CN204968655U - Active chain repairment saw bit - Google Patents
Active chain repairment saw bit Download PDFInfo
- Publication number
- CN204968655U CN204968655U CN201520745870.1U CN201520745870U CN204968655U CN 204968655 U CN204968655 U CN 204968655U CN 201520745870 U CN201520745870 U CN 201520745870U CN 204968655 U CN204968655 U CN 204968655U
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- Prior art keywords
- saw blade
- chain
- driving
- substrate
- finishing
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- Expired - Fee Related
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- 239000000758 substrate Substances 0.000 claims abstract description 40
- 210000000515 tooth Anatomy 0.000 claims description 27
- 230000033001 locomotion Effects 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 1
- 241000763859 Dyckia brevifolia Species 0.000 description 139
- 238000010413 gardening Methods 0.000 description 17
- 238000009966 trimming Methods 0.000 description 7
- 241000196324 Embryophyta Species 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000010485 coping Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012913 prioritisation Methods 0.000 description 2
- 238000013138 pruning Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
Landscapes
- Sawing (AREA)
Abstract
The utility model discloses an active chain repairment saw bit, which comprises a substrate, the driving gear, driven gear and end -to -end connection's closed driving chain, driving gear and driven gear set up at the upper surface of base plate and are in the both ends of base plate along length direction respectively, install the motor on the driving gear, the driving chain is in driving gear and driven gear's the outside and is connected with driving gear and driven gear meshing, the base plate is equipped with a plurality of spacing tooth that stretches out along one side of width direction, a plurality of spacing teeth form the spacing groove along the length direction evenly distributed and the space between the adjacent spacing tooth of base plate, the outside of driving chain is fixed with dispersed a plurality of saw bits, be equipped with on the base plate the main davit bearing that is used for installing main davit with be used for the installation from the davit from the davit bearing. The utility model discloses it has simple structure, flexible operation, the effectual advantage of repairment.
Description
Technical field
The utility model relates to a kind of gardening trimming device, especially relates to a kind of active chain finishing saw blade used for gardening trimming device.
Background technology
In urban afforestation, gardening field of planting, beautify object for reaching, staff needs regularly to repair the flowers and plants such as lawn wherein, shrub and trees, and to avoid its overgrowing or to form specific shape, what make it meet designing requirement or people views and admires psychology.The traditional approach that gardening shrub is repaired mainly operator manually pruning shear repair, not only time-consuming but also require great effort, and require higher to the operative skill of staff.For solving traditional gardening finishing Problems existing, various types of electronic trimming device has been researched and developed in this area, its structure and operation principle are substantially identical, mainly comprise handle, motor, transmission mechanism, cutter and bottom knife, cutter and bottom knife is driven to do crisscross motion by motor and transmission mechanism in using, to cut off flowers and plants or shrub between cutter and bottom knife, thus reach the object of finishing.But blade is easily stuck when this kind of trimming device runs into thicker shrub, cannot carry out follow-up normal finishing process, be easy to the problem causing finishing uneven.And the motor of this kind of trimming device is arranged on handle symbol closely usually, easily damages the person.
Utility model content
The purpose of this utility model is to provide a kind of active chain finishing saw blade, it has the advantage that structure is simple, flexible operation, finishing effect are good, adopt gardening trimming device of the present utility model can effectively sawed-off thicker shrub, work often can not cannot work because being stuck, can efficiency increase work efficiency.
Easily blocked by thicker shrub for solving gardening trimming device in prior art and the normal pruning of work cannot be carried out, affect operating efficiency, and easily cause gardening to repair uneven technical problem, a kind of active chain finishing saw blade of the utility model, comprise substrate, driving gear, the closed driving-chain that driven gear is connected with head and the tail, described driving gear and driven gear are arranged on the upper surface of substrate and are in substrate two ends along its length respectively, driving gear is provided with motor, described driving-chain have the initiative gear and driven gear outside and be connected with a joggle with driving gear and driven gear, substrate side is in the width direction provided with the multiple limiting tooths stretched out, multiple limiting tooth to be uniformly distributed and space between adjacent limiting tooth forms stopper slot along the length direction of substrate, the outside of driving-chain is fixed with multiple saw blades of dispersion, described saw blade carries out skimming on the upside of the stopper slot between adjacent limiting tooth in cycle rotation process following driving-chain, substrate is also provided with main arm bearing for installing main arm and for install from arm from arm bearing.
Further, a kind of active chain finishing saw blade of the utility model, wherein, described multiple saw blade is spaced lower saw blade and upper saw blade, lower saw blade and upper saw blade are separately fixed at the downside of driving-chain and upside and arrange a upper saw blade between every two lower saw blades, the sum of lower saw blade and upper saw blade is uniformly distributed along the periphery of driving-chain, lower saw blade comprises horizontally disposed first saw blade and the second saw blade setting up and down, the lower end of the second saw blade and being fixedly connected with away from driving-chain one end of the first saw blade, upper saw blade is identical with the structure of lower saw blade and become in the vertical direction and oppositely arrange.
Further, a kind of active chain finishing saw blade of the utility model, wherein, described multiple saw blade is lower saw blade, described lower saw blade is fixed on the downside of driving-chain and the periphery along driving-chain is uniformly distributed, lower saw blade comprises horizontally disposed first saw blade and the second saw blade setting up and down, the lower end of the second saw blade and being fixedly connected with away from driving-chain one end of the first saw blade.
Further, a kind of active chain finishing saw blade of the utility model, wherein, the edge of a knife of described first saw blade and the second saw blade is curved edge, and the first saw blade is greater than the other end width away from driving-chain relative to one end width of driving-chain, the second saw blade is greater than the other end width away from the first saw blade relative to one end width of the first saw blade.
Further, a kind of active chain finishing saw blade of the utility model, wherein, the angle that described first saw blade and the second saw blade are formed is 90 ° ~ 120 °.
Further, a kind of active chain finishing saw blade of the utility model, wherein, described limiting tooth dual-side be respectively arc and linear and make front end form cusp-shaped, limiting tooth is provided with arc-shaped slot at straight line avris, and the opening of described draw-in groove is towards relative with the direction of motion of saw blade.
Further, a kind of active chain finishing saw blade of the utility model, wherein, described main arm bearing is arranged on substrate 1/3rd places along its length and is in the near side of distance driving gear; Describedly to arrange between main arm bearing and driving gear from arm bearing.
Further, a kind of active chain finishing saw blade of the utility model, wherein, both sides along its length and in the width direction and be respectively equipped with the protective plate of vertical setting relative to the opposite side of limiting tooth on the upper surface of described substrate.
Further, a kind of active chain finishing saw blade of the utility model, wherein, also comprise cover plate, described cover plate is provided with recessed groove, the bottom land of recessed groove is all offered screwed hole with the correspondence position of substrate and is made by screw both be fixedly connected with, bottom land and the main arm bearing of recessed groove and all offer through hole from the correspondence position of arm bearing, and cover plate in the width direction and the space be between the part of recessed groove both sides and substrate forms guide-track groove.
A kind of active chain finishing saw blade of the utility model compared with prior art, have the following advantages: the utility model is by arranging substrate, driving gear, the closed driving-chain that driven gear is connected with head and the tail, driving gear and driven gear are arranged on the upper surface of substrate and are in substrate two ends along its length respectively, and on driving gear mounted motor, allow driving-chain have the initiative gear and driven gear outside and be connected with a joggle with driving gear and driven gear, in substrate side in the width direction (i.e. front side), the multiple limiting tooths stretched out are set, multiple limiting tooth is uniformly distributed along the length direction of substrate, multiple saw blades of dispersion are fixed in the outside of driving-chain, and the main arm bearing arranged on substrate for installing main arm and for install from arm from arm bearing.After above vibrational power flow, by main arm bearing with from arm bearing, the utility model is installed to crosshead, and the motor on driving gear is connected with power supply and can comes into operation.During actual use, the utility model moves forward in length of run, the gardening plant that need prune away can enter in the stopper slot of adjacent limiting tooth formation respectively, and drive saw blade to make cycle rotation by driving-chain, saw blade will be cut off gardening plant thus reach the object of finishing.Motor is arranged on driving gear by the utility model, and define active chain finishing saw blade, the health of distance operating personnel is comparatively far away, reduces the danger damaged the person, improves safety.Saw blade design is the version comprising horizontally disposed first saw blade and the second saw blade setting up and down by the utility model, and makes being fixedly connected with away from driving-chain one end of the lower end of the second saw blade and the first saw blade.When reality uses, first saw blade can cut off the gardening shrub of normal thickness, when running into thicker shrub, by the progressively shear action of the second saw blade, the diameter of shrub can be made to be cut carefully gradually, and finally cut off, avoid coping saw blade and be stuck and the situation that cannot normally work, enhance practical new property.
Below in conjunction with embodiment shown in accompanying drawing, a kind of active chain finishing saw blade of the utility model is described in further detail:
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of a kind of active the first embodiment of chain finishing saw blade of the utility model;
Fig. 2 is the vertical view of a kind of active the first embodiment of chain finishing saw blade of the utility model;
Fig. 3 is the vertical view of substrate and limiting tooth in a kind of active the first embodiment of chain finishing saw blade of the utility model;
Fig. 4 is the schematic perspective view of part driving-chain and saw blade in a kind of active the first embodiment of chain finishing saw blade of the utility model;
Fig. 5 is the schematic perspective view of part driving-chain and saw blade in a kind of active chain finishing saw blade the second embodiment of the utility model;
Fig. 6 is the schematic perspective view of part driving-chain and saw blade in a kind of active the third embodiment of chain finishing saw blade of the utility model;
Fig. 7 is the schematic perspective view of a kind of active chain finishing saw blade of the utility model the 4th kind of embodiment;
Fig. 8 is the three-dimensional exploded view of a kind of active chain finishing saw blade of the utility model the 4th kind of embodiment;
Fig. 9 is that A-A in Fig. 7 is to schematic diagram;
Figure 10 is the schematic perspective view of saw blade in a kind of active chain finishing saw blade of the utility model;
Figure 11 is the left view of saw blade in a kind of active chain finishing saw blade of the utility model.
Embodiment
A kind of active chain of the utility model is repaired in the schematic diagram of the first embodiment of saw blade as shown in Figures 1 to 4, comprise substrate 1, driving gear 2, driven gear 3 and the closed driving-chain 4 be connected from beginning to end, driving gear 2 and driven gear 3 are arranged on the upper surface of substrate 1 and make both be in substrate 1 two ends along its length respectively, and on driving gear 2 mounted motor.Allow driving-chain 4 have the initiative gear 2 and driven gear 3 outside and itself and driving gear 2 and driven gear 3 are connected with a joggle.In substrate 1 side in the width direction, the multiple limiting tooths 5 stretched out are set, multiple limiting tooth 5 is uniformly distributed along the length direction of substrate 1, just stopper slot is defined, to carry out restriction site to the gardening shrub entered wherein, anti-sliding stop in using between limiting tooth 5 adjacent thus.Fix multiple saw blades 6 of dispersion in the outside of driving-chain 4, and make saw blade 6 carry out skimming on the upside of the stopper slot between adjacent limiting tooth 5 in the process of cycle rotation, to shear the gardening shrub entered in stopper slot following driving-chain 4.Also also be provided with on substrate 1 simultaneously main arm bearing 7 for installing main arm and for install from arm from arm bearing 8, the utility model is installed on operation support.
After being arranged to above structure, by main arm bearing 7 with from arm bearing 8, the utility model is installed to crosshead, and can come into operation after the motor on driving gear 2 is connected with power supply.During actual use, the utility model moves forward in length of run, the gardening plant that need prune away can enter in the stopper slot of adjacent limiting tooth 5 formation respectively, and drive saw blade 6 to make cycle rotation by driving-chain 4, saw blade 6 will be cut off gardening plant thus reach the object of finishing.Motor is arranged on driving gear 2 by the utility model, and define active chain finishing saw blade, the health of distance operating personnel is comparatively far away, reduces the danger damaged the person, improves peace conjunction property.
In the first embodiment, multiple saw blade 6 adopts the version of spaced lower saw blade and upper saw blade, lower saw blade and upper saw blade are separately fixed at downside and the upside of driving-chain 4, and saw blade on is set between every two lower saw blades, make the sum of lower saw blade and upper saw blade be uniformly distributed along the periphery of driving-chain 4 simultaneously.Lower saw blade design is become to comprise the structure of horizontally disposed first saw blade 601 and the second saw blade 602 setting up and down, and make being fixedly connected with away from driving-chain 4 one end of the lower end of the second saw blade 602 and the first saw blade 601.Upper saw blade design is become identical with lower saw-blade structure, and makes both become oppositely setting in the vertical direction.The saw blade of this structure is when reality uses, first saw blade can cut off the gardening shrub of normal thickness, when running into thicker shrub, by the progressively shear action of the second saw blade, the diameter of shrub can be made to cut carefully gradually, and finally cut disconnected, avoid coping saw blade and be stuck and the situation that cannot normally work, enhance practical new property.Upper saw blade design is become identical with lower saw-blade structure and itself and lower saw blade are become at above-below direction and oppositely arrange, carrying out in working angles to thicker shrub, lower saw blade and the otch of upper saw blade on shrub can be made not to overlap, thus form the otch of one fixed width, effectively can avoid binding, accelerate cutting speed, raise the efficiency.
It should be noted that, driving-chain 4 in the first embodiment of the utility model adopts the version of chain post and brace, in saw blade 6, one end of the first saw blade 601 uses as brace, but be not limited to this mode, the set-up mode of saw blade 6 is also not limited to the formation that the first embodiment is enumerated.The schematic perspective view of driving-chain 4 and saw blade 6 in the utility model the second embodiment as shown in Figure 5, the version of the first embodiment medium chain post that driving-chain 4 adopts and brace, and multiple saw blade 6 all adopts lower saw blade form, and make lower saw blade be fixed on the downside of driving-chain 4 and the periphery along driving-chain 4 is uniformly distributed, lower veneer sawing machine comprises horizontally disposed first saw blade 601 and second lower end of saw blade 602, second saw blade 602 setting up and down and being fixedly connected with away from driving-chain 4 one end of the first saw blade 601.The difference of the second embodiment and the first embodiment is: only arrange lower saw blade and do not arrange upper and lower saw blade, though do not have the first embodiment to the cutting effect of thicker shrub, can realize the purpose of this utility model equally.The schematic perspective view of driving-chain 4 and saw blade 6 in the third embodiment of the utility model as described in Figure 6, what its driving-chain 4 adopted is chip driving-chain, and only arranges multiple lower saw blade in the downside of driving-chain 4, can realize the purpose of this utility model equally.It is pointed out that the driving-chain adopting this version, driving gear 2 and driven gear 3 should be arranged to the structure that adapts, with the use of; Saw on driving-chain 4 also can be arranged to the form identical with the first embodiment, to improve cutting effect, strengthens practicality.
In the schematic diagram of the 4th kind of embodiment of a kind of active chain finishing of the utility model saw blade as shown in Figure 7 to 9, both sides along its length and in the width direction and be provided with the protective plate 9 of vertical setting respectively relative to the opposite side of limiting tooth 5 on the top surface of the substrate 1.Protective plate 9 is set and can further improve practicality of the present utility model and safety.Also be provided with cover plate 10 simultaneously, by arranging recessed groove 101 on cover plate 10, screwed hole is offered at the bottom land of recessed groove 101 and the correspondence position of substrate 1, both are made to be fixedly connected with by screw, and offer through hole, so that main arm bearing 7 and arm bearing 8 pass from corresponding through hole at the bottom land of recessed groove 101 and the correspondence position of main arm bearing 7 and arm bearing (8).This structure can make cover plate 10 in the width direction and the space be between the part of recessed groove 101 both sides and substrate 1 forms the guide-track groove 102 limiting driving-chain 4, thus avoids driving-chain 4 in the positioning of the course of work, and reduces vibrations, strengthens stability.
As prioritization scheme, in the utility model, the edge of a knife of the first saw blade 601 and the second saw blade 602 is all designed to curved edge, and make the first saw blade 601 be greater than the other end width away from driving-chain 4 relative to one end width of driving-chain 4, make the second saw blade 602 be greater than the other end width away from the first saw blade 601 relative to one end width of the first saw blade 601.Adopt curved edge effectively can reduce the resistance of shrub to the first saw blade 601 and the second saw blade 602, strengthen cutting force, thus submit efficiency to; The two ends of the first saw blade 601 and the second saw blade 602 are designed to different width, can strengthen cutting force further, raise the efficiency.In actual applications, the angle that the first saw blade 601 and the second saw blade 602 are formed can be designed to 90 ° ~ 120 °, experiment shows, the saw blade 6 of this structure both can ensure actualizing technology object, can ensure cutting speed and effect again.
As prioritization scheme, in the utility model, the dual-side of limiting tooth 5 is designed to arc and linear respectively, and makes its front end form cusp-shaped, the front end of limiting tooth 5 can be avoided to stop gardening shrub, make shrub enter stopper slot smoothly; Arc-shaped slot is set at the straight line avris of limiting tooth 5 simultaneously, and makes the opening of draw-in groove towards relative with the direction of motion of saw blade 6.In actual use, when saw blade 6 pairs of shrubs are sheared, arc-shaped slot can avoid shrub to slide, thus improves practicality.In addition, main arm bearing 7 is arranged on substrate 1 1/3rd places along its length and is in the near side of distance driving gear 2 by the utility model, will arrange the position between main arm bearing 7 and driving gear 2 from arm bearing 8.In actual applications, due to driving gear 2 being provided with motor, driven gear can be overweighted, and main arm bearing 7 is arranged on the side of substrate 1 near driving gear 2, and arrange from arm bearing 8 between, the stress balance at substrate two ends can be ensured on the one hand, strengthen stability; Rotating around main arm from arm by manipulation on the other hand, changing the direction of finishing saw blade, when running into the similar objects such as line bar, effectively avoid by this mode, and the movement not needing operating personnel to carry out in a big way, muscle power and time can be saved, correspondingly increase work efficiency.
Above embodiment is only the description carried out preferred embodiment of the present utility model; the restriction not the utility model request protection domain carried out; under the prerequisite not departing from the utility model design principle and spirit; the various forms of distortion that this area engineers and technicians make according to the technical solution of the utility model, all should fall in protection domain that claims of the present utility model determine.
Claims (9)
1. an active chain finishing saw blade, it is characterized in that: comprise substrate (1), driving gear (2), the closed driving-chain (4) that driven gear (3) is connected with head and the tail, described driving gear (2) and driven gear (3) are arranged on the upper surface of substrate (1) and are in substrate (1) two ends along its length respectively, (2) are provided with motor to driving gear, described driving-chain (4) have the initiative gear (2) and driven gear (3) outside and be connected with a joggle with driving gear (2) and driven gear (3), substrate (1) side is in the width direction provided with the multiple limiting tooths (5) stretched out, multiple limiting tooth (5) to be uniformly distributed and space between adjacent limiting tooth (5) forms stopper slot along the length direction of substrate (1), the outside of driving-chain (4) is fixed with multiple saw blades (6) of dispersion, described saw blade (6) carries out skimming on the upside of the stopper slot between adjacent limiting tooth (5) in cycle rotation process following driving-chain (4), substrate (1) is also provided with main arm bearing (7) for installing main arm and for install from arm from arm bearing (8).
2. according to one according to claim 1 active chain finishing saw blade, it is characterized in that: described multiple saw blade (6) is spaced lower saw blade and upper saw blade, lower saw blade and upper saw blade are separately fixed at the downside of driving-chain (4) and upside and arrange a upper saw blade between every two lower saw blades, the sum of lower saw blade and upper saw blade is uniformly distributed along the periphery of driving-chain (4), lower saw blade comprises horizontally disposed first saw blade (601) and the second saw blade (602) setting up and down, the lower end of the second saw blade (602) and being fixedly connected with away from driving-chain (4) one end of the first saw blade (601), upper saw blade is identical with the structure of lower saw blade and become in the vertical direction and oppositely arrange.
3. according to one according to claim 1 active chain finishing saw blade, it is characterized in that: described multiple saw blade (6) is lower saw blade, described lower saw blade is fixed on the downside of driving-chain (4) and the periphery along driving-chain (4) is uniformly distributed, lower saw blade comprises horizontally disposed first saw blade (601) and the second saw blade (602) setting up and down, the lower end of the second saw blade (602) and being fixedly connected with away from driving-chain (4) one end of the first saw blade (601).
4. according to the active chain finishing of the one described in Claims 2 or 3 saw blade, it is characterized in that: the edge of a knife of described first saw blade (601) and the second saw blade (602) is curved edge, and the first saw blade (601) is greater than the other end width away from driving-chain (4) relative to one end width of driving-chain (4), the second saw blade (602) is greater than the other end width away from the first saw blade (601) relative to one end width of the first saw blade (601).
5., according to one according to claim 4 active chain finishing saw blade, it is characterized in that: the angle that described first saw blade (601) and the second saw blade (602) are formed is 90 ° ~ 120 °.
6. according to one according to claim 1 active chain finishing saw blade, it is characterized in that: described limiting tooth (5) dual-side be respectively arc and linear and make front end form cusp-shaped, limiting tooth (5) is provided with arc-shaped slot at straight line avris, and the opening of described draw-in groove is towards relative with the direction of motion of saw blade (6).
7. according to one according to claim 1 active chain finishing saw blade, it is characterized in that: described main arm bearing (7) is arranged on substrate (1) 1/3rd places along its length and is in the near side of distance driving gear (2); Describedly to arrange between main arm bearing (7) and driving gear (2) from arm bearing (8).
8. according to one according to claim 1 active chain finishing saw blade, it is characterized in that: both sides along its length and in the width direction and be respectively equipped with the protective plate (9) of vertical setting relative to the opposite side of limiting tooth (5) on the upper surface of described substrate (1).
9. according to one according to claim 1 active chain finishing saw blade, it is characterized in that: also comprise cover plate (10), described cover plate (10) is provided with recessed groove (101), the bottom land of recessed groove (101) is all offered screwed hole with the correspondence position of substrate (1) and is made by screw both be fixedly connected with, the bottom land of recessed groove (101) and main arm bearing (7) and all offer through hole from the correspondence position of arm bearing (8), cover plate (10) in the width direction and the space be between the part of recessed groove (101) both sides and substrate (1) forms guide-track groove (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520745870.1U CN204968655U (en) | 2015-09-24 | 2015-09-24 | Active chain repairment saw bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520745870.1U CN204968655U (en) | 2015-09-24 | 2015-09-24 | Active chain repairment saw bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204968655U true CN204968655U (en) | 2016-01-20 |
Family
ID=55103100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520745870.1U Expired - Fee Related CN204968655U (en) | 2015-09-24 | 2015-09-24 | Active chain repairment saw bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204968655U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109105029A (en) * | 2018-07-27 | 2019-01-01 | 芜湖玖荣生物科技有限公司 | A kind of flowers pruning tool |
-
2015
- 2015-09-24 CN CN201520745870.1U patent/CN204968655U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109105029A (en) * | 2018-07-27 | 2019-01-01 | 芜湖玖荣生物科技有限公司 | A kind of flowers pruning tool |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 |