CN114514868A - Birch tear picking tool - Google Patents
Birch tear picking tool Download PDFInfo
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- CN114514868A CN114514868A CN202210144567.0A CN202210144567A CN114514868A CN 114514868 A CN114514868 A CN 114514868A CN 202210144567 A CN202210144567 A CN 202210144567A CN 114514868 A CN114514868 A CN 114514868A
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- birch
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G23/00—Forestry
- A01G23/10—Tapping of tree-juices, e.g. caoutchouc, gum
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Abstract
The invention relates to the technical field of picking, in particular to a birch tear picking tool. The technical problem is as follows: when the axe cutter is used manually to pick up tears of the birch, the birch trunk is damaged, so that cavities appear in the birch, and birch resources are reduced. The technical scheme is as follows: a birch tear picking tool comprises a handle and a fixing unit; the upper part of the handle is connected with a fixing unit. The invention realizes the removal of the birch tears, realizes the inclusion of the birch tears on the birch by utilizing the lever principle, separates the birch tears from the birch, does not cause great damage to the whole birch, and is designed to be handheld, thereby being more convenient for a single person to remove the birch tears.
Description
Technical Field
The invention relates to the technical field of picking, in particular to a birch tear picking tool.
Background
In the existing birch tear picking, a simple axe cutter is used manually for picking, the height of the birch tear is seven to two meters per meter, the picking is difficult due to the difference of the heights of the workers, and meanwhile, the birch trunk around the birch tear is damaged during manual picking, so that the birch is seriously injured, a cavity is formed inside the birch, the birch resource is reduced, the yield of the birch tear is reduced, and the local forestry environment is damaged;
In view of the above, there is a need for a birch tear picker to address the above problems.
Disclosure of Invention
The invention provides a birch tear picking tool, aiming at overcoming the defect that birch resources are reduced because birch trunks are damaged to cause cavities in birch when birch tears are picked manually by using an axe cutter.
The technical scheme is as follows: a birch tear picking tool comprises a handle, a fixing unit, a pulling unit and a cutting unit; the upper part of the handle is connected with a fixing unit which is used for being fixed on the birch; the fixed unit is connected with a pulling unit, the pulling unit is connected with the handle, and the pulling unit is used for providing power for removing birch tears; the rear part of the pulling unit is connected with a cutting unit, the cutting unit is connected with the fixing unit, and the cutting unit is used for cutting off birch tears.
As an improvement of the scheme, the fixing unit comprises a handle, a shell plate, a connecting buckle plate, a first connecting plate, a first pulley, a first fixing rod, a fixing frame and a second connecting plate; the upper end of the handle is fixedly connected with a connecting buckle plate; the connecting buckle plate is connected with the cutting unit; the upper surface of the connecting buckle plate is symmetrically and fixedly connected with two shell plates; the two shell plates are connected with the collecting unit; a first pulley is fixedly connected between the lower parts of the two shell plates; the first pulley is connected with the cutting unit; a first connecting plate is fixedly connected to the rear sides of the lower parts of the two shell plates; a second connecting plate is fixedly connected to the rear sides of the upper parts of the two shell plates; the opposite sides of the two shell plates are fixedly connected with a first fixed rod respectively; the upper ends of the two first fixing rods are rotatably connected with a fixing frame; the fixed frame is connected with the pulling unit.
As an improvement of the scheme, the fixing frame is provided with a groove.
As an improvement of the scheme, the pulling unit comprises a pull rod, a pull plate, a transmission plate, a mounting plate, a rotating ring, a second pulley, a first limiting block and a second limiting block; a pull rod is arranged in the handle; the upper part of the pull rod is fixedly connected with a pull plate; the upper part of the pulling plate is fixedly connected with a transmission plate; the pulling plate is contacted with the first pulley; the transmission plate is connected with the cutting unit; the upper part of the transmission plate is fixedly connected with a second limiting block; the second limiting block is connected with the cutting unit; the front part of the second limiting block is fixedly connected with a mounting plate; the upper part of the mounting plate is fixedly connected with a rotating ring; the rotating ring is connected with the fixed frame; the lower part of the first fixed rod transmission plate is fixedly connected with a first limiting block; the first limiting block is connected with the cutting unit; a second pulley is fixedly connected to the rear side of the middle part of the pulling plate and is positioned below the first pulley; the second pulley is connected with the cutting unit.
