A forestry seedling fertilization device

By using a structure such as a corrugated pipe and connecting plate to drive the water pressure to mix the fertilizer mother liquor, the problems of filter clogging and parts wear are solved, achieving efficient fertilization without filters, reducing maintenance frequency and cost, and allowing for adjustable fertilizer concentration.

CN120898602BActive Publication Date: 2026-04-14NANTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANTONG UNIV
Filing Date
2025-08-08
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In existing forestry seedling and fertilization equipment, filters are prone to clogging and parts that are not wear-resistant require regular maintenance, leading to inconvenience in use and frequent maintenance.

Method used

It adopts a structure with corrugated pipe, connecting plate and blocking reversing component, and uses water pressure to drive the connecting plate to move back and forth. Combined with mother liquor extraction mechanism and pressure control component, it realizes the proportional mixing of water and fertilizer mother liquor. It does not require piston structure and external drive equipment, avoiding parts wear and filter clogging.

Benefits of technology

It enables efficient fertilization without filters, reduces maintenance frequency and costs, enhances the practicality of the equipment, and allows for adjustable fertilizer concentration to meet different needs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN120898602B_ABST
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Abstract

The application relates to the technical field of fertilizing equipment, and discloses a forestry seedling raising fertilizing equipment which comprises a water inlet pipe and a water outlet pipe, a shell is arranged on one side of the water inlet pipe, a connecting block is arranged in the shell, two cavities are respectively formed in the connecting block, one end of the water inlet pipe penetrates through the shell and is communicated with one of the cavities, corrugated pipes are fixedly connected to the side walls of the shell, and through holes communicated with the two corrugated pipes are formed in the cavity inner walls. The application does not operate by water pressure driving the piston, and the wear of the piston does not need to be considered during operation, so that when the device is used, the problem of regular maintenance caused by the wear of the non-wear-resistant parts does not occur, the device is not afraid of containing small impurities in water when being used, so that a filter does not need to be arranged in front of the device, the cost can be reduced, the trouble of regularly cleaning the filter is saved, and the practicability of the device is enhanced.
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Description

Technical Field

[0001] This invention relates to the field of fertilization equipment technology, and more particularly to a forestry seedling fertilization equipment. Background Technology

[0002] When seedlings grow to a certain size, they need to be fertilized. Fertilizer proportioning pumps are usually used for fertilization. When using a fertilizer proportioning pump, it is connected in series or parallel to the watering pipe. When water flows through the pipe, the proportioning pump will draw fertilizer stock solution according to a certain ratio, dissolve the fertilizer stock solution in the water, and then spray it through the watering pipe to complete the fertilization.

[0003] When a proportional pump is in use, water pressure drives a large piston. During one reciprocating stroke of the large piston, the moving large piston drives a small piston, which draws in fertilizer concentrate and dissolves it in water. The concentrate is then sprayed through the irrigation pipe. This water-pressure driven method allows the proportional pump to operate without an external drive unit, making it convenient and quick to use. However, this method of continuous piston movement leads to rapid wear on the rubber sleeves of both pistons during operation, as the rubber sleeves are not wear-resistant. Therefore, the device requires regular maintenance, and pistons need to be replaced promptly if wear causes a leak. Currently, to reduce piston wear, a filter is installed at the inlet pipe to prevent water containing large amounts of impurities from entering the proportional pump and accelerating piston wear. However, this filter has very small mesh openings to filter fine particles, making it very easy to clog. While installing a filter reduces the frequency of piston replacement during regular maintenance, it requires frequent and inconvenient cleaning of the filter during use. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a forestry seedling fertilization device that does not require the installation of filters and avoids the problem of regular maintenance due to wear and tear of non-wear-resistant parts.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A forestry seedling fertilization device includes an inlet pipe and an outlet pipe. A housing is provided on one side of the inlet pipe, and a connecting block is installed inside the housing. Two cavities are respectively opened inside the connecting block. One end of the inlet pipe passes through the housing and communicates with one of the cavities. Corrugated pipes are fixedly connected to both side walls of the housing. Through holes communicating with the two corrugated pipes are opened on the inner wall of the cavity, and a blocking and reversing component is installed inside the cavity. A connecting plate is fixedly connected to one end of each corrugated pipe. A connecting rod is provided between the two connecting plates and is fixedly connected to the connecting plate. A fusion box is fixedly connected to the upper surface of the housing, and one end of the fusion box communicates with the outlet pipe. A connecting pipe is connected to one side wall of the other cavity, and one end of the connecting pipe passes through the housing and communicates with the fusion box. A first one-way valve is fixedly connected to the inner wall of the connecting pipe. A slot is opened on both side walls of the housing, and a mother liquor extraction mechanism is fixedly connected to the inner wall of the slot. A pressure control component is fixedly connected to one side wall of the connecting plate.

