CN214545392U - Prevent twining careless rotary blade suitable for stereoplasm soil - Google Patents
Prevent twining careless rotary blade suitable for stereoplasm soil Download PDFInfo
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- CN214545392U CN214545392U CN202120673821.7U CN202120673821U CN214545392U CN 214545392 U CN214545392 U CN 214545392U CN 202120673821 U CN202120673821 U CN 202120673821U CN 214545392 U CN214545392 U CN 214545392U
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Abstract
The utility model discloses a prevent twining careless rotary blade suitable for stereoplasm soil belongs to agricultural implement spare part technical field, include the handle of a knife and be the blade of straight type, handle of a knife one end is provided with the installation department, the other end of handle of a knife with the one end of blade links to each other, its characterized in that the cutting edge portion one side of blade has set gradually and has blocked the pick, has strengthened the tooth, breaks ground the tooth, the top that blocks the pick arrives the vertical distance of blade is less than strengthen the tooth and the top of breaking ground the tooth arrives the vertical distance of blade, block the pick, strengthen the tooth, break ground and pass through the linear type incision transition between the tooth, block the pick setting and be being close to the one end of handle of a knife, the setting of breaking ground the one end of handle of a knife is kept away from to the blade with strengthen the tooth position as the starting point to blade lateral buckling. This structure cuts into the soil through the mode of point contact, adopts to strengthen the tooth and is the triangle-shaped form and further breaks ground, has reduced the rotary blade resistance of ingrowing, makes the blade change and cuts into the soil, blocks the pick setting simultaneously and is close to one side of handle of a knife at the blade, to not cutting off weeds, has played the barrier effect, avoids weeds to move to the handle of a knife and then forms and twines the grass, prevents twining careless ability reinforce, and simultaneously, this rotary blade is at the reverse rotation in-process, and the back of a knife blade can cut off weeds as the cutting edge, realizes the weeding function.
Description
Technical Field
The utility model relates to the technical field of agricultural machinery, more specifically relates to a prevent twining careless rotary blade suitable for stereoplasm soil.
Background
The rotary cultivator is a cultivator which is matched with a tractor to complete the operations of ploughing and harrowing. The soil breaking machine has the characteristics of strong soil breaking capacity, flat ground surface after ploughing and the like, so that the soil breaking machine is widely applied; meanwhile, the stubble buried below the ground surface can be cut up, the operation of the seeder is convenient, and a good seedbed is provided for later-stage seeding.
The rotary blade is an important accessory of the rotary cultivator, is used for scratching the ground in the farmland and is in a blade shape. The structure of the prior rotary blade is shown in figure 1, the prior rotary blade is provided with a blade at a rotary tillage surface, and the position of the blade tip is provided with a cutting surface, so that the prior rotary blade is contacted with the soil through the cutting surface when cutting into the soil, the contact area is large, but when the soil of hard soil is cultivated, the blade tip of the prior rotary blade can not effectively cut into the soil and can break the soil, the soil is flapped, the cultivation efficiency is reduced, the soil is hardened, the soil fertility is reduced, and when the rotary cultivator works, the part of the rotary blade which is not buried is easy to be wound by grass, so that the work is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a prevent twining careless rotary blade suitable for stereoplasm soil, has solved the problem that farming inefficiency and twine the grass easily when current rotary blade is used for the big soil of viscidity.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a prevent twining careless rotary blade includes the handle of a knife and is the blade of straight type suitable for stereoplasm soil, handle of a knife one end is provided with the installation department, the other end of handle of a knife with the one end of blade links to each other the cutting edge portion one side of blade has set gradually and has blocked pick, intensive tooth, broken tooth, the top that blocks the pick arrives the perpendicular distance of blade is less than reinforce the tooth reaches the top of broken tooth arrives the perpendicular distance of blade, block that the pick, reinforce the tooth, break through the transition of linear type incision between the tooth, it is in the one end that is close to the handle of a knife to block the pick setting, broken tooth sets up the one end that the handle of a knife was kept away from to the blade, the blade with reinforce tooth position as the starting point to the blade side is buckled, and the angle is alpha, and 30 alpha < 90.