As an improvement of the proposal, the inner surface of the rotating ring is provided with a convex block, and the position of the convex block corresponds to the position of the groove arranged on the fixed frame.
As an improvement of the above scheme, the cutting unit comprises a first cutting clamp, a first sliding rod, a first rope, a first reversing pulley block, a conversion buckle, a first elastic piece, a transverse plate, a second reversing pulley block, a second cutting clamp, a second sliding rod, a second rope, a third rope, a second elastic piece and a third elastic piece; the rear part of the first limiting block is symmetrically connected with two first sliding rods in a sliding manner; the outer surfaces of the two first sliding rods are respectively sleeved with a second elastic piece; the upper ends of the two first sliding rods are fixedly connected with a first cutting clamp; the first removing clamp is contacted with the first limiting block; the second elastic piece is contacted with the first limiting block; the rear part of the second limiting block is symmetrically connected with two second sliding rods in a sliding manner; the outer surfaces of the two second sliding rods are respectively sleeved with a third elastic piece; the lower ends of the two second sliding rods are fixedly connected with a second cutting clamp; the rear side surface of the transmission plate is fixedly connected with a transverse plate; a first reversing pulley block is arranged on the rear side of the lower part of the transverse plate; a second reversing pulley block is arranged on the rear side of the upper part of the transverse plate; a first rope is wound on the first reversing pulley block; the first rope is fixedly connected with the first cutting clamp; a second rope is wound on the second reversing pulley block; the second rope is fixedly connected with the second resection clamp; the lower ends of the first rope and the second rope are fixedly connected with a conversion buckle; the lower end of the conversion buckle is fixedly connected with a third rope; the third rope is in contact with the lower part of the first pulley; the third rope is in contact with the upper part of the second pulley; the lower end of the third rope is fixedly connected with a first elastic piece; the first elastic piece is connected with the connecting buckle plate.
As an improvement of the scheme, the first cutting clamp and the second cutting clamp are respectively provided with a plurality of cutting teeth.
As an improvement of the scheme, the collecting unit comprises a mounting buckle, a second fixing rod and a cloth bag; the back sides of the two shell plates are fixedly connected with a mounting buckle respectively; the two mounting buckles are respectively and rotatably connected with a second fixing rod; a cloth bag is arranged between the two second fixing rods.
As an improvement of the scheme, the rear ends of the two second fixing rods are respectively provided with a movable plate for adapting to the size of the birch.
The beneficial effects are that: the invention realizes the removal of the birch tears, realizes the inclusion of the birch tears on the birch by utilizing the lever principle, separates the birch tears from the birch, does not cause great damage to the whole birch, and is designed to be handheld, thereby being more convenient for a single person to remove the birch tears.
Drawings
FIG. 1 is a schematic view of a first perspective view of a birch tear picker according to the present invention;
FIG. 2 is a schematic view of a second perspective view of a tear picking tool for birch according to the present invention;
fig. 3 is a schematic view of a first three-dimensional structure of a birch tear picking tool fixing unit according to the present invention;
fig. 4 is a schematic view of a second three-dimensional structure of a birch tear picking tool fixing unit according to the present invention;
Fig. 5 is a partial perspective view of a birch tear picking tool fixing unit according to the present invention;
FIG. 6 is a schematic perspective view of a pulling unit of a tear picker for birch according to the present invention;
FIG. 7 is a schematic view of a partial perspective view of a pulling unit of a birch tear picker according to the present invention;
fig. 8 is a schematic view of a first three-dimensional structure of a cutting unit of a birch tear picking tool according to the present invention;
fig. 9 is a schematic view of a second perspective structure of a cutting unit of a birch tear picking tool according to the present invention;
fig. 10 is a third perspective view of a cutting unit of a birch tear picking tool according to the present invention;
fig. 11 is a schematic view of a fourth perspective structure of a cutting unit of a birch tear picking tool according to the present invention;
fig. 12 is a schematic perspective view of a birch tear picking tool collecting unit according to the present invention.
Part names and serial numbers in the figure: 1-a grip, 101-a shell plate, 102-a connection buckle, 103-a first connecting plate, 104-a first pulley, 105-a first fixing rod, 106-a fixing frame, 107-a second connecting plate, 201-a pull rod, 202-a pull plate, 203-a transmission plate, 204-a mounting plate, 205-a rotating ring, 206-a second pulley, 207-a first limiting block, 208-a second limiting block, 301-a first resection clip, 302-a first slide bar, 303-a first rope, 304-a first reversing pulley block, 305-a conversion buckle, 306-a first elastic element, 307-a transverse plate, 308-a second reversing pulley block, 309-a second resection clip, 3010-a second slide bar, 3011-a second rope, 3012-a third rope, 3013-a second elastic element, 3014-third elastic piece, 401-installation button, 402-second fixing rod, 403-cloth bag.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the embodiment of the present invention 306-the first resilient member, 3013-the second resilient member, and 3014-the third resilient member are springs.
Example 1
A birch tear picking tool is shown in figures 1-12 and comprises a handle 1, a fixing unit, a pulling unit and a cutting unit; the upper part of the handle 1 is connected with a fixing unit; the fixed unit is connected with a pulling unit which is connected with the handle 1; the rear part of the pulling unit is connected with a cutting unit, and the cutting unit is connected with the fixing unit.
The working process is as follows: when the birch tears are picked, an operator holds the handle 1 by hand, then fixes the device on the birch with the birch tears through the fixing unit, so that the birch tears are positioned under the range of the cutting unit, then pulls the pulling unit, drives the cutting unit to clamp the birch tears and remove the birch tears from the birch through the pulling unit, and finally finishes the removal of the birch tears; the invention realizes the removal of the birch tears, realizes the inclusion of the birch tears on the birch by utilizing the lever principle, separates the birch tears from the birch, does not cause great damage to the whole birch, and is designed to be handheld, thereby being more convenient for a single person to remove the birch tears.
Example 2
On the basis of embodiment 1, as shown in fig. 1 and fig. 3 to 11, the fixing unit includes a grip 1, a shell plate 101, a connecting buckle plate 102, a first connecting plate 103, a first pulley 104, a first fixing rod 105, a fixing frame 106 and a second connecting plate 107; the upper end of the handle 1 is fixedly connected with a connecting buckle plate 102; the connecting buckle plate 102 is connected with the cutting unit; the upper surface of the connecting buckle plate 102 is symmetrically connected with two shell plates 101 through bolts; the two housing plates 101 are connected to the collection unit; a first pulley 104 is fixedly connected between the lower parts of the two shell plates 101; the first pulley 104 is connected with the cutting unit; a first connecting plate 103 is connected to the lower rear side of the two shell plates 101 through bolts; a second connecting plate 107 is connected to the upper rear side bolt of the two shell plates 101; the opposite sides of the two shell plates 101 are respectively connected with a first fixing rod 105 through bolts; the upper ends of the two first fixing rods 105 are rotatably connected with a fixing frame 106; the fixed frame 106 is connected with the pulling unit.
The fixing frame 106 is provided with a groove.
The pulling unit comprises a pull rod 201, a pull plate 202, a transmission plate 203, a mounting plate 204, a rotating ring 205, a second pulley 206, a first limiting block 207 and a second limiting block 208; a pull rod 201 is arranged in the handle 1; a pulling plate 202 is fixedly connected to the upper part of the pulling rod 201; the upper part of the pulling plate 202 is connected with a driving plate 203 through bolts; the pulling plate 202 is in contact with the first pulley 104; the transmission plate 203 is connected with the cutting unit; the upper part of the transmission plate 203 is connected with a second limiting block 208 through a bolt; the second limiting block 208 is connected with the cutting unit; the front part of the second limiting block 208 is connected with a mounting plate 204 through bolts; the upper part of the mounting plate 204 is connected with a rotating ring 205 through bolts; the rotating ring 205 is connected with the fixed frame 106; the lower part of the transmission plate 203 of the first fixed rod 105 is connected with a first limiting block 207 through a bolt; the first limiting block 207 is connected with the cutting unit; a second pulley 206 is fixedly connected to the rear side of the middle part of the pulling plate 202, and the second pulley 206 is positioned below the first pulley 104; the second pulley 206 is connected to the cutting unit.
The inner surface of the rotating ring 205 is provided with a projection, and the position of the projection corresponds to the position of the groove formed on the fixing frame 106.