[0007] Preferably, the blocking and reversing assembly includes a baffle disposed within the cavity. A rotating shaft is fixedly connected to both side walls of the baffle, and a support plate is rotatably connected to one end of each rotating shaft. The support plate is fixedly connected to the inner wall of the cavity. A sliding rod is disposed within the cavity, with both ends of the sliding rod penetrating the cavity. An elastic element is fixedly connected to one side wall of the sliding rod, and a rotating block is fixedly connected to one end of the elastic element. One end of the rotating block is rotatably connected to the baffle. A clearance groove is formed on one side wall of the connecting block, and a gear is rotatably connected to the inner wall of the clearance groove. Racks mesh with both side walls of the gear, and one end of each rack is fixedly connected to a sliding rod outside the two cavities.

[0008] Preferably, the mother liquor extraction mechanism includes a three-way pipe, and both ends of the three-way pipe are connected to fixed sleeves. The fixed sleeves are fixedly connected to the inner wall of the slot, and an elastic membrane is provided on one side of the fixed sleeve. A retaining ring is provided on one side of the elastic membrane, and one end of the retaining ring is threadedly connected to the fixed sleeve. A spring is provided inside the fixed sleeve. A second one-way valve is fixedly connected to the inner wall of the three-way pipe near the fixed sleeve. A conduit is connected to the outer wall of the fixed sleeve, and one end of the conduit is connected to the fusion box. A third one-way valve is fixedly connected to the inner wall of the conduit.

[0009] Preferably, the pressure control assembly includes a threaded sleeve fixedly connected to the connecting plate, and the inner wall of the threaded sleeve is threaded with a push rod.

[0010] Preferably, a partition is fixedly connected to one side wall of the elastic membrane, and one side wall of the partition abuts against the spring.

[0011] Preferably, an inspection port is provided on one side wall of the housing, and a door panel is provided inside the inspection port. One end of the door panel passes through the inspection port and extends to the outside of the inspection port. A handle groove is provided on the side wall of the door panel located outside the inspection port.

[0012] Preferably, soft pads are fixedly connected to both side walls of the baffle.

[0013] Preferably, the outer wall of the top rod is threaded with a nut, and one side wall of the nut abuts against the threaded sleeve.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This invention, through the combined use of a corrugated pipe, connecting plate, and blocking / reversing assembly, allows water pressure to drive the connecting plate to reciprocate. This reciprocating connecting plate, in conjunction with a mother liquor extraction mechanism, allows water and fertilizer mother liquor to be added to a mixing tank in a specific ratio for mixing. This device requires no external drive equipment and does not contain a piston structure; it is not driven by water pressure. Therefore, piston wear is not a concern during operation, eliminating the need for regular maintenance due to wear-prone parts. Furthermore, this device is not affected by small impurities in the water, eliminating the need for a filter. This not only reduces costs but also eliminates the hassle of periodically cleaning filters, thus enhancing the device's practicality.

[0016] 2. In this invention, by setting up a pressure control assembly consisting of a threaded sleeve and a push rod, the push rod can be rotated to adjust the length of the pressure control assembly during use. Then, after the connecting plate moves to a certain position, the degree of compression of the mother liquor extraction mechanism by the pressure control assembly can be adjusted. In one cycle, the amount of fertilizer mother liquor pressed into the fusion box can be adjusted. By adjusting the ratio of water to fertilizer mother liquor, the concentration of fertilizer can be adjusted to meet the needs of the user. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a forestry seedling fertilization device proposed in this invention;

[0018] Figure 2 This is a schematic diagram of the front section of a forestry seedling fertilization device proposed in this invention;

[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0020] Figure 4 This is a first top-section structural diagram of a forestry seedling fertilization device proposed in this invention;

[0021] Figure 5 for Figure 4 Enlarged structural diagram at point B;

[0022] Figure 6This is a second top-section schematic diagram of a forestry seedling fertilization device proposed in this invention;

[0023] Figure 7 for Figure 6 Enlarged structural diagram at point C;

[0024] Figure 8 This is a side sectional view of a forestry seedling fertilization device proposed in this invention.