Furthermore, the cutting stopping teeth and the strengthening teeth are triangular, the ground breaking teeth are curved, the side of the ground breaking teeth at the cutting edge part of the cutter body is linear, and the other side of the ground breaking teeth at the cutting edge part of the cutter body is convex curved.
Furthermore, the cutting blocking teeth are in a right-angle triangular shape, one end of each cutting blocking tooth, which is close to the reinforcing teeth, is provided with a right angle with the cutter body.
Furthermore, the cutting blocking teeth are in obtuse triangle shapes, one ends of the cutting blocking teeth close to the strengthening teeth are provided with acute angles with the cutting body.
Furthermore, the number of the ground breaking teeth and the number of the reinforcing teeth are 1, the number of the blocking teeth is 3, and the blocking teeth are seamlessly and tightly arranged at the blade part of the blade body.
Further, the vertical distance from the top end of the ground breaking tooth to the cutter body is 1.5 times of the vertical distance from the top end of the reinforced tooth to the cutter body, and the vertical distance from the top end of the reinforced tooth to the cutter body is 2 times of the vertical distance from the top end of the cutting stopping tooth to the cutter body.
Furthermore, the length of the intersecting line segment of the joint of the ground breaking tooth and the blade part of the blade body is 1-1.5 times that of the intersecting line segment of the joint of the reinforcing tooth and the blade part of the blade body, and the length of the intersecting line segment of the joint of the reinforcing tooth and the blade part of the blade body is 1.5-3 times that of the intersecting line segment of the joint of the cutting tooth and the blade part of the blade body.
Furthermore, the mounting part is an arc-shaped groove matched with the rotating shaft and circular mounting holes which are arranged on the two sides of the arc-shaped groove at equal intervals on the same horizontal line.
Furthermore, a back cutting edge is arranged on the other side of the cutting edge part of the knife body.
Furthermore, the cutter handle, the cutter body and the cutting teeth, the reinforcing teeth and the ground breaking teeth arranged on the cutter body are integrally formed into an integral structure or are welded and connected into an integral structure.
The utility model has the advantages that:
1. the rotary blade is provided with the soil breaking teeth at the tail end part of the blade body, the soil breaking teeth firstly cut into the soil during working and cut into the soil in a point contact mode, so that the contact area is reduced, the soil penetration resistance of the rotary blade is reduced, and meanwhile, the reinforcing teeth are in a triangular shape to further break the soil, so that the blade body is easier to cut into the soil, the normal use of the rotary blade on hard soil is facilitated, and the cultivation efficiency is improved; meanwhile, the blade body is bent, so that the contact area of the rotary tillage blades and the land is increased, the tillage area is increased, and the tillage efficiency is effectively improved.
2. The linear type incision between the ground breaking tooth, the strengthening tooth and the intercepting tooth is used as a cutting edge to cut weeds, so that the phenomenon of cutter winding is avoided, grass winding during cleaning is avoided, the cultivation time is prolonged, the cultivation efficiency is improved, the fertility of the land is increased by the cut weeds, the crop growth requirement is met, and the fertilizer cost is reduced.
3. A plurality of picks that block set up in one side that the blade is close to the handle of a knife, to not cutting off weeds, played the effect of blockking, avoid weeds to move to the handle of a knife and then form and twine the grass, prevent twining the grass ability reinforce, guaranteed the farming degree of depth, realize the recycling of earth, guaranteed the soil fertility, provide good soil environment for subsequent seeding operation.
4. This rotary blade is at the reverse rotation in-process, and the tooth that breaks ground is backward, and the back of a knife blade is forward, and the back of a knife blade can cut off weeds as the cutting edge, realizes the weeding function, has improved rotary blade's application range greatly.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings may be obtained from these drawings without inventive effort.
