Forestry seedling raising and fertilizing equipment

Abstract

The invention relates to the technical field of fertilizing equipment, and discloses forestry seedling raising and 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 formed in the connecting block, one end of the water inlet pipe penetrates through the shell and is communicated with one cavity, and the other end of the water inlet pipe is communicated with the other cavity. Corrugated pipes are fixedly connected to the side walls of the two sides of the shell, and through holes communicating with the two corrugated pipes are formed in the inner wall of the cavity. According to the device, the piston is not pressed to operate through water pressure, and abrasion of the piston does not need to be considered during operation, so that the problem that regular maintenance is needed due to abrasion of parts which are not resistant to abrasion does not occur when the device is used, the device is not afraid of small impurities contained in water when the device is used, and a filter does not need to be arranged in front of the device; therefore, the cost can be reduced, the trouble of regularly cleaning the filter is saved, and the practicability of the device is enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fertilizing equipment, in particular to a forestry seedling fertilizing equipment. BACKGROUND

[0002] When seedlings grow to a certain extent, fertilization is needed during seedling cultivation. A fertilizing proportion pump is generally used for fertilization. The proportion pump is connected in series or parallel with the water pipe during use. When water flows into the pipe, the proportion pump extracts the fertilizer mother liquor according to a certain proportion, so that the fertilizer mother liquor is dissolved in the water, and then sprayed through the water pipe to complete fertilization.

[0003] The proportion pump is driven by water pressure during use. In one reciprocating stroke of the large piston, the moving large piston drives the small piston to operate, the operating small piston extracts the fertilizer mother liquor, and then the fertilizer mother liquor is dissolved in the water, and then sprayed through the water pipe for fertilization. This driving method by water pressure makes the proportion pump work without external driving device, and the proportion pump is convenient and fast to use. However, this method of fertilization by the operation of large and small pistons is not suitable for long-term operation because the rubber sleeve on the outer wall of the piston is not wear-resistant, so the rubber sleeve on the outer wall of the large and small pistons is worn out quickly during the operation of the proportion pump. Therefore, the device needs regular maintenance to replace the piston in time when the piston is found to be tightly sealed due to wear. At present, in order to reduce the wear of the piston, a filter is installed at the water inlet pipe to prevent water containing a large amount of impurities from entering the proportion pump and accelerating the wear of the piston. However, in order to filter small particles, the mesh of the filter is very small, which makes the filter very easy to block. After installing the filter, although the frequency of replacing the piston can be reduced during regular maintenance, the filter needs to be cleaned from time to time during use, which is very troublesome. SUMMARY

[0004] The present application aims to solve the problems in the prior art and provides a forestry seedling fertilizing equipment. The filter is not needed, and the problem of regular maintenance due to wear of non-wear-resistant parts is avoided.

[0005] To achieve the above purpose, the present application adopts the following technical scheme:

[0006] The utility model provides a forestry seedling fertilization equipment, including water inlet pipe and water outlet pipe, one side of water inlet pipe is provided with the casing, and the casing is provided with the connecting block, the inside of connecting block is opened two cavities respectively, and one end of water inlet pipe penetrates through the casing and is communicated with one of the cavities, and the two side walls of casing are all fixedly connected with the bellows, and the inner wall of cavity is provided with the through -hole communicated with two bellows respectively, and the cavity is provided with the blocking reversing component, one end of bellow is fixedly connected with the connecting plate, and the connecting rod is arranged between two connecting plates, and the connecting rod is fixedly connected with the connecting plate, the upper surface of casing is fixedly connected with the fusion box, and one end of fusion box is communicated with water outlet pipe, one side wall of another cavity is communicated with the connecting pipe, and one end of connecting pipe penetrates through the casing and is communicated with the fusion box, the inner wall of connecting pipe is fixedly connected with the first check valve, the two side walls of casing are all provided with the clamping groove, and the inner wall of clamping groove is fixedly connected with the mother liquor extraction mechanism, one side wall of connecting plate is fixedly connected with the pressure control component.