[0025] In the diagram: 1. Inlet pipe; 2. Outlet pipe; 3. Shell; 4. Connecting block; 5. Cavity; 6. Bellows; 7. Connecting plate; 8. Connecting rod; 9. Fusion box; 10. Connecting pipe; 11. First check valve; 12. Baffle; 13. Rotating shaft; 14. Support plate; 15. Slide rod; 16. Elastic element; 17. Rotating block; 18. T-pipe; 19. Fixing sleeve; 20. Elastic diaphragm; 21. Retaining ring; 22. Spring; 23. Second check valve; 24. Conduit; 25. Third check valve; 26. Threaded sleeve; 27. Top rod; 28. Partition plate; 29. ​​Door panel; 30. Handle groove; 31. Nut; 32. Through hole; 33. Relief groove; 34. Gear; 35. Rack. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] Reference Figures 1-8 A forestry seedling fertilization device includes an inlet pipe 1 and an outlet pipe 2. A housing 3 is provided on one side of the inlet pipe 1, and a connecting block 4 is provided inside the housing 3. Two cavities 5 are respectively opened inside the connecting block 4. One end of the inlet pipe 1 passes through the housing 3 and communicates with one of the cavities 5. Corrugated pipes 6 are fixedly connected to both side walls of the housing 3. Through holes 32 are opened on the inner wall of the cavity 5, respectively communicating with the two corrugated pipes 6. A blocking and reversing assembly is provided inside the cavity 5. A connecting plate 7 is fixedly connected to one end of each corrugated pipe 6. A connecting rod 8 is provided between the 7 and the connecting rod 8 is fixedly connected to the connecting plate 7. A fusion box 9 is fixedly connected to the upper surface of the housing 3, and one end of the fusion box 9 is connected to the water outlet pipe 2. A connecting pipe 10 is connected to one side wall of another cavity 5, and one end of the connecting pipe 10 passes through the housing 3 and is connected to the fusion box 9. A first one-way valve 11 is fixedly connected to the inner wall of the connecting pipe 10. A slot is provided on both sides of the housing 3, and a mother liquor extraction mechanism is fixedly connected to the inner wall of the slot. A pressure control component is fixedly connected to one side wall of the connecting plate 7.

[0028] As can be seen from the above structure, by using the corrugated pipe 6, connecting plate 7, and blocking and reversing components, water pressure can drive the connecting plate 7 to move back and forth. The reciprocating connecting plate 7, in conjunction with the mother liquor extraction mechanism, can add water and fertilizer mother liquor into the mixing tank 9 in a certain proportion for mixing. This device does not require an external drive device, and since it does not have a piston structure and is not driven by water pressure, there is no need to consider piston wear during operation. Therefore, this device will not have the problem of wear-sensitive parts requiring regular maintenance. This device is not afraid of small impurities in the water, so there is no need to install a filter in front of the device. This not only reduces costs but also saves the trouble of cleaning the filter regularly, thus enhancing the practicality of the device.

[0029] Furthermore, the blocking and reversing assembly includes a baffle 12 disposed within the cavity 5. A rotating shaft 13 is fixedly connected to both side walls of the baffle 12, and a support plate 14 is rotatably connected to one end of each rotating shaft 13. The support plate 14 is fixedly connected to the inner wall of the cavity 5. A sliding rod 15 is disposed within the cavity 5, with both ends of the sliding rod 15 penetrating the cavity 5. An elastic element 16 is fixedly connected to one side wall of the sliding rod 15. The elastic element 16 can be a rubber band or a tension spring, possessing a certain elasticity. A rotating block 17 is fixedly connected to one end of the elastic element 16, and one end of the rotating block 17 is rotatably connected to the baffle 12. A clearance groove 33 is provided on one side wall of the connecting block 4. A gear 34 is rotatably connected to the inner wall of the clearance groove 33. Racks 35 mesh with both side walls of the gear 34, and one end of each rack 35 is fixedly connected to the sliding rod 15 outside the two cavities 5, respectively. By setting the baffle 12... The elastic element 16, rack 35, and gear 34 work together. After the connecting plate 7 moves to a certain position, the connecting plate 7 abuts against one of the slide rods 15, causing the connecting plate 7 to push the slide rod 15 to move. The moving slide rod 15 drives the rack 35 to move. The moving rack 35 drives the other rack 35 and the other slide rod 15 to move in the opposite direction through the gear 34. Both moving slide rods 15 drive one end of the elastic element 16 to move. After one end of the elastic element 16 moves to a certain position, the slide rod 15 pulls the baffle 12 to rotate through the elastic element 16, so that the baffle 12 rotates to cover the other through hole 32. At this time, the water from the water inlet pipe 1 enters the other bellows 6 through the other through hole 32, pressing the connecting plate 7 to move in the opposite direction. This completes the reciprocating cycle of the connecting plate 7. At the same time, during the cycle, water is forced into the fusion box 9.

