CN216982702U - A pruning device for natural forest - Google Patents

A pruning device for natural forest Download PDF

Info

Publication number
CN216982702U
CN216982702U CN202220532796.5U CN202220532796U CN216982702U CN 216982702 U CN216982702 U CN 216982702U CN 202220532796 U CN202220532796 U CN 202220532796U CN 216982702 U CN216982702 U CN 216982702U
Authority
CN
China
Prior art keywords
fixed
limiting
rotatably connected
spring
clamping jaw
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202220532796.5U
Other languages
Chinese (zh)
Inventor
张勇
刘海英
王增
吴家森
蒋仲龙
叶丽敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Provincial Public Welfare Forest And State Owned Forest Farm Management Station Zhejiang Natural Forest Protection And Management Center
Original Assignee
Zhejiang Provincial Public Welfare Forest And State Owned Forest Farm Management Station Zhejiang Natural Forest Protection And Management Center
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Provincial Public Welfare Forest And State Owned Forest Farm Management Station Zhejiang Natural Forest Protection And Management Center filed Critical Zhejiang Provincial Public Welfare Forest And State Owned Forest Farm Management Station Zhejiang Natural Forest Protection And Management Center
Priority to CN202220532796.5U priority Critical patent/CN216982702U/en
Application granted granted Critical
Publication of CN216982702U publication Critical patent/CN216982702U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Scissors And Nippers (AREA)

Abstract

The utility model provides a pruning device for natural forest trees. The pruning device for the natural forest trees comprises a connecting rod; the top end of the rotating structure is fixedly connected with the bottom end of the connecting rod, and the rotating structure comprises a connecting belt; the trimming structure is fixed at the top end of the connecting rod and comprises a connecting shell and a fixing column; the buffer structure is connected with the fixed column in a sliding mode and comprises a buffer box, a sliding chute, a first spring and a limiting rod; the stabilizing structure is arranged in the buffer box and comprises a limiting tooth, a clamping jaw, an anti-skidding tooth, a second spring, a connecting strip and a third spring. The pruning device for the natural forest trees, provided by the utility model, has the advantages of stable and safe pruning.