[0007] Preferably, the blocking reversing component includes a baffle provided in the cavity, both side walls of the baffle are fixedly connected with shafts, one end of each shaft is rotatably connected with a support plate, the support plate is fixedly connected with the inner wall of the cavity, a slide rod is provided in the cavity, both ends of the slide rod penetrate through the cavity, one side wall of the slide rod is fixedly connected with an elastic member, one end of the elastic member is fixedly connected with a rotating block, one end of the rotating block is rotatably connected with the baffle, one side wall of the connecting block is provided with a clearance slot, the inner wall of the clearance slot is rotatably connected with a gear, both side walls of the gear are engaged with racks, one end of each rack is fixedly connected with a slide rod outside the two cavities.

[0008] Preferably, the mother liquor extraction mechanism includes a tee joint, both ends of the tee joint are communicated with fixed sleeves, the fixed sleeves are fixedly connected with the inner wall of the clamping groove, one side of each fixed sleeve is provided with an elastic membrane, one side of the elastic membrane is provided with a blocking ring, one end of the blocking ring is threadedly connected with the fixed sleeve, a spring is provided in the fixed sleeve, a second check valve is fixedly connected with the inner wall of the tee joint close to the fixed sleeve, an outer wall of the fixed sleeve is communicated with a conduit, one end of the conduit is communicated with the fusion box, a third check valve is fixedly connected with the inner wall of the conduit.

[0009] Preferably, the pressure control component includes a threaded sleeve fixedly connected with the connecting plate, and a jacking rod threadedly connected with the inner wall of the threaded sleeve.

[0010] Preferably, one side wall of the elastic membrane is fixedly connected with a partition plate, and one side wall of the partition plate is in contact with the spring.

[0011] Preferably, one side wall of the casing is provided with an access hole, a door plate is provided in the access hole, one end of the door plate penetrates through the access hole and extends to the outside of the access hole, a handle slot is provided in the side wall of the door plate outside the access hole.

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

[0013] Preferably, the outer wall of the jacking rod is threadedly connected with a nut, and one side wall of the nut is abutted against the threaded sleeve.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] 1. According to the present application, the water pressure can drive the reciprocating movement of the connecting plate, and the reciprocating connecting plate cooperates with the mother liquor extraction mechanism, so that water and fertilizer mother liquor can be added into the fusion tank in a certain proportion. The device does not need external driving equipment, and does not set a piston structure, so it does not need to consider the wear of the piston during operation. Therefore, the device does not need regular maintenance due to the wear of non-wear-resistant parts, and does not need to set a filter in front of the device due to the fear of small impurities in the water. This not only reduces the cost, but also saves the trouble of cleaning the filter regularly, thereby enhancing the practicality of the device.

[0016] 2. According to the present application, the pressure control assembly composed of the threaded sleeve and the jacking rod can adjust the length of the pressure control assembly by rotating the jacking rod during use, so as to adjust the degree of compression of the mother liquor extraction mechanism after the connecting plate moves to a certain position, so as to adjust the amount of fertilizer mother liquor injected into the fusion tank in one cycle, adjust the ratio of water and fertilizer mother liquor, and adjust the concentration of fertilizer to meet the needs of users. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic diagram of a forestry seedling raising and fertilizing equipment proposed by the present application;

[0018] Figure 2 It is a front cross-sectional structure schematic diagram of a forestry seedling raising and fertilizing equipment proposed by the present application;

[0019] Figure 3 It is Figure 2 an enlarged structure schematic diagram of position A;

[0020] Figure 4 It is a first downward cross-sectional structure schematic diagram of a forestry seedling raising and fertilizing equipment proposed by the present application;

[0021] Figure 5 It is Figure 4 an enlarged structure schematic diagram of position B;

[0022] Figure 6It is a second profile structure schematic diagram of a forestry seedling fertilization equipment provided by the application;

[0023] Figure 7 It is Figure 6 The structure schematic diagram is enlarged at C;

[0024] Figure 8 It is a side profile structure schematic diagram of a forestry seedling fertilization equipment provided by the application.

