CN218337162U - Landscape plant soil fertilization equipment - Google Patents
Landscape plant soil fertilization equipment Download PDFInfo
- Publication number
- CN218337162U CN218337162U CN202222887000.0U CN202222887000U CN218337162U CN 218337162 U CN218337162 U CN 218337162U CN 202222887000 U CN202222887000 U CN 202222887000U CN 218337162 U CN218337162 U CN 218337162U
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- Prior art keywords
- fertilizer
- top surface
- fixed mounting
- box
- electric putter
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000002689 soil Substances 0.000 title claims abstract description 40
- 230000004720 fertilization Effects 0.000 title claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 88
- 239000003337 fertilizer Substances 0.000 claims abstract description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims abstract description 6
- 239000007924 injection Substances 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 description 12
- 239000000126 substance Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 239000002881 soil fertilizer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Fertilizing (AREA)
Abstract
The utility model relates to a gardens fertilization equipment technical field discloses a landscape plant soil fertilization equipment, comprising a base plate, the top surface fixed mounting of bottom plate has the fertilizer can, the top surface fixed mounting of fertilizer can has the filling funnel, one side fixed mounting of fertilizer can has the fixed plate, it drives the inside liquid fertilizer of fertilizer can and gets into the inside of feed box and feed pipe through the connecting pipe and outwards spout through going out the liquid hole to increase the water pump, after the operation is accomplished the user of service only need start electric putter two, make electric putter two reset and can accomplish once more to going out the sealed in liquid hole, convenient operation once more, through the above-mentioned step, conical head one can be fine insert in the soil and through two sealed sliding sleeves of electric putter removal with the feed pipe and let liquid fertilizer can be through going out liquid hole injection landscape plant's soil, simultaneously can also prevent earth from blockking up out the liquid hole, can effectually solve the problem of leaving in the reference case.
Description
Technical Field
The utility model belongs to the technical field of gardens fertilizer injection unit, specifically be a landscape plant soil fertilizer injection unit.
Background
The garden refers to a beautiful natural environment and a rest area which are created by applying engineering technology and artistic means in a certain region through the ways of reforming terrain, planting trees, flowers and plants, building buildings, arranging garden roads and the like, and the trees, the flowers and the plants in the garden need to be fertilized regularly, so that the normal growth of plants is ensured.
Disclose a landscape plant fertilization equipment as in utility model patent that publication number is CN210597168U, including the automobile body, be connected with the dead lever on the one end lateral wall of automobile body, be connected with the handle on the dead lever, all be connected with the support on the front and back end lateral wall of automobile body, articulated on the support have the rotor arm, and the lower extreme of rotor arm is connected with the sliding frame, and sliding connection has the sliding block in the sliding frame, and the sliding block is connected on first hydraulic stem, and first hydraulic stem articulates on the automobile body. The utility model overcomes prior art's is not enough, reasonable in design, and compact structure has solved current solid chemical fertilizer low-usage, and liquid chemical fertilizer can cause the problem that the utilization ratio is low equally if directly spraying simultaneously, the utility model discloses a simple structure combination makes directly carry liquid chemical fertilizer in soil, has reduced volatilizing of liquid chemical fertilizer, has improved the utilization ratio of chemical fertilizer, exports chemical fertilizer simultaneously through a plurality of delivery outlets moreover, has improved the efficiency of fertilization.
In the in-process of realizing this application, it has following problem to discover this technique, the device drives the rotor arm downswing through first hydraulic stem and inserts a plurality of spikes into the ground, make liquid fertilizer output insert in the ground, thereby prevent that liquid fertilizer from volatilizing, improve the utilization ratio of liquid fertilizer, but the device spike is more sharp-pointed with the rotor plate tip, cause spike and rotor plate to warp when the spike meets stone or other hard objects in inserting the ground very easily, thereby can influence the output of liquid fertilizer, provide a landscape plant soil fertilization equipment for this reason.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an: in order to solve the problem that the end parts of the nail and the rotating plate of the device are relatively sharp, when the nail is inserted into the ground and meets stones or other hard objects, the nail and the rotating plate are easy to deform, so that the output of liquid fertilizer is influenced, and the garden plant soil fertilizing equipment is provided.