FIG. 1 is a schematic structural view of a conventional trenching knife;
fig. 2 is a schematic structural view of a grass-winding prevention rotary blade suitable for hard soil according to embodiment 1 of the present invention;
FIG. 3 is a schematic front view of the structure of FIG. 2;
FIG. 4 is a schematic diagram of the right side view of FIG. 2;
FIG. 5 is a schematic diagram showing the dimensions of the ground breaking teeth, the reinforcing teeth, and the intercepting teeth of the front view structure of FIG. 2;
fig. 6 is a schematic front view of a grass-winding prevention rotary blade suitable for hard soil according to embodiment 2 of the present invention;
fig. 7 is a schematic front view of a grass-winding prevention rotary blade suitable for hard soil according to embodiment 3 of the present invention;
in the figure: 1. a knife handle; 11. an arc-shaped groove; 12. mounting holes; 2. a blade body; 21. cutting pick blocking; 22. reinforcing teeth; 23. breaking soil teeth; 24. back blade.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 2 to 5, the grass-winding prevention rotary blade for hard soil according to a preferred embodiment of the present invention comprises a blade holder 1 and a straight blade body 2, one end of the knife handle 1 is provided with an installation part, the other end of the knife handle 1 is connected with one end of the knife body 2, a cutting stopping tooth 21, a strengthening tooth 22 and a ground breaking tooth 23 are sequentially arranged on one side of the cutting edge part of the cutter body 2, the vertical distance from the top end of the blocking pick 21 to the blade body 2 is smaller than the vertical distance from the top ends of the reinforcing teeth 22 and the ground breaking teeth 23 to the blade body 2, the cutting stopping teeth 21, the strengthening teeth 22 and the ground breaking teeth 23 are transited through linear type notches, the cutting stopping teeth 21 are arranged at one end close to the tool shank 1, the ground breaking teeth 23 are arranged at one end of the tool body 2 far away from the tool shank 1, the blade 2 is bent toward the side of the blade 2 with the position of the reinforced tooth 22 as a starting point.
As shown in fig. 3, the blade 2 is bent toward the side of the blade 2 with the position of the reinforcing tooth 22 as a starting point, the bending angle is α, the included angle between the blade 2 and the horizontal direction is too large, the earth digging resistance is increased, the blade 2 is easy to break, the maintenance cost is increased, the included angle with the horizontal direction is too small, the area contacting the ground is too small, the earth digging effect is poor, and optionally α is 30 ° to 90 °.
In this embodiment, the α -bend angle is 30 °,
in this embodiment, the reinforcing teeth 22 are triangular, the ground breaking teeth 23 are curved, the ground breaking teeth 23 are linear on the side of the cutting edge of the blade 2, the ground breaking teeth 23 are convex curved on the other side of the cutting edge of the blade 2, the number of the ground breaking teeth 23 and the number of the reinforcing teeth 22 are 1, and the cutting edges of the blade 2 are seamlessly and closely arranged between the cutting pick blocks 21.
The linear type incision between the ground breaking tooth, the strengthening tooth and the intercepting tooth is used as a cutting edge to cut weeds, so that the phenomenon of cutter winding is avoided, grass winding during cleaning is avoided, the cultivation time is prolonged, the cultivation efficiency is improved, the fertility of the land is increased by the cut weeds, the crop growth requirement is met, and the fertilizer cost is reduced.
In this embodiment, the cutting blocking teeth 21 are in a right-angle triangular shape, one end of each cutting blocking tooth 21 close to the corresponding reinforcing tooth 22 is provided with a right angle, the included angle between each cutting blocking tooth 21 and the corresponding tool body 2 is 3, and the cutting blocking teeth 21 are seamlessly and closely arranged on the edge portion of the corresponding tool body 2.
The three pick that blocks sets up in one side that the blade is close to the handle of a knife, blocks pick 21 and is right angled triangle, to not cutting off weeds, has played the effect of blockking, avoids weeds to move to the handle of a knife and then forms and twine the grass, prevents twining the grass ability reinforce, has guaranteed the farming degree of depth, realizes the used cycle of earth, has guaranteed the soil fertility, provides good soil environment for subsequent seeding operation.