[0025] In the figure: 1, water inlet pipe; 2, water outlet pipe; 3, shell; 4, connecting block; 5, cavity; 6, corrugated pipe; 7, connecting plate; 8, connecting rod; 9, fusion box; 10, connecting pipe; 11, first one-way valve; 12, baffle; 13, rotating shaft; 14, support plate; 15, sliding rod; 16, elastic piece; 17, rotating block; 18, tee; 19, fixing sleeve; 20, elastic film; 21, blocking ring; 22, spring; 23, second one-way valve; 24, guide pipe; 25, third one-way valve; 26, threaded sleeve; 27, jacking rod; 28, partition; 29, door plate; 30, handle groove; 31, nut; 32, through hole; 33, accommodation groove; 34, gear; 35, rack. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the application will be apparently and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application.

[0027] With reference to Figures 1-8 A forestry seedling fertilization equipment, comprising a water inlet pipe 1 and a water outlet pipe 2, one side of the water inlet pipe 1 is provided with a shell 3, the shell 3 is provided with a connecting block 4 inside, two cavities 5 are respectively formed in the connecting block 4, one end of the water inlet pipe 1 penetrates through the shell 3 and communicates with one of the cavities 5, corrugated pipes 6 are fixedly connected to the two side walls of the shell 3, through holes 32 are formed in the inner walls of the cavities 5 and respectively communicate with the two corrugated pipes 6, a blocking and reversing assembly is arranged in the cavity 5, one end of each corrugated pipe 6 is fixedly connected with a connecting plate 7, a connecting rod 8 is arranged between the two connecting plates 7 and fixedly connected with the connecting plates 7, a fusion box 9 is fixedly connected to the upper surface of the shell 3, one end of the fusion box 9 communicates with the water outlet pipe 2, one side wall of the other cavity 5 is connected with a connecting pipe 10, one end of the connecting pipe 10 penetrates through the shell 3 and communicates with the fusion box 9, a first one-way valve 11 is fixedly connected to the inner wall of the connecting pipe 10, clamping grooves are formed in the two side walls of the shell 3 and fixedly connected with a mother liquor extraction mechanism on the inner walls of the clamping grooves, a pressure control assembly is fixedly connected to one side wall of the connecting plate 7.

[0028] From the above structure can be known: through the cooperation of the corrugated pipe 6, the connecting plate 7 and the blocking reversing assembly, the water pressure can drive the connecting plate 7 to reciprocate, and the reciprocating connecting plate 7 cooperates with the mother liquor extraction mechanism, so that the water and the fertilizer mother liquor can be added into the fusion box 9 according to a certain proportion. The use of the device does not need external driving equipment, and the device does not set a piston structure, and the piston is not driven by water pressure to run. Therefore, during operation, the wear of the piston does not need to be considered. Therefore, during the use of the device, there is no problem of regular maintenance caused by the wear of non-wear-resistant parts. The device does not need to be set in front of a filter, which not only can reduce the cost, but also can save the trouble of regular cleaning of the filter, thereby enhancing the practicability of the device.

[0029] Further, the blocking reversing assembly comprises a baffle 12 arranged in the cavity 5, both sides of the baffle 12 are fixedly connected with rotating shafts 13, one end of the rotating shaft 13 is rotatably connected with a supporting plate 14, the supporting plate 14 is fixedly connected with the inner wall of the cavity 5, a slide rod 15 is arranged in the cavity 5, both ends of the slide rod 15 are arranged through the cavity 5, one side of the slide rod 15 is fixedly connected with an elastic element 16, the elastic element 16 can be a rubber belt or a tensile spring with a certain elastic structure, one end of the elastic element 16 is fixedly connected with a rotating block 17, one end of the rotating block 17 is rotatably connected with the baffle 12, one side of the connecting block 4 is provided with a clearance slot 33, the inner wall of the clearance slot 33 is rotatably connected with a gear 34, both sides of the gear 34 are engaged with racks 35, one end of each of the two racks 35 is fixedly connected with the slide rod 15 outside the two cavities 5; through the cooperation of the baffle 12, the elastic element 16, the rack 35 and the gear 34, when the connecting plate 7 moves to a certain position, the connecting plate 7 abuts against one of the slide rods 15, thereby driving 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 of the 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 drives the baffle 12 to rotate through the elastic element 16, so that the baffle 12 rotates to a position covering 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 to drive the connecting plate 7 to move in the opposite direction, so that the reciprocating cycle of the connecting plate 7 is completed, and at the same time, the water is pressed into the fusion box 9 during the cycle.