[0030] Furthermore, the mother liquor extraction mechanism includes a three-way pipe 18, with fixed sleeves 19 connected to both ends of the three-way pipe 18. The fixed sleeves 19 are fixedly connected to the inner wall of the slot, and an elastic membrane 20 is provided on one side of the fixed sleeve 19. A retaining ring 21 is provided on one side of the elastic membrane 20, and one end of the retaining ring 21 is threadedly connected to the fixed sleeve 19. A spring 22 is provided inside the fixed sleeve 19. A second one-way valve 23 is fixedly connected to the inner wall of the three-way pipe 18 near the fixed sleeve 19. A conduit 24 is connected to the outer wall of the fixed sleeve 19, and one end of the conduit 24 is connected to the fusion box 9. A third one-way valve 25 is fixedly connected to the inner wall of the conduit 24. By using the three-way pipe 18, the elastic membrane 20, and the conduit 24 in conjunction, when the connecting plate 7 reciprocates to a certain position, the moving connecting plate... 7 drives the pressure control component to move. After the pressure control component moves to a certain position, it will push the elastic membrane 20, causing the elastic membrane 20 to contract. The contracted elastic membrane 20 pushes the fertilizer mother liquor medium in the fixed sleeve 19 into the fusion box 9 through the conduit 24, so that the fertilizer mother liquor and water can be mixed in the fusion box 9. The mixed water is then poured onto the seedlings through the water outlet pipe 2, thus completing the fertilization. When the pressure control component on the connecting plate 7 disengages from the elastic membrane 20, the spring 22 pushes the partition 28 and the elastic membrane 20 to reset. The reset elastic membrane 20 makes the fixed sleeve 19 under negative pressure. At this time, the fixed sleeve 19 under negative pressure draws fertilizer mother liquor from one end of the three-way pipe 18 for replenishment. By continuously cycling in this way, water and fertilizer mother liquor can be mixed in the fusion box 9 in a certain proportion.

[0031] Furthermore, the pressure control assembly includes a threaded sleeve 26 fixedly connected to the connecting plate 7, and a push rod 27 is threadedly connected to the inner wall of the threaded sleeve 26. By setting up the pressure control assembly composed of the threaded sleeve 26 and the push rod 27, the length of the pressure control assembly can be adjusted by rotating the push rod 27 during use. Then, after the connecting plate 7 moves to a certain position, the degree of compression of the mother liquor extraction mechanism of the pressure control assembly can be adjusted so as to adjust the amount of fertilizer mother liquor pressed into the fusion box 9 in one cycle. By adjusting the ratio of the mixing water to the fertilizer mother liquor, the concentration of the fertilizer can be adjusted to meet the needs of the user.

[0032] Furthermore, a partition plate 28 is fixedly connected to one side wall of the elastic membrane 20, and one side wall of the partition plate 28 abuts against the spring 22; by setting the partition plate 28, the spring 22 and the elastic membrane 20 can be isolated, and the spring 22 can be prevented from damaging the elastic membrane 20.

[0033] Furthermore, a maintenance opening is provided on one side wall of the housing 3, and a door panel 29 is provided inside the maintenance opening. One end of the door panel 29 passes through the maintenance opening and extends to the outside of the maintenance opening. A handle groove 30 is provided on the side wall of the door panel 29 located outside the maintenance opening. By providing a maintenance opening, the adjustment of the top rod 27 can be performed through the maintenance opening, and the door panel 29 can seal the maintenance opening.