The utility model adopts the technical scheme as follows: a garden plant soil fertilization device comprises a base plate, wherein a fertilizer box is fixedly mounted on the top surface of the base plate, a filling hopper is fixedly mounted on the top surface of the fertilizer box, a fixing plate is fixedly mounted on one side of the fertilizer box, two first electric push rods are fixedly mounted on the top surface of the fixing plate, a mounting plate is arranged on one side of the fertilizer box and located on the bottom surface of the fixing plate, the telescopic ends of the first electric push rods are fixed to the top surface of the mounting plate, two second electric push rods are fixedly mounted on the top surface of the mounting plate, two connecting holes corresponding to the two second electric push rods are formed in the top surface of the fixing plate, the second electric push rods penetrate through the connecting holes, a liquid supply box is fixedly mounted on the bottom surface of the mounting plate, two liquid supply tubes are fixedly mounted on the bottom surface of the liquid supply box, a first conical head is fixedly mounted on one end, away from the mounting plate, a plurality of liquid supply holes are formed in the outer wall surface of the liquid supply tube, a sealing sliding sleeve is connected to the outer wall surface of the liquid supply tube, a connecting block is fixedly mounted on the outer wall surface of the sealing sleeve, a second conical head is fixedly mounted on the connecting block, the bottom surface of the connecting block, the liquid supply tube is fixedly mounted on the telescopic end of the electric push rod is fixed to the top surface of the connecting block,
the top surface fixed mounting of fertilizer case has booster water pump, booster water pump's the end of intaking extends to the inside of fertilizer case, booster water pump's play water end fixed mounting has the connecting pipe, the one end of connecting pipe extends to the bottom surface and the welding of mounting panel are in the top surface of confession liquid box.
In a preferred embodiment, the top surface of the material filling hopper is rotatably connected with a protective door through a set hinge, and a handle is fixedly mounted on the top surface of the protective door.
In a preferred embodiment, a drain pipe is fixedly installed at the front side of the fertilizer box, and a one-way valve is arranged on the outer surface of the drain pipe.
In a preferred embodiment, the top surface fixed mounting of fertilizer case has control panel, electric putter one, electric putter two with the inside control element electric connection of control panel, the fertilizer case is kept away from one side fixed mounting of fixed plate has the battery box, just the inside of battery box is provided with the battery.
In a preferred embodiment, a liquid level observation window is fixedly arranged on the front side of the fertilizer box.
In a preferred embodiment, a plurality of universal wheels are fixedly mounted on the periphery of the bottom surface of the bottom plate.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses in, owing to adopted above-mentioned this scheme, user of service starts electric putter two, electric putter two drive sealed sliding sleeve downstream, sealed sliding sleeve downstream through setting up, be convenient for remove sealed to going out the liquid hole, it drives the inside liquid fertilizer of can fertilizer through the inside of connecting pipe entering feed box and feed pipe and through going out the outside blowout in liquid hole to increase the water pump this moment, user of service only needs to start electric putter two after the operation is accomplished, make electric putter two reset and can accomplish once more sealed to going out the liquid hole, convenient operation once more, through the above-mentioned step, conical head one can be fine insert in soil with the feed pipe and drive sealed sliding sleeve through electric putter two and remove and let liquid fertilizer can go out the soil that liquid hole injected into landscape plant in, can also prevent earth jam simultaneously and go out the liquid hole.
2. The utility model discloses in, owing to adopted above-mentioned this scheme, through the drain pipe that sets up, convenient to use personnel open the check valve with the inside unnecessary liquid fertilizer of can fertilizer discharge, simultaneously, can discharge the log raft after wasing when user of service rinses the can fertilizer, increase the convenience.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the waste bin of the present invention;
fig. 3 is a schematic view of the liquid supply pipe of the present invention.
The labels in the figure are: 1. a base plate; 2. a fertilizer box; 3. a material injection hopper; 4. a fixing plate; 5. an electric push rod I; 6. mounting a plate; 7. a second electric push rod; 8. connecting holes; 9. a liquid supply cartridge; 10. a liquid supply tube; 11. a first conical head; 12. a liquid outlet hole; 13. sealing the sliding sleeve; 14. connecting blocks; 15. a second conical head; 16. a booster water pump; 17. a connecting pipe; 18. a control panel; 19. a protective door; 20. a drain pipe; 21. a battery box; 22. a liquid level observation window; 23. a universal wheel.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The embodiment is as follows:
with reference to figures 1-3 of the drawings,
referring to fig. 1, the garden plant soil fertilization device comprises a bottom plate 1, wherein a plurality of universal wheels 23 are fixedly arranged on the periphery of the bottom surface of the bottom plate 1; through the universal wheel 23 that sets up, be convenient for drive bottom plate 1 and remove, conveniently fertilize to the plant in the gardens.