[0030] Further, the mother liquor extraction mechanism comprises a three-way pipe 18, both ends of the three-way pipe 18 are communicated with a fixed sleeve 19, the fixed sleeve 19 is fixedly connected with the inner wall of the clamping groove, one side of the fixed sleeve 19 is provided with an elastic film 20, one side of the elastic film 20 is provided with a blocking ring 21, one end of the blocking ring 21 is threadedly connected with the fixed sleeve 19, the fixed sleeve 19 is provided with a spring 22, the inner wall of the three-way pipe 18 close to the fixed sleeve 19 is fixedly connected with a second one-way valve 23, the outer wall of the fixed sleeve 19 is communicated with a conduit 24, one end of the conduit 24 is communicated with the fusion tank 9, the inner wall of the conduit 24 is fixedly connected with a third one-way valve 25; through the cooperation of the three-way pipe 18, the elastic film 20 and the conduit 24, when the connecting plate 7 reciprocatingly moves to a certain position, the moving connecting plate 7 drives the pressure control assembly to move, after the pressure control assembly moves to a certain position, the pressure control assembly will push the elastic film 20, and then the elastic film 20 shrinks, the shrunk elastic film 20 pressurizes the fertilizer mother liquor medium in the fixed sleeve 19 into the fusion tank 9 through the conduit 24, so that the fertilizer mother liquor and water are fused in the fusion tank 9, the fused water is poured on the seedling through the water outlet pipe 2, and the fertilization is completed, when the pressure control assembly on the connecting plate 7 is separated from the elastic film 20, the spring 22 pushes the partition plate 28 and the elastic film 20 to reset, and the reset elastic film 20 makes the fixed sleeve 19 be in negative pressure, at this time, the fixed sleeve 19 in negative pressure sucks the fertilizer mother liquor through one end of the three-way pipe 18 to supplement, so that the water and the fertilizer mother liquor are mixed in the fusion tank 9 according to a certain proportion through continuous circulation.

[0031] Further, the pressure control assembly comprises a threaded sleeve 26 fixedly connected with the connecting plate 7, and the inner wall of the threaded sleeve 26 is threadedly connected with a jacking rod 27; through the pressure control assembly composed of the threaded sleeve 26 and the jacking rod 27, in use, the jacking rod 27 can be rotated to adjust the length of the pressure control assembly, and then after the connecting plate 7 moves to a certain position, the degree of compression of the pressure control assembly on the mother liquor extraction mechanism is adjusted, so that the amount of the fertilizer mother liquor pressurized into the fusion tank 9 is adjusted in one cycle, the matching amount of the water and the fertilizer mother liquor is adjusted, and the concentration of the fertilizer can be adjusted to meet the needs of the user.

[0032] Further, one side wall of the elastic film 20 is fixedly connected with a partition plate 28, and one side wall of the partition plate 28 abuts against the spring 22; through the partition plate 28, the spring 22 and the elastic film 20 can be isolated, and the spring 22 is prevented from damaging the elastic film 20.

[0033] Further, one side wall of the shell 3 is provided with an inspection opening, and the inspection opening is provided with a door plate 29, one end of the door plate 29 penetrates through the inspection opening and extends to the outside of the inspection opening, and a handle groove 30 is formed in the side wall of the door plate 29 outside the inspection opening; through the inspection opening, the jacking rod 27 can be adjusted through the inspection opening, and the door plate 29 can seal the inspection opening.

[0034] Further, the two side walls of the baffle 12 are fixedly connected with soft pads; by arranging the soft pads, the sealing of the through hole 32 can be ensured when the baffle 12 covers the through hole 32.

[0035] Further, the outer wall of the top rod 27 is threadedly connected with a nut 31, and one side wall of the nut 31 abuts against the threaded sleeve 26; by arranging the nut 31, the top rod 27 can be fixed to avoid being randomly rotated.