The cutting unit comprises a first cutting clamp 301, a first sliding rod 302, a first rope 303, a first reversing pulley block 304, a switching buckle 305, a first elastic piece 306, a transverse plate 307, a second reversing pulley block 308, a second cutting clamp 309, a second sliding rod 3010, a second rope 3011, a third rope 3012, a second elastic piece 3013 and a third elastic piece 3014; the rear part of the first limiting block 207 is symmetrically connected with two first sliding rods 302 in a sliding manner; the outer surfaces of the two first sliding bars 302 are respectively sleeved with a second elastic piece 3013; a first cutting clamp 301 is fixedly connected to the upper ends of the two first sliding rods 302; the first cutting clamp 301 is in contact with the first limiting block 207; the second elastic piece 3013 is in contact with the first limiting block 207; the rear part of the second limiting block 208 is symmetrically connected with two second sliding rods 3010 in a sliding manner; the outer surfaces of the two second slide bars 3010 are respectively sleeved with a third elastic piece 3014; the lower ends of the two second sliding rods 3010 are fixedly connected with a second cutting clamp 309; a transverse plate 307 is fixedly connected to the rear side surface of the transmission plate 203; a first reversing pulley block 304 is arranged at the rear side of the lower part of the transverse plate 307; a second reversing pulley block 308 is arranged on the rear side of the upper part of the transverse plate 307; a first rope 303 is wound on the first reversing pulley block 304; the first rope 303 is fixedly connected with the first cutting clamp 301; a second rope 3011 is wound on the second reversing pulley block 308; the second rope 3011 is fixedly connected to the second resection clip 309; the lower ends of the first rope 303 and the second rope 3011 are fixedly connected with a conversion buckle 305; a third rope 3012 is fixedly connected to the lower end of the conversion buckle 305; third cord 3012 is in contact with the underside of first pulley 104; third cord 3012 is in contact with the top of second pulley 206; the lower end of the third rope 3012 is fixedly connected with a first elastic piece 306; the first elastic member 306 is connected with the connecting buckle plate 102.
The first cutting clip 301 and the second cutting clip 309 are each provided with a plurality of cutting teeth.
The working process comprises the following steps: when in use, an operator holds the grip 1 by hand, fixes the whole device on a birch by using the fixing frame 106, covers birch tears between the first excision clamp 301 and the second excision clamp 309, then holds the grip 1 by one hand, pulls the pull rod 201 towards the direction far away from the birch by one hand, then the pull rod 201 drives the pull plate 202, the driving plate 203, the mounting plate 204 and the rotating ring 205 to turn over by taking the fixing frame 106 as a fulcrum, and the rotating ring 205 drives the fixing frame 106 to slightly turn over, so that the friction between the fixing frame 106 and the birch is increased, the device can be more stably fixed on the birch, the second pulley 206 pulls the third rope 3012 to move towards the direction far away from the birch during turning over, the third rope 3012 pulls the first rope 303 and the second rope 3011, so that the first rope 303 pulls the first excision clamp 301 to move upwards, and the second rope 3011 pulls the second excision clamp 309 to move downwards, then the first cutting clamp 301 and the second cutting clamp 309 clamp the birch tear together, at the same time the pulling plate 202, the driving plate 203, the mounting plate 204 and the rotating ring 205 drive the first cutting clamp 301, the first sliding rod 302, the first rope 303, the first reversing pulley block 304, the converting buckle 305, the transverse plate 307, the second reversing pulley block 308, the second cutting clamp 309, the second sliding rod 3010, the second rope 3011, the third rope 3012, the second elastic component 3013 and the third elastic component 3014 to turn in the direction away from the birch with the fixing frame 106 as the fulcrum, then the first cutting clamp 301 and the second cutting clamp 309 pull the birch tear off from the birch together to complete the cutting off work, then the device is taken off from the birch, the operator resets the pulling rod 201, the first cutting clamp 301 resets through the compressed second elastic component 3013, and similarly the second cutting clamp 309 resets through the compressed third elastic component 3014, finally, the birch tears falling off after the first cutting clamp 301 and the second cutting clamp 309 are reset enter the storage device, and collection of the birch tears is completed; the mechanism realizes the removal and collection of tears of the birch.