Referring to fig. 1 and 2, a fertilizer box 2 is fixedly mounted on the top surface of a bottom plate 1, a material filling hopper 3 is fixedly mounted on the top surface of the fertilizer box 2, and a liquid level observation window 22 is fixedly mounted on the front side of the fertilizer box 2; through the notes hopper 3 that sets up, the inside of fertilizer can 2 is injected into with liquid fertilizer to the user of being convenient for, makes things convenient for subsequent use, and through the liquid level observation window 22 that sets up, the user of being convenient for observes the liquid level of the inside liquid fertilizer of fertilizer can 2.
Referring to fig. 1, 2 and 3, a fixing plate 4 is fixedly installed at one side of a fertilizer box 2, two electric push rods one 5 are fixedly installed at the top surface of the fixing plate 4, an installation plate 6 is arranged at the bottom surface of the fixing plate 4 at one side of the fertilizer box 2, and the telescopic ends of the two electric push rods one 5 are both fixed with the top surface of the installation plate 6; through the fixed plate 4 that sets up, be convenient for install fixedly to electric putter one 5, it is fixed with the top surface of mounting panel 6 to hold through the flexible of the electric putter one 5 that sets up, is convenient for drive mounting panel 6 and goes up and down, conveniently fertilizes landscape plant soil.
Referring to fig. 1 and 2, two electric push rods 7 are fixedly mounted on the top surface of the mounting plate 6, and two connecting holes 8 corresponding to the electric push rods 7 are formed in the top surface of the fixing plate 4, and the electric push rods 7 penetrate through the connecting holes 8; through the mounting plate 6 that sets up, be convenient for install fixedly to electric putter two 7, through the connecting hole 8 that sets up, the electric putter two 7 of being convenient for pass inside it, reduce the interval between fixed plate 4 and the mounting plate 6.
Referring to fig. 1, 2 and 3, a liquid supply box 9 is fixedly mounted on the bottom surface of the mounting plate 6, two liquid supply pipes 10 are fixedly mounted on the bottom surface of the liquid supply box 9, and a first conical head 11 is fixedly mounted at one end of each of the two liquid supply pipes 10 away from the mounting plate 6; the liquid supply pipe 10 is convenient to install through the arranged liquid supply box 9, and the arranged conical head 11 is convenient to drive the liquid supply pipe 10 to be inserted into the ground.
Referring to fig. 1, 2 and 3, the outer wall surface of the liquid supply pipe 10 is provided with a plurality of liquid outlet holes 12, the outer wall surface of the liquid supply pipe 10 is slidably connected with a sealing sliding sleeve 13, the outer wall surface of the sealing sliding sleeve 13 is fixedly provided with a connecting block 14, the bottom surface of the connecting block 14 is fixedly provided with a second conical head 15, and the telescopic end of the second electric push rod 7 is fixed with the top surface of the connecting block 14; through the play liquid hole 12 that sets up, the liquid fertilizer of being convenient for flows out and fertilizes plant soil, through the sealed sliding sleeve 13 that sets up, is convenient for plug up play liquid hole 12 for open when not needing when needing and close, through the conical head two 15 that sets up, be convenient for better open sealed sliding sleeve 13.