[0036] In the application, before use, the water inlet pipe 1 and the water outlet pipe 2 are respectively communicated with the water irrigation pipeline, and one end of the tee pipe 18 is placed in the fertilizer mother liquor;

[0037] When used, water flows into one of the cavities 5 through the water inlet pipe 1, and the water in the cavity 5 enters one of the bellows 6 through one of the through holes 32, the water pressure in the bellows 6 drives one of the connecting plates 7 to move, and when one of the connecting plates 7 moves, the moving connecting plate 7 drives the other connecting plate 7 to move through the connecting rod 8, so that the other connecting plate 7 compresses the other bellows 6, and the compressed bellows 6 drives water to flow into the fusion tank 9 through the through hole 32 below the other cavity 5, the cavity 5 and the connecting pipe 10;

[0038] After the connecting plate 7 moves to a certain position, the connecting plate 7 abuts against one of the slide rods 15, and then the connecting plate 7 drives the slide rod 15 to move, the moving slide rod 15 drives the other slide rod 15 to move in the opposite direction through the rack 35 and the gear 34, and the two moving slide rods 15 drive one end of the elastic member 16 to move, after one end of the elastic member 16 moves to a certain position, the slide rod 15 drives the baffle 12 to rotate through the elastic member 16, so that the baffle 12 rotates to a position covering the other through hole 32, at this time, water flowing through the water inlet pipe 1 enters the other bellows 6 through the other through hole 32 to drive the connecting plate 7 to move in the opposite direction, so that the reciprocating circulation of the connecting plate 7 is completed, and at the same time, water is pressed into the fusion tank 9 in the circulation process;

[0039] When the connecting plate 7 reciprocally moves to a certain position, the moving connecting plate 7 drives the pressure control assembly to move, after the pressure control assembly moves to a certain position, the pressure control assembly drives the elastic membrane 20 to contract, and the contracted elastic membrane 20 drives the fertilizer mother liquor medium in the fixing sleeve 19 to flow into the fusion tank 9 through the conduit 24, so that the fertilizer mother liquor and water are fused in the fusion tank 9, and the fused water is sprayed on the seedling through the water outlet pipe 2, so that the fertilization is completed.

[0040] When the pressure control assembly on the connecting plate 7 is separated from the elastic film 20, the spring 22 pushes the partition plate 28 to reset the elastic film 20, the reset elastic film 20 makes the fixed sleeve 19 in negative pressure, at this time the negative pressure fixed sleeve 19 sucks the fertilizer mother liquor through one end of the tee pipe 18 to supplement, so that the water and the fertilizer mother liquor are mixed in the mixing box 9 according to a certain proportion, the device can not only be driven by water pressure to drive the device to run, at the same time, the device is different from the existing proportional pump, the device does not set the piston structure, is not driven by the water pressure to drive the piston to run, when running, the wear of the piston does not need to be considered, therefore, when the device is used, the problem of regular maintenance caused by the wear of the non-wear-resistant parts does not occur, when the device is used, the device is not afraid of containing small impurities in the water, so that the filter does not need to be arranged in front of the device, so that the cost can be reduced, the trouble of cleaning the filter regularly is saved, and the practicability of the device is further enhanced.

[0041] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can replace or change the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A forestry seedling fertilization device comprising a water inlet pipe (1) and a water outlet pipe (2), characterized in that, The water inlet pipe (1) is provided with a shell (3) on one side, and a connecting block (4) is arranged in the shell (3). Two cavities (5) are respectively formed in the inner part of the connecting block (4). One end of the water inlet pipe (1) penetrates through the shell (3) and communicates with one of the cavities (5). The sidewalls of the shell (3) are both fixedly connected with corrugated pipes (6). The inner wall of the cavity (5) is provided with through holes (32) which respectively communicate with the two corrugated pipes (6). A blocking reversing assembly is arranged in the cavity (5). One end of the corrugated pipe (6) is fixedly connected with a connecting plate (7). A connecting rod (8) is arranged between the two connecting plates (7) and fixedly connected with the connecting plates (7). The upper surface of the shell (3) is fixedly connected with a fusion tank (9), and one end of the fusion tank (9) communicates with the water outlet pipe (2). One side of the sidewall of the other cavity (5) is communicated with a connecting pipe (10), and one end of the connecting pipe (10) penetrates through the shell (3) and communicates with the fusion tank (9). The inner wall of the connecting pipe (10) is fixedly connected with a first one-way valve (11) which is used to prevent the backflow of liquid in the fusion tank (9). The sidewalls of the shell (3) are both provided with clamping grooves, and the inner wall of the clamping groove is fixedly connected with a mother liquor extraction mechanism. One side of the sidewall of the connecting plate (7) is fixedly connected with a pressure control assembly which is used to adjust the amount of fertilizer mother liquor pressed into the fusion tank (9).