Example 3
On the basis of embodiment 2, as shown in fig. 1 and 12, the collecting unit includes a mounting buckle 401, a second fixing rod 402 and a cloth bag 403; the opposite sides of the two shell plates 101 are respectively connected with an installation buckle 401 through bolts; the two mounting buckles 401 are respectively and rotatably connected with a second fixing rod 402; a cloth bag 403 is arranged between the two second fixing rods 402.
The rear ends of the two second fixing bars 402 are respectively provided with a movable plate for adapting to the size of the birch.
The working process is as follows: when the birch tears are removed, the bark chips and the dregs around the removed birch tears drop into the cloth bag 403 along the birch trunk to be collected, so that the bark chips and the dregs are prevented from splashing into eyes to be injured when the birch tears are removed by an axe manually, and finally the bark chips and the dregs are poured into a collecting device by an operator; the mechanism realizes the collection of fallen bark scraps and birch tear residues.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (9)
1. A birch tear picking tool comprises a handle; the device is characterized by also comprising a fixing unit, a pulling unit and a cutting unit; the upper part of the grip is connected with a fixing unit which is used for being fixed on the birch; the fixed unit is connected with a pulling unit, the pulling unit is connected with the handle, and the pulling unit is used for providing power for removing birch tears; the back part of the pulling unit is connected with a cutting unit, the cutting unit is connected with the fixing unit, and the cutting unit is used for removing birch tears.
2. The birch tear picking tool according to claim 1, wherein the fixing unit comprises a handle, a housing plate, a connecting buckle plate, a first connecting plate, a first pulley, a first fixing rod, a fixing frame and a second connecting plate; the upper end of the handle is fixedly connected with a connecting buckle plate; the connecting buckle plate is connected with the cutting unit; the upper surface of the connecting buckle plate is symmetrically and fixedly connected with two shell plates; the two shell plates are connected with the collecting unit; a first pulley is fixedly connected between the lower parts of the two shell plates; the first pulley is connected with the cutting unit; a first connecting plate is fixedly connected to the rear sides of the lower parts of the two shell plates; a second connecting plate is fixedly connected to the rear sides of the upper parts of the two shell plates; the opposite sides of the two shell plates are fixedly connected with a first fixed rod respectively; the upper ends of the two first fixing rods are rotatably connected with a fixing frame; the fixed frame is connected with the pulling unit.
3. The birch tear picking tool of claim 2, wherein the holder has a recess formed therein.
4. The birch tear picking tool according to claim 3, wherein the pulling unit comprises a pull rod, a pull plate, a transmission plate, a mounting plate, a rotating ring, a second pulley, a first limit block and a second limit block; a pull rod is arranged in the handle; the upper part of the pull rod is fixedly connected with a pull plate; the upper part of the pulling plate is fixedly connected with a transmission plate; the pulling plate is contacted with the first pulley; the transmission plate is connected with the cutting unit; the upper part of the transmission plate is fixedly connected with a second limiting block; the second limiting block is connected with the cutting unit; the front part of the second limiting block is fixedly connected with a mounting plate; the upper part of the mounting plate is fixedly connected with a rotating ring; the rotating ring is connected with the fixed frame; the lower part of the first fixed rod transmission plate is fixedly connected with a first limiting block; the first limiting block is connected with the cutting unit; a second pulley is fixedly connected to the rear side of the middle part of the pulling plate and is positioned below the first pulley; the second pulley is connected with the cutting unit.
5. The birch tear picking tool of claim 4, wherein the inner surface of the rotating ring is provided with a protrusion, and the position of the protrusion corresponds to the position of the groove formed in the fixing frame.
6. The birch tear picking tool of claim 5, wherein the cutting unit comprises a first cutting clip, a first slide bar, a first rope, a first reversing pulley block, a switch button, a first elastic member, a transverse plate, a second reversing pulley block, a second cutting clip, a second slide bar, a second rope, a third rope, a second elastic member and a third elastic member; the rear part of the first limiting block is symmetrically connected with two first sliding rods in a sliding manner; the outer surfaces of the two first sliding rods are respectively sleeved with a second elastic piece; the upper ends of the two first sliding rods are fixedly connected with a first cutting clamp; the first removing clamp is contacted with the first limiting block; the second elastic piece is contacted with the first limiting block; the rear part of the second limiting block is symmetrically connected with two second sliding rods in a sliding manner; the outer surfaces of the two second sliding rods are respectively sleeved with a third elastic piece; the lower ends of the two second sliding rods are fixedly connected with a second cutting clamp; the rear side surface of the transmission plate is fixedly connected with a transverse plate; a first reversing pulley block is arranged on the rear side of the lower part of the transverse plate; a second reversing pulley block is arranged on the rear side of the upper part of the transverse plate; a first rope is wound on the first reversing pulley block; the first rope is fixedly connected with the first cutting clamp; a second rope is wound on the second reversing pulley block; the second rope is fixedly connected with the second resection clamp; the lower ends of the first rope and the second rope are fixedly connected with a conversion buckle; the lower end of the conversion buckle is fixedly connected with a third rope; the third rope is in contact with the lower part of the first pulley; the third rope is in contact with the upper part of the second pulley; the lower end of the third rope is fixedly connected with a first elastic piece; the first elastic piece is connected with the connecting buckle plate.
7. The birch tear picker according to claim 6 wherein the first and second cutting clips each have a plurality of cutting teeth.
8. The birch tear picking tool according to claim 7, wherein the collecting unit comprises a mounting buckle, a second fixing rod and a cloth bag; the opposite sides of the two shell plates are fixedly connected with a mounting buckle respectively; the two mounting buckles are respectively and rotatably connected with a second fixing rod; a cloth bag is arranged between the two second fixing rods.
9. The birch tear picking tool of claim 8, wherein the rear ends of the two second fixing rods are respectively provided with a movable plate for adapting to the size of the birch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210144567.0A CN114514868B (en) | 2022-02-17 | 2022-02-17 | Birch tear picking tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210144567.0A CN114514868B (en) | 2022-02-17 | 2022-02-17 | Birch tear picking tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114514868A true CN114514868A (en) | 2022-05-20 |
| CN114514868B CN114514868B (en) | 2023-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210144567.0A Active CN114514868B (en) | 2022-02-17 | 2022-02-17 | Birch tear picking tool |
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| Country | Link |
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| CN (1) | CN114514868B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190413957A (en) * | 1904-06-20 | 1904-07-21 | John Kerwin Stewart | Improvements in Hand Directed Tools and Apparatus for Actuating the same |
| DD240326A1 (en) * | 1985-08-21 | 1986-10-29 | Staatlicher Forstwirtschafts B | RESIN PLANE |
| JPH0681226U (en) * | 1993-04-30 | 1994-11-22 | 株式会社共立 | Pruning machine |
| US7913403B1 (en) * | 2006-06-08 | 2011-03-29 | Peter Douglas Willetts | Reciprocating pruning saw |
| US20140169858A1 (en) * | 2012-12-17 | 2014-06-19 | King Saud University | Device for tapping and inoculating trees |
| CN109220290A (en) * | 2013-11-08 | 2019-01-18 | 胡斯华纳有限公司 | Pruning tool |
| CN111528040A (en) * | 2020-05-19 | 2020-08-14 | 江西农业大学 | Intelligent self-adaptation pine adopts fat groove cutting device |
-
2022
- 2022-02-17 CN CN202210144567.0A patent/CN114514868B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190413957A (en) * | 1904-06-20 | 1904-07-21 | John Kerwin Stewart | Improvements in Hand Directed Tools and Apparatus for Actuating the same |
| DD240326A1 (en) * | 1985-08-21 | 1986-10-29 | Staatlicher Forstwirtschafts B | RESIN PLANE |
| JPH0681226U (en) * | 1993-04-30 | 1994-11-22 | 株式会社共立 | Pruning machine |
| US7913403B1 (en) * | 2006-06-08 | 2011-03-29 | Peter Douglas Willetts | Reciprocating pruning saw |
| US20140169858A1 (en) * | 2012-12-17 | 2014-06-19 | King Saud University | Device for tapping and inoculating trees |
| CN109220290A (en) * | 2013-11-08 | 2019-01-18 | 胡斯华纳有限公司 | Pruning tool |
| CN111528040A (en) * | 2020-05-19 | 2020-08-14 | 江西农业大学 | Intelligent self-adaptation pine adopts fat groove cutting device |
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| Publication number | Publication date |
|---|---|
| CN114514868B (en) | 2023-08-01 |
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