[0034] Furthermore, soft pads are fixedly connected to both sides of the baffle 12; by setting soft pads, the sealing of the through hole 32 can be ensured when the baffle 12 covers the through hole 32.

[0035] Furthermore, a nut 31 is threaded onto the outer wall of the push rod 27, and one side wall of the nut 31 abuts against the threaded sleeve 26; by setting the nut 31, the push rod 27 can be fixed to prevent the push rod 27 from rotating at will.

[0036] In this invention, before use, the inlet pipe 1 and the outlet pipe 2 are connected to the watering pipe respectively, and one end of the three-way pipe 18 is put into the fertilizer mother liquor.

[0037] In use, water flows into one of the chambers 5 through the inlet pipe 1. The water in one of the chambers 5 enters one of the corrugated pipes 6 through one of the through holes 32. The water in the corrugated pipe 6 presses against one of the connecting plates 7, causing the connecting plate 7 to move. When one of the connecting plates 7 moves, the moving connecting plate 7 drives another connecting plate 7 to move through the connecting rod 8, causing the other connecting plate 7 to compress the other corrugated pipe 6. The compressed corrugated pipe 6 forces water through the through hole 32 below the other chamber 5, the chamber 5 and the connecting pipe 10 into the fusion box 9.

[0038] After the connecting plate 7 moves to a certain position, the connecting plate 7 abuts against one of the slide rods 15, which in turn causes the connecting plate 7 to push the slide rod 15 to move. The moving slide rod 15 drives the rack 35 to move. The moving rack 35 drives the other rack 35 and the other slide rod 15 to move in the opposite direction through the gear 34. Both moving slide rods 15 drive one end of the elastic element 16 to move. After one end of the elastic element 16 moves to a certain position, the slide rod 15 pulls the baffle 12 to rotate through the elastic element 16, so that the baffle 12 rotates to cover the other through hole 32. At this time, the water through the water inlet pipe 1 enters the other corrugated pipe 6 through the other through hole 32, so as to press the connecting plate 7 to move in the opposite direction. This completes the reciprocating cycle of the connecting plate 7. At the same time, during the cycle, water is pressed into the fusion box 9.

[0039] Furthermore, when the connecting plate 7 moves back and forth to a certain position, the moving connecting plate 7 drives the pressure control component to move. After the pressure control component moves to a certain position, the pressure control component will push the elastic membrane 20, thereby causing the elastic membrane 20 to contract. The contracted elastic membrane 20 pushes the fertilizer mother liquor medium in the fixed sleeve 19 into the fusion box 9 through the conduit 24, so that the fertilizer mother liquor and water can be fused in the fusion box 9. The fused water is then poured onto the seedlings through the water outlet pipe 2, thus completing the fertilization.

[0040] When the pressure control component on the connecting plate 7 disengages from the elastic membrane 20, the spring 22 pushes the partition plate 28 and the elastic membrane 20 to reset. The reset elastic membrane 20 causes the fixed sleeve 19 to be under negative pressure. At this time, the fixed sleeve 19 under negative pressure draws fertilizer mother liquor through one end of the three-way pipe 18 for replenishment. By continuously circulating in this way, water and fertilizer mother liquor can be mixed in a certain proportion in the mixing tank 9. This device can not only be driven by water pressure, but also, unlike existing proportional pumps, it does not have a piston structure and is not driven by water pressure. During operation, there is no need to consider piston wear. Therefore, during use, there will be no problem of wear-sensitive parts requiring regular maintenance. This device is not afraid of small impurities in the water, so there is no need to install a filter in front of the device. This not only reduces costs but also saves the trouble of cleaning the filter regularly, thereby enhancing the practicality of the device.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A forestry seedling fertilization device, comprising an inlet pipe (1) and an outlet pipe (2), characterized in that, A housing (3) is provided on one side of the water inlet pipe (1), and a connecting block (4) is provided inside the housing (3). The connecting block (4) has two cavities (5) respectively. One end of the water inlet pipe (1) passes through the housing (3) and communicates with one of the cavities (5). Corrugated pipes (6) are fixedly connected to both side walls of the housing (3). Through holes (32) communicating with the two corrugated pipes (6) are opened on the inner wall of the cavity (5). A blocking and reversing assembly is provided inside the cavity (5). A connecting plate (7) is fixedly connected to one end of the corrugated pipe (6). A connecting rod (8) is provided between the two connecting plates (7), and the connecting rod (8) is fixedly connected to the connecting plate (7). (3) has a fusion box (9) fixedly connected to its upper surface, and one end of the fusion box (9) is connected to the water outlet pipe (2). Another cavity (5) has a connecting pipe (10) connected to one side wall, and one end of the connecting pipe (10) passes through the shell (3) and is connected to the fusion box (9). The inner wall of the connecting pipe (10) is fixedly connected to a first one-way valve (11), which is used to prevent the liquid in the fusion box (9) from flowing back. The shell (3) has slots on both sides, and the inner wall of the slots is fixedly connected to a mother liquor extraction mechanism. The connecting plate (7) has a pressure control component fixedly connected to one side wall, which is used to adjust the amount of fertilizer mother liquor pressed into the fusion box (9).

2. The forestry seedling fertilization equipment according to claim 1, characterized in that, The blocking and reversing assembly includes a baffle (12) disposed within a cavity (5). A rotating shaft (13) is fixedly connected to both side walls of the baffle (12), and a support plate (14) is rotatably connected to one end of the rotating shaft (13). The support plate (14) is fixedly connected to the inner wall of the cavity (5). A sliding rod (15) is disposed within the cavity (5), and both ends of the sliding rod (15) penetrate the cavity (5). An elastic element is fixedly connected to one side wall of the sliding rod (15). 16), and one end of the elastic element (16) is fixedly connected to a rotating block (17). One end of the rotating block (17) is rotatably connected to the baffle (12). A clearance groove (33) is provided on one side wall of the connecting block (4). A gear (34) is rotatably connected to the inner wall of the clearance groove (33). Both sides of the gear (34) are meshed with racks (35). One end of each rack (35) is fixedly connected to a sliding rod (15) outside the two cavities (5).

3. The forestry seedling fertilization equipment according to claim 1, characterized in that, The mother liquor extraction mechanism includes a three-way pipe (18), and both ends of the three-way pipe (18) are connected to a fixed sleeve (19). The fixed sleeve (19) is fixedly connected to the inner wall of the slot, and an elastic membrane (20) is provided on one side of the fixed sleeve (19). A retaining ring (21) is provided on one side of the elastic membrane (20), and one end of the retaining ring (21) is threadedly connected to the fixed sleeve (19). A spring (22) is provided inside the fixed sleeve (19). After the elastic membrane (20) loses its compressive force, the spring (22) is used to push the elastic membrane (20) to reset. A second one-way valve (23) is fixedly connected to the inner wall of the three-way pipe (18) near the fixed sleeve (19). A conduit (24) is connected to the outer wall of the fixed sleeve (19), and one end of the conduit (24) is connected to the fusion box (9). A third one-way valve (25) is fixedly connected to the inner wall of the conduit (24).

4. The forestry seedling fertilization equipment according to claim 1, characterized in that, The pressure control assembly includes a threaded sleeve (26) fixedly connected to the connecting plate (7), and the inner wall of the threaded sleeve (26) is threaded with a push rod (27).

5. A forestry seedling raising and fertilization device according to claim 3, characterized in that, A partition (28) is fixedly connected to one side wall of the elastic membrane (20), and one side wall of the partition (28) abuts against the spring (22). The partition (28) is used to isolate the spring (22) from the elastic membrane (20) to prevent the spring (22) from damaging the elastic membrane (20).

6. The forestry seedling fertilization equipment according to claim 1, characterized in that, The housing (3) has an inspection port on one side wall, and a door panel (29) is provided inside the inspection port. One end of the door panel (29) passes through the inspection port and extends to the outside of the inspection port. A handle groove (30) is provided on the side wall of the door panel (29) located outside the inspection port.

7. A forestry seedling raising and fertilization device according to claim 2, characterized in that, Both sides of the baffle (12) are fixedly connected with soft pads. When the soft pad baffle (12) covers the through hole (32), it is used to ensure the sealing of the through hole (32).

8. A forestry seedling raising and fertilization device according to claim 4, characterized in that, The outer wall of the top rod (27) is threaded with a nut (31), and one side wall of the nut (31) abuts against the threaded sleeve (26). The nut (31) is used to fix the top rod (27).

Citation Information

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