2. A forestry nursery fertilizing apparatus according to claim 1, characterized in that, The blocking reversing assembly comprises a baffle (12) arranged in the cavity (5). The sidewalls of the baffle (12) are both fixedly connected with rotating shafts (13), and one end of the rotating shaft (13) is rotatably connected with a supporting plate (14) which is fixedly connected with the inner wall of the cavity (5). A sliding rod (15) is arranged in the cavity (5), and both ends of the sliding rod (15) penetrate through the cavity (5). One side of the sidewall of the sliding rod (15) is fixedly connected with an elastic member (16), and one end of the elastic member (16) is fixedly connected with a rotating block (17). One end of the rotating block (17) is rotatably connected with the baffle (12). One side of the sidewall of the connecting block (4) is provided with a clearance slot (33), and the inner wall of the clearance slot (33) is rotatably connected with a gear (34). The sidewalls of the gear (34) are both meshed with racks (35), and one end of each of the two racks (35) is fixedly connected with the sliding rod (15) outside the two cavities (5).

3. The forestry nursery fertilization apparatus of claim 1, wherein, The mother liquor extraction mechanism includes a tee pipe (18), both ends of the tee pipe (18) are communicated with a fixed sleeve (19), the fixed sleeve (19) is fixedly connected with the inner wall of the clamping groove, one side of the fixed sleeve (19) is provided with an elastic film (20), one side of the elastic film (20) is provided with a blocking ring (21), one end of the blocking ring (21) is threadedly connected with the fixed sleeve (19), the fixed sleeve (19) is provided with a spring (22), the spring (22) is used for pushing the elastic film (20) to reset after the elastic film (20) loses the extrusion force, the inner wall of the tee pipe (18) close to the fixed sleeve (19) is fixedly connected with a second one-way valve (23), the outer wall of the fixed sleeve (19) is communicated with a conduit (24), one end of the conduit (24) is communicated with the fusion tank (9), the inner wall of the conduit (24) is fixedly connected with a third one-way valve (25).

4. The forestry nursery fertilization apparatus of claim 1, wherein, The pressure control assembly includes a threaded sleeve (26) fixedly connected with the connecting plate (7), and the inner wall of the threaded sleeve (26) is threadedly connected with a top rod (27).

5. The forestry nursery fertilization apparatus of claim 3, wherein, One side of the elastic film (20) is fixedly connected with a partition plate (28), one side of the partition plate (28) is in abutment with the spring (22), the partition plate (28) is used for isolating the spring (22) and the elastic film (20), so as to avoid that the spring (22) damages the elastic film (20).

6. The forestry nursery fertilization apparatus of claim 1, wherein, One side of the shell (3) is provided with an access hole, and the access hole is provided with a door plate (29), one end of the door plate (29) penetrates through the access hole and extends to the outside of the access hole, and a handle groove (30) is formed in the side wall of the door plate (29) outside the access hole.

7. The forestry nursery fertilization apparatus of claim 2, wherein, The side walls of the baffle (12) are fixedly connected with soft pads, and when the soft pad baffle (12) covers the through hole (32), the soft pad is used for ensuring the sealing performance of the through hole (32).

8. The forestry nursery fertilization apparatus of claim 4, wherein, The outer wall of the top rod (27) is threadedly connected with a nut (31), and one side of the nut (31) is in abutment with the threaded sleeve (26), and the nut (31) is used for fixing the top rod (27).

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