Referring to fig. 1 and 2, a booster water pump 16 is fixedly mounted on the top surface of the fertilizer box 2, a water inlet end of the booster water pump 16 extends into the fertilizer box 2, a water outlet end of the booster water pump 16 is fixedly mounted with a connecting pipe 17, and one end of the connecting pipe 17 extends to the bottom surface of the mounting plate 6 and is welded on the top surface of the liquid supply box 9; the user starts the electric push rod I5, the electric push rod I5 starts to move downwards to drive the mounting plate 6 and the electric push rod II 7 to move downwards, the liquid supply pipe 10 and the conical head I11 enter the soil through the downward movement of the mounting plate 6 and the electric push rod II 7, when the liquid supply pipe 10 and the conical head I11 completely enter, the user closes the electric push rod I5, then the user starts the electric push rod II 7, the electric push rod II 7 drives the sealing sliding sleeve 13 to move downwards, the sealing of the liquid outlet hole 12 is conveniently released through the downward movement of the sealing sliding sleeve 13, the water pump 16 is additionally arranged to drive the liquid fertilizer in the fertilizer box 2 to enter the liquid supply box 9 and the liquid supply pipe 10 through the connecting pipe 17 and to be sprayed out through the liquid outlet hole 12, after the operation is completed, the user only needs to start the electric push rod II 7, the electric push rod II 7 is reset to complete the sealing of the liquid outlet hole 12 again, convenient operation once more, through the above steps, the first conical head 11 can insert the liquid supply pipe 10 into the soil well and drive the sealed sliding sleeve 13 to move through the second electric push rod 7 to make the liquid fertilizer injected into the soil of the garden plants through the liquid outlet 12, the diameter of the first conical head 11 is larger than that of the liquid supply pipe 10, when the sealed sliding sleeve 13 moves downwards, the outside of the liquid outlet 12 gathers soil and a small amount of soil enters the liquid outlet 12, when the liquid fertilizer is sprayed out through the liquid outlet 12 driven by the booster pump 16, a small amount of soil is sprayed out along with the fertilizer, after the liquid fertilizer is sprayed out, the user can firstly drive the second electric push rod 7 to drive the sealed sliding sleeve 13 to move upwards to seal the liquid outlet 12, then the pump 16 is added when closed, so that the soil can not enter the liquid outlet 12, the telescopic stroke of the electric push rod II 7 can be adjusted.
Referring to fig. 1, the top surface of the injection hopper 3 is rotatably connected with a protective door 19 through a hinge, and a handle is fixedly mounted on the top surface of the protective door 19; by arranging the protective door 19, the protective door 19 can be closed when the device is not used, and sundries are prevented from entering the inside of the fertilizer box 1 as much as possible.
Referring to fig. 1, a drain pipe 20 is fixedly installed at the front side of a fertilizer box 2, and a check valve is arranged on the outer surface of the drain pipe 20; through the drain pipe 20 that sets up, be convenient for discharge the inside unnecessary liquid fertilizer of fertilizer case 2, simultaneously, can increase the convenience with the log raft after wasing when the user of service washs fertilizer case 2.
Referring to fig. 1, a control panel 18 is fixedly installed on the top surface of the fertilizer box 2, a first electric push rod 5 and a second electric push rod 7 are electrically connected with control elements inside the control panel 18, a battery box 21 is fixedly installed on one side of the bottom plate 1 far away from the fixing plate 4, and a storage battery is arranged inside the battery box 21; through the electric putter one 5 that sets up, the control element electric connection of electric putter two 7 and control panel 18 inside, the start of the user of being convenient for control electric putter one 5, electric putter two 7 stops, and the control element of control panel 18 inside can be for PLC controller or singlechip etc. through the battery box 21 that sets up, is convenient for deposit the battery, through the battery that sets up, is convenient for supply power to the consumer.
The application principle of this application landscape plant soil fertilization equipment embodiment is: the user firstly moves the garden plant edge needing fertilization with the bottom plate 1, then the direction and the angle of the fertilizer box 2 are adjusted, at the moment, the user starts the first electric push rod 5, the first electric push rod 5 starts the downward movement to drive the mounting plate 6, the second electric push rod 7 moves downward, the downward movement of the mounting plate 6 and the second electric push rod 7 is realized through the arrangement, the liquid supply pipe 10 and the first conical head 11 enter the soil, after the liquid supply pipe 10 and the first conical head 11 completely enter the soil, the user closes the first electric push rod 5 at the moment, then the user starts the second electric push rod 7, the second electric push rod 7 drives the sealing sliding sleeve 13 to move downward, the sealing of the liquid outlet hole 12 is facilitated to be relieved through the downward movement of the sealing sliding sleeve 13, at the moment, the liquid fertilizer which drives the inside of the fertilizer box 2 is driven by the water pump 16 to enter the liquid supply box 9 and the liquid supply pipe 10 through the connecting pipe 17 and is sprayed out through the liquid outlet hole 12, after the operation is completed, the user only needs to start the second electric push rod 7 after the operation, the second electric push rod 7 is reset, the problem that the liquid supply pipe can be inserted into the soil and the soil can be prevented from being blocked by the soil when the soil, the soil can be effectively prevented from being injected into the soil by the soil when the soil, the soil can be prevented by the soil.