As shown in fig. 5, the vertical distance d from the top end of the breaking tooth 23 to the blade body 2 is1The vertical distance from the top end of the reinforcing tooth 22 to the blade body 2 is d2The vertical distance from the top end of the cutting pick 23 to the cutter body 2 is d3。
In this example, d1＝1.5d2，d2＝2d3。
The distance between the top end of the soil breaking tooth 23 and the blade body is the farthest, so that the soil breaking tooth 23 can firstly cut into soil when the rotary blade works, the soil breaking tooth 23 cuts into the soil in a point contact mode, the contact area is reduced, the difficulty of cutting the rotary blade into the soil is reduced, and the rotary blade can be conveniently used normally on hard soil.
As shown in fig. 5, the length of the intersecting line segment of the earth-breaking tooth 23 and the blade part of the blade body 2 is l1The length of the intersecting line segment of the joint of the reinforced tooth 22 and the blade part of the blade body 2 is l2The length of the intersecting line segment of the connecting part of the cutting pick 21 and the cutting edge part of the cutter body 2 is l3。
In this example, 11＝l2，l2＝2l3。
As shown in fig. 2, 3 and 5, the mounting portion includes an arc-shaped groove 11 that is engageable with the rotating shaft, and circular mounting holes 12 that are provided on both sides of the arc-shaped groove 11 at equal distances from each other on the same horizontal line.
The rotary blade can be an integrated structure formed integrally or an integrated structure formed by welding connection or a structure fixedly connected by bolts or a structure connected by riveting.
In this embodiment, the handle, the blade, and the cutting edge, the reinforcing tooth, and the ground breaking tooth that are provided on the blade are an integrated structure that is integrally formed.
Example 2
Shown as figure 6 is a prevent twining careless rotary blade suitable for stereoplasm soil, include handle of a knife 1 and be the blade 2 of straight type, 1 one end of handle of a knife is provided with the installation department, the other end of handle of a knife 1 with the one end of blade 2 links to each other blade portion one side of blade 2 has set gradually and has blocked pick 21, has strengthened tooth 22, broken soil tooth 23, the top that blocks pick 21 arrives the vertical distance of blade 2 is less than strengthen tooth 22 and the top of broken soil tooth 23 arrives the vertical distance of blade 2, block through the transition of linear type incision between pick 21, strengthen tooth 22, the broken soil tooth 23, block the pick 21 setting in the one end that is close to handle of a knife 1, broken soil tooth 23 sets up the one end that handle of a knife 1 was kept away from to blade 2, blade 2 with strengthen tooth 22 place as the starting point to blade 2 side bending.
In this embodiment, the α -bend angle is 60 °,
in the present embodiment, as shown in fig. 6, the reinforcing teeth 22 have a triangular shape, the breaking teeth 23 have a curved shape, the breaking teeth 23 have a linear shape on the blade portion side of the blade 2, the breaking teeth 23 have a convex curved shape on the other side of the blade portion of the blade 2, and the number of the breaking teeth 23 and the reinforcing teeth 22 is 1.
In the present embodiment, as shown in fig. 6, the cutting pick 21 is in an obtuse triangular shape, the cutting pick 21 is close to one end of the reinforcing tooth 22, an included angle between the cutting pick 21 and the tool body 2 is an acute angle, the number of the cutting pick 21 is 3, and the cutting pick 21 is seamlessly and closely arranged at the edge portion of the tool body 2.
In this example, d1＝1.5d2，d2＝2d3。
In this example, 11＝1.2l2，l2＝3l3。
As shown in fig. 6, the mounting portion is an arc groove 11 that can be engaged with the rotating shaft, and circular mounting holes 12 are formed on both sides of the arc groove 11 at equal intervals on the same horizontal line.
The rotary blade can be an integrated structure formed integrally or an integrated structure formed by welding connection or a structure fixedly connected by bolts or a structure connected by riveting
In this embodiment, handle of a knife, blade integrated into one piece, it welds to block pick, intensive tooth, the tooth that breaks ground seamless on the blade.
In the embodiment, the soil breaking teeth are arranged at the tail end of the blade body of the rotary blade, the soil breaking teeth firstly cut into the soil during working, the soil is cut into the soil in a point contact mode, the contact area is reduced, the resistance of the rotary blade to soil penetration is reduced, meanwhile, the strengthening teeth are in a triangular shape to further break the soil, the blade body is enabled to be more easily cut into the soil, the normal use of the rotary blade on hard soil is facilitated, the linear cuts between the soil breaking teeth, the strengthening teeth and the intercepting teeth serve as cutting edges, weeds are cut, the phenomenon of winding the blade is avoided, the intercepting teeth are in obtuse triangles, the included angles between the intercepting teeth and the blade body are acute angles, the weeds in the strengthening tooth direction can be intercepted and cut off, the weeds are prevented from moving to the blade handle and further form winding the weeds, the grass winding prevention capability is strong, and the cultivation depth is guaranteed.
Example 3
Fig. 7 shows is a grass-winding-preventing rotary blade suitable for hard soil, including handle of a knife 1 and the blade 2 that is straight, 1 one end of handle of a knife is provided with the installation department, the other end of handle of a knife 1 with the one end of blade 2 links to each other blade portion one side of blade 2 has set gradually and has blocked pick 21, has strengthened tooth 22, broken soil tooth 23, the top that blocks pick 21 arrives blade 2's vertical distance is less than strengthen tooth 22 reaches the top of broken soil tooth 23 arrives the vertical distance of blade 2, block through the transition of linear type incision between pick 21, strengthen tooth 22, the broken soil tooth 23, block the pick 21 setting in the one end that is close to handle of a knife 1, broken soil tooth 23 sets up the one end that handle of a knife 1 was kept away from to blade 2, blade 2 with strengthen tooth 22 place as the starting point to blade 2 side bending.
In this embodiment, the α -bend angle is 90 °,
in the present embodiment, as shown in fig. 7, the reinforcing teeth 22 have a triangular shape, the breaking teeth 23 have a curved shape, the breaking teeth 23 have a linear shape on the blade portion side of the blade 2, the breaking teeth 23 have a convex curved shape on the other side of the blade portion of the blade 2, and the number of the breaking teeth 23 and the reinforcing teeth 22 is 1.
In the present embodiment, as shown in fig. 6, the cutting pick 21 is in a right-angled triangular shape, the cutting pick 21 is close to one end of the reinforcing tooth 22, an included angle between the cutting pick 21 and the tool body 2 is a right angle, the number of the cutting pick 21 is 3, and the cutting pick 21 is seamlessly and closely arranged on the edge portion of the tool body 2.
In this example, d1＝1.5d2，d2＝2d3。
In this example, 11＝1.5l2，l2＝1.5l3。
In this embodiment, a back blade 24 is provided on the other side of the blade portion of the blade body.
In this embodiment, as shown in fig. 7, the mounting portion is an arc-shaped groove 11 that can be engaged with the rotating shaft, and circular mounting holes 12 are disposed on both sides of the arc-shaped groove 11 at equal distances along the same horizontal line.
In this embodiment, handle of a knife, blade integrated into one piece, it welds to block pick, intensive tooth, the tooth that breaks ground seamless on the blade.
In the embodiment, the soil breaking teeth are arranged at the tail end part of the blade body of the rotary blade, the soil breaking teeth firstly cut into the soil during working and cut into the soil in a point contact mode, so that the contact area is reduced, the soil penetration resistance of the rotary blade is reduced, and meanwhile, the reinforcing teeth are in a triangular shape to further break the soil, so that the blade body is easier to cut into the soil, the normal use of the rotary blade on hard soil is facilitated, and weeds are cut by using linear cuts among the soil breaking teeth, the reinforcing teeth and the intercepting teeth as cutting edges, so that the phenomenon of blade winding is avoided; on the other hand the opposite side of the blade portion of blade is provided with the back cutting edge for this rotary blade is at the reverse rotation in-process, and the tooth that breaks ground is backward, and the back of a knife blade is forward, and the back of a knife blade can be regarded as the cutting edge and can be cut off weeds, realizes the weeding function, has improved rotary blade's application range greatly.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (10)
1. The utility model provides a prevent twining careless rotary blade suitable for stereoplasm soil, includes the handle of a knife and is the blade of straight type, handle of a knife one end is provided with the installation department, the other end of handle of a knife with the one end of blade links to each other, its characterized in that the cutting edge portion one side of blade has set gradually and has blocked the pick, has strengthened tooth, the tooth that breaks ground, the top that blocks the pick arrives the perpendicular distance of blade is less than strengthen the tooth and reach the perpendicular distance of the tooth that breaks ground arrives the blade, block the pick, strengthen the tooth, break ground and pass through the transition through the linear type incision between the tooth, block the pick setting in the one end that is close to the handle of a knife, the tooth that breaks ground sets up the one end that the handle of a knife was kept away from to the blade, the blade with strengthen tooth position as the starting point to the blade side is buckled, and the angle is alpha, and 30 alpha < 90.
2. The grass-winding prevention rotary blade according to claim 1, wherein the blocking teeth and the reinforcing teeth are triangular, the breaking teeth are curved, the breaking teeth are linear on the blade portion side of the blade body, and the breaking teeth are convex curved on the other side of the blade portion of the blade body.
3. The grass-winding prevention rotary blade applicable to hard soil according to claim 2, wherein the blocking pick is in a right-angled triangular shape, and an included angle between the blocking pick and the blade body is a right angle at one end of the blocking pick close to the reinforcing tooth.
4. The grass-winding prevention rotary blade applicable to hard soil according to claim 2, wherein the blocking pick is in an obtuse triangular shape, and an included angle between the blocking pick and the blade body is an acute angle at one end of the blocking pick close to the reinforcing tooth.
5. The grass-winding-prevention rotary blade applicable to hard soil according to claim 2, wherein the number of the soil breaking teeth and the strengthening teeth is 1, the number of the blocking teeth is 3, and the blocking teeth are seamlessly and closely arranged at the blade part of the blade body.
6. The grass-winding prevention rotary blade applicable to hard soil according to claim 2, wherein the vertical distance from the top end of the breaking tooth to the blade body is 1.5 times that from the top end of the reinforcing tooth to the blade body, and the vertical distance from the top end of the reinforcing tooth to the blade body is 2 times that from the top end of the blocking pick to the blade body.
7. The grass-winding preventing rotary blade for hard soil according to claim 2, wherein the length of the line segment intersecting the junction of the breaking tooth and the blade edge of the blade body is 1 to 1.5 times the length of the line segment intersecting the junction of the reinforcing tooth and the blade edge of the blade body, and the length of the line segment intersecting the junction of the reinforcing tooth and the blade edge of the blade body is 1.5 to 3 times the length of the line segment intersecting the junction of the blocking tooth and the blade edge of the blade body.
8. The grass-winding prevention rotary blade applicable to hard soil according to claim 1, wherein the mounting portion is a circular arc groove capable of being fitted with the rotating shaft and circular mounting holes arranged at equal intervals on the same horizontal line on both sides of the circular arc groove.
9. The grass-winding prevention rotary blade applicable to hard soil according to claim 1, wherein a back blade is provided on the other side of the blade part of the blade body.
10. The grass-winding-preventing rotary blade suitable for the hard soil according to any one of claims 1 to 9, wherein the blade handle, the blade body, and the cutting stopping teeth, the reinforcing teeth and the ground breaking teeth arranged on the blade body are integrally formed into an integral structure or are integrally welded and connected into an integral structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120673821.7U CN214545392U (en) | 2021-04-02 | 2021-04-02 | Prevent twining careless rotary blade suitable for stereoplasm soil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120673821.7U CN214545392U (en) | 2021-04-02 | 2021-04-02 | Prevent twining careless rotary blade suitable for stereoplasm soil |
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| CN214545392U true CN214545392U (en) | 2021-11-02 |
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| CN202120673821.7U Active CN214545392U (en) | 2021-04-02 | 2021-04-02 | Prevent twining careless rotary blade suitable for stereoplasm soil |
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2021
- 2021-04-02 CN CN202120673821.7U patent/CN214545392U/en active Active
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