Description

A pruning device for natural forest
Technical Field
The utility model relates to the technical field of forestry mechanical equipment, in particular to a pruning device for natural forest trees.
Background
The natural forest is particularly flourishing in growth of trees in the original forest, many trees are very tall, a professional pruning tool is needed for pruning branches of the trees, most of related pruning tools on the market are simple in structure, single in function and not high in pruning efficiency, and after the trees are pruned, the pruned branches usually fall freely, so that good post-treatment is not obtained, and workers are easily injured by smashing.
Therefore, there is a need to provide a new pruning device for natural forest trees to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a pruning device for natural forest trees, which can stably and safely prune branches.
The pruning device for the natural forest trees provided by the utility model comprises: a connecting rod; the top end of the rotating structure is fixedly connected with the bottom end of the connecting rod, the rotating structure comprises a connecting belt, one end of the connecting belt is rotatably connected inside the rotating structure, and the connecting belt is rotatably connected inside the connecting rod; the trimming structure is fixed at the top end of the connecting rod and comprises a connecting shell and a fixed column, the bottom end of the connecting shell is fixedly connected with the top end of the connecting rod, and the fixed column is fixed in the connecting shell; the buffer structure is connected with the fixed column in a sliding mode and comprises a buffer box, a sliding chute, first springs and a limiting rod, the buffer box is connected with the fixed column in a sliding mode, the sliding chute is formed in the surface of the buffer box and is connected with the fixed column in a sliding mode, one end of each of the two first springs is fixed to each of two sides of the fixed column, the other end of each of the two first springs is fixed inside the buffer box, and the limiting rod is fixed to the side wall of the buffer box; the stable structure, the stable structure install in the inside of buffering box, the stable structure includes spacing tooth, clamping jaw, antiskid tooth, second spring, connecting strip and third spring, spacing tooth rotate connect in the inside of gag lever post, the bottom of clamping jaw rotate connect in the inside of buffering box, antiskid tooth is located respectively the gag lever post with the lateral wall of clamping jaw, the one end of second spring is fixed in the inside of gag lever post, the other end is fixed in the bottom of spacing tooth, the one end of connecting strip is fixed in the bottom of clamping jaw, the one end of third spring is fixed in the inside of buffering box, just the other end of third spring connect in the other end of connecting strip.
Preferably, revolution mechanic includes protection box, runner and power wheel, the top of protection box is fixed in the bottom of connecting rod, the runner rotate connect in the lateral wall of protection box, power wheel rotate connect in the inside of protection box, just the lateral wall of runner with fixed connection between the lateral wall of power wheel, just the one end of connecting band with power wheel rotates and connects.
Preferably, the bottom end of the protection box is connected with a handle, and the handle is made of silica gel.
Preferably, it still includes connecting plate, saw blade, drive gear, driven gear drive wheel, two to prune the structure the connecting plate symmetry is fixed in connect the inside of shell, the saw blade rotate connect in two between the connecting plate, drive gear rotate connect in two between the connecting plate, just drive gear with the saw blade meshing is connected, driven gear rotates connect in two between the connecting plate, just driven gear with meshing is connected between the saw blade, two the drive wheel is fixed in respectively drive gear with driven gear's lateral wall, and two through another one between the drive wheel the connecting band rotates and connects.
Preferably, the driving wheel on the side wall of the transmission gear is in rotary connection with the power wheel through the connecting belt.
Preferably, stable structure still includes the stopper, the one end of stopper is fixed in the inside of gag lever post, just the other end of stopper is contradicted the bottom of spacing tooth.
Preferably, the clamping jaw is of a special-shaped structure, and the clamping jaw and the top end of the limiting rod are of arc-shaped structures.
Compared with the related art, the pruning device for the natural forest has the following beneficial effects:
the utility model provides a pruning device for natural forest, wherein a user pushes a connecting rod to prune branches by utilizing a belt to squeeze a limiting rod and a clamping jaw, so that the branches enter the limiting range of the limiting rod and the clamping jaw, and meanwhile, the function of stably clamping the branches to be pruned is realized through the mutual matching among a limiting tooth, the clamping jaw, a second spring and a third spring, the branches can be prevented from accidentally falling off in the pruning process or after the pruning is finished, the safety and the stability of pruning the branches by workers are improved, and the working efficiency is improved. This has the advantage that can stably, safely prune the branch.
Drawings
Fig. 1 is a schematic structural view of a preferred embodiment of a pruning device for natural forest trees according to the present invention;
FIG. 2 is a schematic view of the internal structure of the trimming structure and the buffering structure shown in FIG. 1;
FIG. 3 is a side schematic view of the cushioning structure shown in FIG. 1;
fig. 4 is a schematic view of an internal structure of the rotation structure shown in fig. 1.
Reference numbers in the figures: 1. the connecting rod, 2, a handle, 3, a rotating structure, 31, a protection box, 32, a rotating wheel, 33, a power wheel, 34, a connecting belt, 4, a trimming structure, 41, a connecting shell, 42, a fixing column, 43, a connecting plate, 44, a saw blade, 45, a transmission gear, 46, a driven gear, 47, a transmission wheel, 5, a buffer structure, 51, a buffer box, 52, a sliding groove, 53, a first spring, 54, a limiting rod, 6, a stabilizing structure, 61, a limiting tooth, 62, a clamping jaw, 63, an anti-skidding tooth, 64, a second spring, 65, a limiting block, 66, a connecting strip, 67 and a third spring.
Detailed Description
The utility model is further described below with reference to the drawings and the embodiments.
Please refer to fig. 1, fig. 2, fig. 3 and fig. 4 in combination, wherein fig. 1 is a schematic structural view of a preferred embodiment of the pruning device for natural forest trees according to the present invention; FIG. 2 is a schematic view of the internal structure of the trimming structure and the buffering structure shown in FIG. 1; FIG. 3 is a side schematic view of the cushioning structure shown in FIG. 1; fig. 4 is a schematic view of an internal structure of the rotation structure shown in fig. 1. A pruning device for natural forest includes: a connecting rod 1; the top end of the rotating structure 3 is fixedly connected with the bottom end of the connecting rod 1, the rotating structure 3 comprises a connecting belt 34, one end of the connecting belt 34 is rotatably connected inside the rotating structure 3, and the connecting belt 34 is rotatably connected inside the connecting rod 1; the trimming structure 4 is fixed at the top end of the connecting rod 1, the trimming structure 4 comprises a connecting shell 41 and a fixing column 42, the bottom end of the connecting shell 41 is fixedly connected with the top end of the connecting rod 1, and the fixing column 42 is fixed inside the connecting shell 41; the buffer structure 5 is slidably connected with the fixed column 42, the buffer structure 5 includes a buffer box 51, a sliding chute 52, first springs 53 and a limit rod 54, the buffer box 51 is slidably connected with the fixed column 42, the sliding chute 52 is arranged on the surface of the buffer box 51, the sliding chute 52 is slidably connected with the fixed column 42, one end of each of the two first springs 53 is fixed on each of two sides of the fixed column 42, the other end of each of the two first springs is fixed in the buffer box 51, and the limit rod 54 is fixed on the side wall of the buffer box 51; the stabilizing structure 6 is installed inside the buffer box 51, the stabilizing structure 6 includes a limiting tooth 61, a clamping jaw 62, an anti-slip tooth 63, a second spring 64, a connecting strip 66 and a third spring 67, the limiting tooth 61 is rotatably connected inside the limiting rod 54, the bottom end of the clamping jaw 62 is rotatably connected inside the buffer box 51, the anti-slip tooth 63 is respectively arranged on the side walls of the limiting rod 54 and the clamping jaw 62, one end of the second spring 64 is fixed inside the limiting rod 54, the other end of the second spring is fixed at the bottom end of the limiting tooth 61, one end of the connecting strip 66 is fixed at the bottom of the clamping jaw 62, one end of the third spring 67 is fixed inside the buffer box 51, and the other end of the third spring 67 is connected at the other end of the connecting strip 66.
In a specific implementation process, as shown in fig. 1 and 4, the rotating structure 3 includes a protection box 31, a rotating wheel 32 and a power wheel 33, a top end of the protection box 31 is fixed to a bottom end of the connecting rod 1, the rotating wheel 32 is rotatably connected to a side wall of the protection box 31, the power wheel 33 is rotatably connected to an interior of the protection box 31, the side wall of the rotating wheel 32 is fixedly connected to a side wall of the power wheel 33, and one end of the connecting belt 34 is rotatably connected to the power wheel 33, the rotating structure 3 is configured to remotely control the trimming structure 4, so that the trimming structure 4 is more conveniently controlled to trim branches, and the rotating wheel 32 is rotated to drive the trimming structure to operate, so that strength of a user can be saved.
In the specific implementation process, as shown in fig. 1 and 4, a handle 2 is connected to the bottom end of the protection box 31, and the handle 2 is made of silica gel, so that it is convenient for a user to hold the connection rod 1 and the whole structure, and the operation is convenient, and it is also convenient for the user to rotate the rotating wheel 32, so as to improve the operation stability.
In the specific implementation process, as shown in fig. 1, 2 and 3, the trimming structure 4 further includes a connecting plate 43, a saw blade 44, a transmission gear 45, a driven gear 46 and a transmission wheel 47, two connecting plates 43 are symmetrically fixed inside the connecting shell 41, the saw blade 44 is rotatably connected between the two connecting plates 43, the transmission gear 45 is rotatably connected between the two connecting plates 43, and the driving gear 45 is engaged with the saw blade 44, the driven gear 46 is rotatably connected between the two connecting plates 43, the driven gear 46 is engaged with the saw blade 44, the two driving wheels 47 are respectively fixed on the side walls of the driving gear 45 and the driven gear 46, and the two driving wheels 47 are rotatably connected through the other connecting belt 34, in order to trim branches quickly, and the cooperation with the rotating structure 3 can facilitate and treat branches quickly.
In a specific implementation process, as shown in fig. 2 and 4, the driving wheel 47 on the side wall of the driving gear 45 is rotatably connected with the power wheel 33 through the connecting band 34, and the driving gear 45 and the driven gear 46 are driven to rotate through the transmission of the connecting band 34, so as to drive the saw blade 44 to rotate, so that the whole process can be operated in a long distance, branches at high positions can be easily trimmed, and a use scene is improved.
In a specific implementation process, as shown in fig. 2, the stabilizing structure 6 further includes a limiting block 65, one end of the limiting block 65 is fixed inside the limiting rod 54, and the other end of the limiting block 65 abuts against the bottom end of the limiting tooth 61, the limiting block 65 is used for limiting a rotation angle of the limiting tooth 63, so that after the clamping jaw 62 and the limiting rod 54 clamp a tree branch to be pruned, the limiting block 65 will abut against the limiting tooth 61, and the limiting tooth 61 limits the tree branch, thereby preventing the tree branch from being easily released and improving stability.
In the specific implementation process, as shown in fig. 1 and 2, the clamping jaw 62 is of a special-shaped structure, and the top ends of the clamping jaw 62 and the limiting rod 54 are both of arc-shaped structures, so that the clamping jaw 62 can be further spread open for branches to be trimmed, thereby facilitating the access to the limited range of the limiting rod 54 and the clamping jaw 62.
The working principle of the pruning device for the natural forest trees provided by the utility model is as follows:
when in use, firstly, a user holds the handle 2 with one hand, holds the connecting rod 1 with the other hand, and controls the connecting rod 1 to drive the trimming structure 4 and the stabilizing structure 6 to move to the vicinity of the branch to be trimmed, after the stabilizing structure 6 is close to the branch to be trimmed, the top ends of the limiting rod 54 and the clamping jaw 62 are abutted against the trunk, and simultaneously, the user pushes the connecting rod 1 with force to press the branch against the top ends of the limiting rod 54 and the clamping jaw 62, so that the branch can enter the limiting range of the limiting rod 54 and the clamping jaw 62 more easily and conveniently due to the fact that the top ends of the limiting rod 54 and the clamping jaw 62 are of open arc structures; during the extrusion process, the branches push the limiting teeth 61 on the inner wall of the limiting rod 54, the limiting teeth 61 rotate inside the limiting rod 54, finally, the limiting teeth 61 rotate inside the limiting rod 54, the limiting teeth 61 pull the second spring 64 to move, the second spring 64 extends, and meanwhile, the limiting teeth 61 are separated from the limiting block 65; meanwhile, the clamping jaw 62 is squeezed by branches, the bottom end of the clamping jaw is rotated in the buffer box 51 to drive the connecting strip 66 to rotate, the rotation of the connecting strip 66 can squeeze the third spring 67, so that the third spring 6 is shortened, when branches enter between the limiting rod 54 and the clamping jaw 62, the squeezing of the branches is lost, the second spring 64 is reset to pull the limiting tooth 61 to rotate, the limiting tooth 61 is rotated out from the limiting rod 54, finally the limiting tooth 61 abuts against the limiting block 65, so that the limiting tooth 61 is stabilized, meanwhile, the third spring 67 is reset to drive the clamping jaw 62 to reset, the clamping jaw 62 is retracted to clamp the branches in cooperation with the limiting rod 54 and the limiting tooth 61, and meanwhile, the limiting rod 54 and the anti-skid tooth 63 on the side wall of the clamping jaw 62 are tightly attached to the surface of the branches, the friction force of the stressed surface is greatly increased, the stability of clamping branches is improved again, so that the branches are prevented from falling off, the limiting effect on the branches is improved, after the branches to be trimmed are stably clamped, the saw blades 44 are also contacted with the surfaces of the branches, a user rotates the rotating wheel 32, the rotating wheel 32 drives the power wheel 33 to rotate in the protection box 31, the power wheel 33 drives the driving wheels 47 on the side walls of the transmission gears 45 to rotate through the connecting belt 34, the driving wheels 47 drive the driving wheels 47 on the side walls of the driven gears 46 to rotate through the other connecting belt 34, the two driving wheels 47 simultaneously drive the transmission gears 45 and the driven gears 46 to rotate, so that the saw blades 44 between the two connecting plates 43 are driven to rotate, and the trimming on the branches is further realized, as the saw blade 44 trims the branches, a user needs to apply a lateral force to control the trimming structure 4 to be always tightly attached to the surface of the branches through the connecting rod 1, in the process, the two first springs 53 in the buffer box 51 are mutually matched, so that the trimming structure 4 can slide in the sliding groove 52, and thus, the trimming structure 4 can be always ensured to be in contact with the branches under the condition that the stabilizing structure 6 and the branches are kept relatively static, and the success rate and the efficiency of trimming the branches are improved; after cutting the branch, stable structure 6 still can clip the branch of being cut, avoids its free fall, and the accessible user retrieves connecting rod 1 makes the branch follow stable structure 6 moves together steadily, can avoid the branch to injure risks such as staff by a crashing object. The device has the advantage of being capable of stably and safely pruning branches.
Compared with the related art, the pruning device for the natural forest trees provided by the utility model has the following beneficial effects:
the utility model provides a pruning device for natural forest trees, wherein a user pushes a connecting rod 1 to utilize a belt to prune branches to squeeze a limiting rod 54 and a clamping jaw 62, so that the branches enter the limiting range of the limiting rod 54 and the clamping jaw 62, and meanwhile, the function of stably clamping the branches to be pruned is realized through the mutual matching among a limiting tooth 61, the clamping jaw 62, a second spring 64 and a third spring 67, the branches can be prevented from accidentally falling off in the pruning process or after the pruning is finished, the safety and the stability of pruning the branches by workers are improved, and the working efficiency is improved. This has the advantage that can stably, safely prune the branch.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.

Claims (7)

1. A pruning device for natural forest, characterized by, includes:
a connecting rod (1);
the top end of the rotating structure (3) is fixedly connected with the bottom end of the connecting rod (1), the rotating structure (3) comprises a connecting belt (34), one end of the connecting belt (34) is rotatably connected inside the rotating structure (3), and the connecting belt (34) is rotatably connected inside the connecting rod (1);
the trimming structure (4), the trimming structure (4) is fixed at the top end of the connecting rod (1), the trimming structure (4) comprises a connecting shell (41) and a fixing column (42), the bottom end of the connecting shell (41) is fixedly connected with the top end of the connecting rod (1), and the fixing column (42) is fixed inside the connecting shell (41);
the buffer structure (5) is connected with the fixed column (42) in a sliding manner, the buffer structure (5) comprises a buffer box (51), a sliding groove (52), first springs (53) and a limiting rod (54), the buffer box (51) is connected with the fixed column (42) in a sliding manner, the sliding groove (52) is formed in the surface of the buffer box (51), the sliding groove (52) is connected with the fixed column (42) in a sliding manner, one ends of the two first springs (53) are respectively fixed to two sides of the fixed column (42), the other ends of the two first springs are fixed to the inside of the buffer box (51), and the limiting rod (54) is fixed to the side wall of the buffer box (51);
the stabilizing structure (6) is installed inside the buffer box (51), the stabilizing structure (6) comprises a limiting tooth (61), a clamping jaw (62), an anti-skidding tooth (63), a second spring (64), a connecting strip (66) and a third spring (67), the limiting tooth (61) is rotatably connected inside the limiting rod (54), the bottom end of the clamping jaw (62) is rotatably connected inside the buffer box (51), the anti-skidding tooth (63) is respectively arranged on the limiting rod (54) and the side wall of the clamping jaw (62), one end of the second spring (64) is fixed inside the limiting rod (54), the other end of the second spring is fixed at the bottom end of the limiting tooth (61), one end of the connecting strip (66) is fixed at the bottom of the clamping jaw (62), and one end of the third spring (67) is fixed inside the buffer box (51), and the other end of the third spring (67) is connected to the other end of the connecting bar (66).
2. The pruning device for natural forest trees according to claim 1, wherein the rotating structure (3) comprises a protection box (31), a rotating wheel (32) and a power wheel (33), the top end of the protection box (31) is fixed at the bottom end of the connecting rod (1), the rotating wheel (32) is rotatably connected with the side wall of the protection box (31), the power wheel (33) is rotatably connected with the inside of the protection box (31), the side wall of the rotating wheel (32) is fixedly connected with the side wall of the power wheel (33), and one end of the connecting belt (34) is rotatably connected with the power wheel (33).
3. The pruning device for natural forest trees according to claim 2, wherein a handle (2) is connected to the bottom end of the protection box (31), and the handle (2) is made of silica gel.
4. The pruning device for natural forest trees according to claim 3, wherein the pruning structure (4) further comprises two connecting plates (43), a saw blade (44), a transmission gear (45) and a driven gear (46), wherein the two connecting plates (43) are symmetrically fixed inside the connecting shell (41), the saw blade (44) is rotatably connected between the two connecting plates (43), the transmission gear (45) is meshed with the saw blade (44), the driven gear (46) is rotatably connected between the two connecting plates (43), the driven gear (46) is meshed with the saw blade (44), the two driving wheels (47) are respectively fixed on the side walls of the transmission gear (45) and the driven gear (46), and the two driving wheels (47) are rotationally connected through the other connecting belt (34).
5. The pruning device for natural forest trees according to claim 4, wherein the driving wheel (47) on the side wall of the transmission gear (45) is rotatably connected with the power wheel (33) through the connecting belt (34).
6. The pruning device for natural forest and trees according to claim 1, wherein the stabilizing structure (6) further comprises a limiting block (65), one end of the limiting block (65) is fixed inside the limiting rod (54), and the other end of the limiting block (65) abuts against the bottom end of the limiting tooth (61).
7. The pruning device for natural forest trees according to claim 1, wherein the clamping jaw (62) is of a special-shaped structure, and the top ends of the clamping jaw (62) and the limiting rod (54) are of arc-shaped structures.
CN202220532796.5U 2022-03-13 2022-03-13 A pruning device for natural forest Expired - Fee Related CN216982702U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220532796.5U CN216982702U (en) 2022-03-13 2022-03-13 A pruning device for natural forest

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220532796.5U CN216982702U (en) 2022-03-13 2022-03-13 A pruning device for natural forest

Publications (1)

Publication Number Publication Date
CN216982702U true CN216982702U (en) 2022-07-19

Family

ID=82368953

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220532796.5U Expired - Fee Related CN216982702U (en) 2022-03-13 2022-03-13 A pruning device for natural forest

Country Status (1)

Country Link
CN (1) CN216982702U (en)

Similar Documents

Publication Publication Date Title
CN101084723B (en) Scissors type pruning shear
AU2004203167A1 (en) Vegetation pruning device
WO2022134210A1 (en) Handheld chain saw
CN107047233B (en) Portable automatic directional felling machine of garden management
CN216982702U (en) A pruning device for natural forest
CN108811858B (en) Multi-kinetic energy tree trimming device
CN209497975U (en) A kind of gardens pruning tool
CN112106553A (en) Vertical tree branch pruning equipment
CN112136541A (en) Electric safe and convenient pruning and fruit picking tool
CN210381972U (en) Quick pruning device of mao bamboo
CN211430168U (en) Fruit tree branch pruning device
CN203251688U (en) Long-rod-type tree-branch-pruning scissors
US6293019B1 (en) Ratchet cable cutter
CN111201986A (en) Device for cutting trees
CN206923339U (en) A kind of municipal anti-skidding clipping device of gardens branches of tall trees
CN207327195U (en) A kind of two-in-one machine of sawmilling pruning
US3029663A (en) Clamp for holding chain saws for sharpening
CN216991672U (en) Multifunctional adjustable valve wrench
CN219295749U (en) Cutting mechanism of handheld special-shaped ribbon bundling machine
CN220342938U (en) Novel tree pruning device
CN218451193U (en) Ornamental trees and shrubs trimming means
CN217389469U (en) Portable hand-held hedge shears
CN218662523U (en) Binding pliers
CN213245831U (en) Automatic flexible safe formula garden saw is pruned in gardens
CN218042932U (en) Safe chain saw for forestry timber felling

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20220719