Through the drain pipe 20 that sets up, the user of being convenient for opens the check valve and discharges the inside unnecessary liquid fertilizer of fertilizer case 2, simultaneously, can increase the convenience with the log raft after wasing when user of being convenient for when wasing fertilizer case 2.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (6)
1. The utility model provides a landscape plant soil fertilization equipment, includes bottom plate (1), its characterized in that: the top surface fixed mounting of bottom plate (1) has fertilizer box (2), the top surface fixed mounting of fertilizer box (2) has hopper (3) of annotating, one side fixed mounting of fertilizer box (2) has fixed plate (4), the top surface fixed mounting of fixed plate (4) has two electric putter one (5), one side of fertilizer box (2) is located the bottom surface of fixed plate (4) is provided with mounting panel (6), two the flexible end of electric putter one (5) all with the top surface of mounting panel (6) is fixed mutually, the top surface fixed mounting of mounting panel (6) has two electric putter two (7), the top surface of fixed plate (4) seted up two with connecting hole (8) that electric putter two (7) are corresponding, electric putter two (7) pass the inside of connecting hole (8), the bottom surface fixed mounting of mounting panel (6) has feed box (9), just the bottom surface fixed mounting of feed box (9) has two feed pipes (10), and two feed pipes (10) are kept away from the equal fixed mounting panel's (6) of one end has one (11), the outer fixed mounting wall face of feed pipe wall face has a plurality of awl (10) and sets up the outer sealed liquid feed pipe (13) outer wall face (13) of sliding sleeve (13), and the outer sealed liquid feed pipe (13) of connecting block (13) outer wall (13), a second conical head (15) is fixedly arranged on the bottom surface of the connecting block (14), the telescopic end of the second electric push rod (7) is fixed with the top surface of the connecting block (14),
the top surface fixed mounting of fertilizer case (2) has booster pump (16), the end of intaking of booster pump (16) extends to the inside of fertilizer case (2), the play water end fixed mounting of booster pump (16) has connecting pipe (17), the one end of connecting pipe (17) extends to the bottom surface and the welding of mounting panel (6) are in the top surface of confession liquid box (9).
2. Landscape plant soil fertilization equipment of claim 1, wherein: the top surface of the material injection hopper (3) is rotatably connected with a protective door (19) through a set hinge, and a handle is fixedly mounted on the top surface of the protective door (19).
3. Landscape plant soil fertilization equipment as defined in claim 1, wherein: the front side fixed mounting of fertilizer case (2) has drain pipe (20), just the surface of drain pipe (20) is provided with the check valve.
4. Landscape plant soil fertilization equipment of claim 1, wherein: the top surface fixed mounting of fertilizer case (2) has control panel (18), electric putter one (5), electric putter two (7) with the inside control element electric connection of control panel (18), fertilizer case (2) are kept away from one side fixed mounting of fixed plate (4) has battery box (21), just the inside of battery box (21) is provided with the battery.
5. Landscape plant soil fertilization equipment of claim 1, wherein: the front side of the fertilizer box (2) is fixedly provided with a liquid level observation window (22).
6. Landscape plant soil fertilization equipment of claim 1, wherein: a plurality of universal wheels (23) are fixedly arranged on the periphery of the bottom surface of the bottom plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222887000.0U CN218337162U (en) | 2022-10-31 | 2022-10-31 | Landscape plant soil fertilization equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222887000.0U CN218337162U (en) | 2022-10-31 | 2022-10-31 | Landscape plant soil fertilization equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218337162U true CN218337162U (en) | 2023-01-20 |
Family
ID=84898197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222887000.0U Expired - Fee Related CN218337162U (en) | 2022-10-31 | 2022-10-31 | Landscape plant soil fertilization equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218337162U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118104450A (en) * | 2024-04-17 | 2024-05-31 | 西北农林科技大学 | A depth-adjustable dryland corn fertilization device |
| CN118830378A (en) * | 2024-08-19 | 2024-10-25 | 武义拳头工具有限公司 | Fertilizing equipment |
-
2022
- 2022-10-31 CN CN202222887000.0U patent/CN218337162U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118104450A (en) * | 2024-04-17 | 2024-05-31 | 西北农林科技大学 | A depth-adjustable dryland corn fertilization device |
| CN118104450B (en) * | 2024-04-17 | 2025-07-11 | 西北农林科技大学 | Dry land corn fertilizing device with adjustable depth |
| CN118830378A (en) * | 2024-08-19 | 2024-10-25 | 武义拳头工具有限公司 | Fertilizing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20230120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |