CN210641301U - Strong anti-blocking type no-tillage combined seed and fertilizer drill - Google Patents
Strong anti-blocking type no-tillage combined seed and fertilizer drill Download PDFInfo
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- CN210641301U CN210641301U CN201921643437.1U CN201921643437U CN210641301U CN 210641301 U CN210641301 U CN 210641301U CN 201921643437 U CN201921643437 U CN 201921643437U CN 210641301 U CN210641301 U CN 210641301U
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Abstract
The utility model discloses a prevent stifled type no-tillage combined seed and fertilizer drill by force, concretely relates to agricultural machinery technical field, which comprises a mounting bracket, one side of mounting bracket is equipped with a plurality of operation unit, the operation unit includes the link, the one end of link below is equipped with prevents stifled device, prevent stifled device including the connecting axle, the connecting axle includes the axis body, the spline groove has been seted up to the inside wall of axis body, a plurality of adjustment groove has been seted up to the lateral wall of axis body one end. The utility model discloses a be equipped with mounting bracket and operation unit, make up into an operation unit with single link, prevent stifled device, ditching device, suppression device, be favorable to the operation unit that how many purchases in buyer can be according to the field, then the equipment is in the same place, simultaneously, also can adjust the interval between the operation unit, make the strong no-tillage combined seed and fertilizer drill of preventing stifled type can adapt to different crops, enlarge application range.
Description
Technical Field
The utility model relates to the technical field of agricultural machinery, more specifically say, the utility model relates to a prevent stifled type no-tillage combined seed and fertilizer drill by force.
Background
The no-tillage combined seed and fertilizer drill is mainly used for fields after straw chopping and returning to fields, and compared with the traditional farming and planting mode, the no-tillage combined seed and fertilizer drill can complete operations of straw chopping, stubble cleaning, ditching, fertilizer application, seeding, pressing and the like at one time, and has the characteristics of low cost, labor saving and high working efficiency.
The same model of current prevent stifled type no-tillage combined seed and fertilizer drill by force all is fixed size, and the buyer can not purchase the stifled type no-tillage combined seed and fertilizer drill by force of suitable size according to how much in field, also can not adjust according to the seeding interval of different crops for application range diminishes.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art's above-mentioned defect, the embodiment of the utility model provides a prevent stifled type no-tillage combined seed and fertilizer drill by force, through being equipped with mounting bracket and operation unit, with single link, prevent stifled device, ditching device, suppression device makes up into an operation unit, be favorable to the operation unit that how many purchasers can purchase suitable quantity according to the field, then the equipment is in the same place, and simultaneously, also can adjust the interval between the operation unit, make prevent stifled type no-tillage combined seed and fertilizer drill by force can adapt to different crops, enlarge application range.
In order to achieve the above object, the utility model provides a following technical scheme: a strong anti-blocking no-tillage combined seed and fertilizer drill comprises a mounting frame, wherein a plurality of operation units are arranged on one side of the mounting frame, each operation unit comprises a connecting frame, an anti-blocking device is arranged at one end below the connecting frame, each anti-blocking device comprises a connecting shaft, each connecting shaft comprises a shaft body, a spline groove is formed in the inner side wall of each shaft body, a plurality of adjusting grooves are formed in the outer side wall of one end of each shaft body, the adjusting grooves are uniformly distributed, the lengths of the adjusting grooves are sequentially increased clockwise, an adjusting block is arranged at the outer edge of the other end of each shaft body, one end of each adjusting block is fixedly connected with the end wall of each shaft body, a spline shaft is arranged in the middle of the other end of each shaft body, and one;
the other end of axis body is equipped with the head rod, the head rod bottom cover is established on the lateral wall of axis body, and the inside wall of head rod bottom rotates with the lateral wall of axis body to be connected, the upper end of head rod and the lower extreme fixed connection of link, the outside of the axis body other end is equipped with the cutters who is close to adjustment tank one side.
In a preferred embodiment, a ditching device is arranged in the middle of the lower portion of the connecting frame, the ditching device comprises a second connecting rod, a ditcher is arranged below the second connecting rod, the lower end of the second connecting rod is fixedly connected with the upper end of the ditcher, and the upper end of the second connecting rod is fixedly connected with the lower end of the connecting frame.
In a preferred embodiment, the one end of link below is equipped with keeps away from the suppression device who prevents stifled device one side, suppression device includes the support frame, the lower extreme of support frame is equipped with the suppression wheel, the upper end of support frame and the one end fixed mounting of link, the both sides of suppression wheel are rotated with the lower extreme of support frame and are connected.
In a preferred embodiment, the fixed slot that is close to anti-blocking device one side is all seted up to the top and the below of link one end, the bottom of mounting bracket one end is equipped with the fixed block, the lateral wall of fixed block and the end wall fixed connection of mounting bracket, the top of fixed block is equipped with the fixed plate, the inside wall of link below fixed slot and the lateral wall swing joint of fixed block upper end, the inside wall of link top fixed slot and the lateral wall swing joint of fixed plate lower extreme, the fixed block passes through the bolt with the fixed plate and can dismantle and be connected.
In a preferred embodiment, a fertilizing and seeding box is arranged above the mounting frame, the lower end of the fertilizing and seeding box is fixedly connected with the upper end of the mounting frame, a hanging plate far away from one side of the operation unit is arranged at one end of the mounting frame, and one end of the hanging plate is fixedly connected with the end wall of the mounting frame.
In a preferred embodiment, the cutter device comprises a cutter disc, the inner side wall of the cutter disc is fixedly connected with the outer side wall of the shaft body, an adjusting ring is arranged on the inner side of the cutter disc, and the inner side wall of the adjusting ring is rotatably connected with the outer side wall of the middle part of the cutter disc.
In a preferred embodiment, the outside of blade disc is equipped with a plurality of cutter, the one end of cutter runs through the lateral wall of blade disc and extends to the inboard of blade disc, the inboard of blade disc is equipped with a plurality of adjusting lever, the one end of adjusting lever is rotated with the one end of cutter and is connected, the other end of adjusting lever is rotated with the lateral wall of adjusting ring and is connected.
In a preferred embodiment, one side of blade disc is equipped with the dwang, the outer fringe of blade disc one side is equipped with a plurality of screw hole outward, the one end of dwang and the one end fixed connection of adjustment ring, the other end of dwang passes through bolt, screw hole and can dismantle with the blade disc and be connected.
The utility model discloses a technological effect and advantage:
1. the utility model is provided with the mounting frame and the operation unit, and combines the single connecting frame, the anti-blocking device, the ditching device and the pressing device into one operation unit, compared with the prior art, the utility model is beneficial to a buyer to buy operation units with proper quantity according to the field and then assemble the operation units together, and simultaneously, the distance between the operation units can be adjusted, so that the strong anti-blocking type no-tillage combined seed and fertilizer drill can adapt to different crops, and the application range is enlarged;
2. the utility model discloses a be equipped with and prevent stifled device, rotate the length that the cutter stretches out that the adjusting ring can adjust, compare with prior art, be favorable to adjusting the degree of depth of no-tillage combined seed and fertilizer drill cutter to the degree of depth that adapts to different farming seeding.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a side view of the present invention.
Fig. 4 is a first side view of the whole structure of the working unit of the present invention.
Fig. 5 is a second side view of the whole structure of the working unit of the present invention.
Fig. 6 is an enlarged view of a structure shown in fig. 5 according to the present invention.
Fig. 7 is a schematic structural view of the connecting shaft of the present invention.
Fig. 8 is an enlarged view of a structure at B in fig. 4 according to the present invention.
Fig. 9 is a front view of the present invention.
Fig. 10 is an enlarged view of the structure at C in fig. 9 according to the present invention.
The reference signs are: the device comprises a mounting frame 1, a working unit 2, a connecting frame 3, a blocking-proof device 4, a connecting shaft 41, a shaft 411, a spline groove 412, an adjusting groove 413, an adjusting block 414, a spline shaft 415, a first connecting rod 42, a cutter device 43, a cutter head 431, an adjusting ring 432, a cutter 433, an adjusting rod 434, a threaded hole 435, a rotary rod 436, a ditching device 5, a second connecting rod 51, a ditcher 52, a pressing device 6, a supporting frame 61, a pressing wheel 62, a fixing groove 7, a fixing block 8, a fixing plate 9, a fertilizing and seeding box 100 and a suspension plate 110.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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 work belong to the protection scope of the present invention.
The utility model provides a strong anti-blocking no-tillage combined seed and fertilizer drill, which comprises a mounting rack 1, wherein one side of the mounting rack 1 is provided with a plurality of operation units 2, the operation unit 2 comprises a connecting frame 3, one end of the lower part of the connecting frame 3 is provided with an anti-blocking device 4, the anti-blocking device 4 comprises a connecting shaft 41, the connecting shaft 41 comprises a shaft body 411, the inner side wall of the shaft body 411 is provided with a spline groove 412, a plurality of adjusting grooves 413 are formed on the outer side wall of one end of the shaft body 411, the plurality of adjusting grooves 413 are uniformly distributed, the lengths of the plurality of adjusting grooves 413 are increased clockwise, an adjusting block 414 is arranged at the outer edge of the other end of the shaft body 411, one end of the adjusting block 414 is fixedly connected with the end wall of the shaft body 411, a spline shaft 415 is arranged in the middle of the other end of the shaft body 411, and one end of the spline shaft 415 is fixedly connected with the end wall of the shaft body 411;
the other end of the shaft body 411 is provided with a first connecting rod 42, the bottom end of the first connecting rod 42 is sleeved on the outer side wall of the shaft body 411, the inner side wall of the bottom end of the first connecting rod 42 is rotatably connected with the outer side wall of the shaft body 411, the upper end of the first connecting rod 42 is fixedly connected with the lower end of the connecting frame 3, and the outer side of the other end of the shaft body 411 is provided with a cutter device 43 close to one side of the adjusting groove 413.
The middle part below the connecting frame 3 is provided with a ditching device 5, the ditching device 5 comprises a second connecting rod 51, a ditcher 52 is arranged below the second connecting rod 51, the lower end of the second connecting rod 51 is fixedly connected with the upper end of the ditcher 52, and the upper end of the second connecting rod 51 is fixedly connected with the lower end of the connecting frame 3.
One end of link 3 below is equipped with the suppression device 6 of keeping away from 4 one sides of preventing blocking up device, suppression device 6 includes support frame 61, the lower extreme of support frame 61 is equipped with suppression wheel 62, the upper end of support frame 61 and the one end fixed mounting of link 3, the both sides of suppression wheel 62 are rotated with the lower extreme of support frame 61 and are connected.
Fixed slot 7 that is close to anti-blocking device 4 one side is all seted up to the top and the below of 3 one ends of link, the bottom of 1 one end of mounting bracket is equipped with fixed block 8, the lateral wall of fixed block 8 and the end wall fixed connection of mounting bracket 1, the top of fixed block 8 is equipped with fixed plate 9, the inside wall of 3 below fixed slots 7 of link and the lateral wall swing joint of 8 upper ends of fixed block, the inside wall of 3 top fixed slots 7 of link and the lateral wall swing joint of 9 lower extremes of fixed plate, fixed block 8 can be dismantled through the bolt with fixed plate 9 and be connected.
The top of mounting bracket 1 is equipped with fertilizing and seeding case 100, fertilizing and seeding case 100's lower extreme and mounting bracket 1's upper end fixed connection, the one end of mounting bracket 1 is equipped with the board 110 that hangs of keeping away from operation unit 2 one side, the one end of hanging the board 110 and mounting bracket 1's end wall fixed connection.
As shown in fig. 1 to 10, the embodiment specifically is as follows: the manufacturer assembles according to the number of the operation units 2 purchased by the purchaser, when assembling, firstly, one operation unit 2 is taken out, then the fixing groove 7 below one end of the connecting frame 3 is put above the fixing block 8, then the operation unit 2 is pushed to one end, then the operation unit 2 is taken out and put above the fixing block 8 by the same method, then the adjustment is carried out according to the distance between the adjacent operation units 2 required by the purchaser, meanwhile, the purchaser can adjust by himself/herself after purchasing, when adjusting, an adjusting groove 413 with proper length is selected, if the distance between the operation units 2 is required to be larger, the adjusting groove 413 with shorter length is selected, if the distance between the operation units 2 is required to be smaller, the adjusting groove 413 with longer length is selected, after selecting, the adjusting block 414 on the second operation unit 2 is aligned with the selected cutter disc 431 and inserted, and at this time, the spline shaft 415 also enters the inside of the shaft body 411 to be clamped with the spline groove 412, then, other operation units 2 are assembled by using the same method, after the assembly is completed, the lower end of the fixing plate 9 is placed in the fixing groove 7 above the connecting frame 3, then the fixing block 8 and the fixing plate 9 are connected through bolts, the fixing block 8 and the fixing plate 9 clamp the connecting frame 3, the operation units 2 with the number to be purchased are installed, then the driving motor can be installed above the connecting frame 3, the shaft body 411 with the edge is driven through belt transmission, and finally the fertilizing and seeding box 100 and the suspension plate 110 are installed, a manufacturer only needs to produce the installation frame 1, the fixing block 8, the fixing plate 9, the fertilizing and seeding box 100 and the suspension plate 110 with different sizes in advance, so that the buyer can purchase the operation units 2 with the proper number according to the number of the operation units, then the operation units are assembled together, and meanwhile, the distance between the operation units 2 can also be adjusted, make stifled type no-tillage combined seed and fertilizer drill of preventing by force can adapt to different crops, enlarge application range, and this embodiment has specifically solved the current same model of the stifled type no-tillage combined seed and fertilizer drill of preventing by force and all is fixed size, and the buyer can not purchase the stifled type no-tillage combined seed and fertilizer drill of preventing by force of appropriate size according to what in the field, also can not adjust according to the seeding interval in different crops for application range diminishes problem.
The outside of blade disc 431 is equipped with a plurality of cutter 433, the one end of cutter 433 runs through the lateral wall of blade disc 431 and extends to the inboard of blade disc 431, the inboard of blade disc 431 is equipped with a plurality of adjusting lever 434, the one end of adjusting lever 434 is rotated with the one end of cutter 433 and is connected, the other end of adjusting lever 434 is rotated with the lateral wall of adjusting ring 432 and is connected.
One side of blade disc 431 is equipped with dwang 436, the outer fringe of blade disc 431 one side is equipped with a plurality of screw hole 435 outward, the one end of dwang 436 and the one end fixed connection of adjustment ring 432, the other end of dwang 436 passes through bolt, screw hole 435 and blade disc 431 detachable connection.
As shown in fig. 1 and fig. 5 to 6, the embodiment specifically is: when the extension length of the cutter 433 is adjusted, the bolt is taken down, the adjusting rod 434 is detached from the threaded hole 435, the adjusting ring 432 is rotated clockwise or anticlockwise, the adjusting ring 432 drives the rotating rod 436 to rotate, the rotating rod 436 drives the cutter 433 to move towards the inner side or the outer side of the cutter 431, the extension length of the cutter 433 is adjusted, after adjustment is completed, the bolt is connected with the corresponding threaded hole 435, the adjusting rod 434 is fixed with the cutter 431, the depth of the cutter 433 of the no-tillage combined seed and fertilizer drill is adjusted conveniently, the depth of sowing is adapted to different agricultural operations, and the implementation mode specifically solves the problem that the depth of the existing strong anti-blocking type no-tillage combined seed and fertilizer drill cannot be adjusted and cannot be adapted to the sowing depth of different agricultural operations.
The utility model discloses the theory of operation:
referring to the accompanying drawings 1-10 of the specification, a manufacturer assembles the operation units 2 according to the number of operation units 2 purchased by a purchaser, firstly takes one operation unit 2, then puts a fixing groove 7 below one end of a connecting frame 3 above a fixing block 8, then pushes the fixing groove to one end, then takes one operation unit 2 out, puts the operation unit 2 above the fixing block 8 by using the same method, then adjusts the interval between the adjacent operation units 2 according to the requirement of the purchaser, and can adjust the operation unit by itself after purchasing, selects an adjusting groove 413 with proper length during the adjustment, selects an adjusting groove 413 with shorter length if the interval between the operation units 2 is larger, selects an adjusting groove 413 with longer length if the interval between the operation units 2 is smaller, and inserts an adjusting block 414 on the second operation unit 2 to align with the selected cutter disc 431 after the selection, at this time, the spline shaft 415 also enters the inside of the shaft body 411 to be clamped with the spline groove 412, then other operation units 2 are assembled by using the same method, after the assembly is completed, the lower end of the fixing plate 9 is placed in the fixing groove 7 above the connecting frame 3, then the fixing block 8 and the fixing plate 9 are connected through the bolt, so that the connecting frame 3 is clamped by the fixing block 8 and the fixing plate 9, and the operation units 2 to be purchased are installed;
further, referring to fig. 1 and fig. 5 to 6 of the specification, when the extension length of the cutter 433 is adjusted, the bolt is removed, the adjusting rod 434 is detached from the threaded hole 435, then the adjusting ring 432 is rotated clockwise or counterclockwise, the adjusting ring 432 drives the rotating rod 436 to rotate, the rotating rod 436 drives the cutter 433 to move towards the inner side or the outer side of the cutter 431, so as to adjust the extension length of the cutter 433, and after the adjustment is completed, the bolt is connected with the corresponding threaded hole 435 to fix the adjusting rod 434 with the cutter 431.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a prevent stifled type no-tillage combined seed and fertilizer drill by force, includes mounting bracket (1), its characterized in that: one side of the mounting rack (1) is provided with a plurality of operation units (2), the operation units (2) comprise connecting racks (3), an anti-blocking device (4) is arranged at one end of the lower part of the connecting frame (3), the anti-blocking device (4) comprises a connecting shaft (41), the connecting shaft (41) comprises a shaft body (411), the inner side wall of the shaft body (411) is provided with a spline groove (412), a plurality of adjusting grooves (413) are arranged on the outer side wall of one end of the shaft body (411), the plurality of adjusting grooves (413) are uniformly distributed, the lengths of the plurality of adjusting grooves (413) are increased clockwise, an adjusting block (414) is arranged at the outer edge of the other end of the shaft body (411), one end of the adjusting block (414) is fixedly connected with the end wall of the shaft body (411), a spline shaft (415) is arranged in the middle of the other end of the shaft body (411), and one end of the spline shaft (415) is fixedly connected with the end wall of the shaft body (411);
the other end of axis body (411) is equipped with head rod (42), the lateral wall of axis body (411) is established to head rod (42) bottom cover, and the lateral wall of the inside wall of head rod (42) bottom and axis body (411) rotates to be connected, the upper end of head rod (42) and the lower extreme fixed connection of link (3), the outside of the axis body (411) other end is equipped with cutter device (43) that are close to adjustment groove (413) one side.
2. The strong anti-blocking no-tillage combined seed and fertilizer drill of claim 1, characterized in that: the ditching device (5) is arranged in the middle of the lower portion of the connecting frame (3), the ditching device (5) comprises a second connecting rod (51), a ditcher (52) is arranged below the second connecting rod (51), the lower end of the second connecting rod (51) is fixedly connected with the upper end of the ditcher (52), and the upper end of the second connecting rod (51) is fixedly connected with the lower end of the connecting frame (3).
3. The strong anti-blocking no-tillage combined seed and fertilizer drill of claim 1, characterized in that: one end of link (3) below is equipped with and keeps away from suppression device (6) of preventing blocking up device (4) one side, suppression device (6) are including support frame (61), the lower extreme of support frame (61) is equipped with suppression wheel (62), the upper end of support frame (61) and the one end fixed mounting of link (3), the both sides of suppression wheel (62) are rotated with the lower extreme of support frame (61) and are connected.
4. The strong anti-blocking no-tillage combined seed and fertilizer drill of claim 1, characterized in that: fixed slot (7) that are close to prevent blocking up device (4) one side are all seted up to the top and the below of link (3) one end, the bottom of mounting bracket (1) one end is equipped with fixed block (8), the lateral wall of fixed block (8) and the end wall fixed connection of mounting bracket (1), the top of fixed block (8) is equipped with fixed plate (9), the inside wall of link (3) below fixed slot (7) and the lateral wall swing joint of fixed block (8) upper end, the inside wall of link (3) top fixed slot (7) and the lateral wall swing joint of fixed plate (9) lower extreme, fixed block (8) can be dismantled through the bolt with fixed plate (9) and be connected.
5. The strong anti-blocking no-tillage combined seed and fertilizer drill of claim 1, characterized in that: the top of mounting bracket (1) is equipped with fertilizing and seeding case (100), the lower extreme of fertilizing and seeding case (100) and the upper end fixed connection of mounting bracket (1), the one end of mounting bracket (1) is equipped with and keeps away from hanging board (110) of operation unit (2) one side, the one end of hanging board (110) and the end wall fixed connection of mounting bracket (1).
6. The strong anti-blocking no-tillage combined seed and fertilizer drill of claim 1, characterized in that: cutter device (43) includes blade disc (431), the lateral wall fixed connection of the inside wall of blade disc (431) and axis body (411), the inboard of blade disc (431) is equipped with adjusting ring (432), the inside wall of adjusting ring (432) rotates with the lateral wall at blade disc (431) middle part to be connected.
7. The strong anti-blocking no-tillage combined seed and fertilizer drill of claim 6, characterized in that: the outside of blade disc (431) is equipped with a plurality of cutter (433), the one end of cutter (433) runs through the inboard that the lateral wall of blade disc (431) extended to blade disc (431), the inboard of blade disc (431) is equipped with a plurality of adjusting lever (434), the one end of adjusting lever (434) is rotated with the one end of cutter (433) and is connected, the other end of adjusting lever (434) is rotated with the lateral wall of adjusting ring (432) and is connected.
8. The strong anti-blocking no-tillage combined seed and fertilizer drill of claim 7, characterized in that: one side of blade disc (431) is equipped with dwang (436), the outer fringe of blade disc (431) one side is equipped with a plurality of screw hole (435) outward, the one end of dwang (436) and the one end fixed connection of adjusting ring (432), the other end of dwang (436) passes through bolt, screw hole (435) and can dismantle with blade disc (431) and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921643437.1U CN210641301U (en) | 2019-09-29 | 2019-09-29 | Strong anti-blocking type no-tillage combined seed and fertilizer drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921643437.1U CN210641301U (en) | 2019-09-29 | 2019-09-29 | Strong anti-blocking type no-tillage combined seed and fertilizer drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210641301U true CN210641301U (en) | 2020-06-02 |
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ID=70807125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921643437.1U Expired - Fee Related CN210641301U (en) | 2019-09-29 | 2019-09-29 | Strong anti-blocking type no-tillage combined seed and fertilizer drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210641301U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113950899A (en) * | 2021-12-06 | 2022-01-21 | 安徽宏翔农业机械有限公司 | Adjustable ditching device |
-
2019
- 2019-09-29 CN CN201921643437.1U patent/CN210641301U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113950899A (en) * | 2021-12-06 | 2022-01-21 | 安徽宏翔农业机械有限公司 | Adjustable ditching device |
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Granted publication date: 20200602 Termination date: 20200929 |
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| CF01 | Termination of patent right due to non-payment of annual fee |