CN205232888U - Novel mechanical type pruner - Google Patents
Novel mechanical type pruner Download PDFInfo
- Publication number
- CN205232888U CN205232888U CN201520410312.XU CN201520410312U CN205232888U CN 205232888 U CN205232888 U CN 205232888U CN 201520410312 U CN201520410312 U CN 201520410312U CN 205232888 U CN205232888 U CN 205232888U
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- handle
- blade
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- connecting rod
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Abstract
The utility model discloses a novel mechanical type pruner, including first blade, with first handle that first blade linked firmly, with first handle articulated second handle, with second handle upper end articulated second blade and connecting rod, connecting rod one end with first handle is articulated, the other end with the 2nd blade is articulated, first handle, second handle, second blade and connecting rod pass through the four -bar linkage that the pin joint constitutes parallelogram. The utility model discloses a four -bar linkage changes the power that passes route for the branch can easily be cut with to cut the branch diameter irrelevant to the shearing force, and is more laborsaving, and simultaneously, the utility model discloses requirements for quality is relatively low to the blade, and easy the change, and use and maintenance cost are lower.
Description
Technical field
The utility model relates to agricultural tools field, particularly a kind of mechanical pruner.
Background technology
Rationally grow in order to coordinate flowers and trees each several part, remain tree-like, Accelerate bloom result, prevention and elimination of disease and pests ensures otch simultaneouslyNeatly be not easy to damage flowers and trees, often use shrub and hedge trimmer to prune flowers and trees.
At present shrub and hedge trimmer mainly contain two kinds of mechanical type and electrodynamic types, but it is textural basic identical, mainly by shear sheet, little cuttingBlade, cut axle bolt, cut handle composition. Its principle is to utilize lever principle, in brief, cuts axle bolt and forms to name a person for a particular job and cut on handleForce transmission is to the shearing force that is formed with multiple on shear blade and amplifies, and its major defect is when wait shearing branch when thick, transmissionThe multiplication factor of shearing force diminishes, and is unfavorable for cutting off branch; Based on shortcoming above, shrub and hedge trimmer blade quality requirement is very high at present,Cause expensive. And electrodynamic type shrub and hedge trimmer use cost and maintenance cost are high.
Utility model content
The utility model is intended at least solve one of problems of the prior art.
The technical problems to be solved in the utility model is to solve the problem of more laborsaving pruning flowers and trees, thereby a kind of machinery is providedFormula pruner.
For solving the problems of the technologies described above, the utility model provides following technical scheme: it comprise the first blade, with described the first cutterFirst handle that sheet is connected, with the hinged second handle of described first handle, second blade hinged with described second handle upper endAnd connecting rod; Described connecting rod one end and described first handle are hinged, and the other end and described the second blade are hinged, described first handle,Second handle, the second blade and connecting rod consist of the quadric chain of parallelogram pin joint.
Further, described the first blade and first handle can be Construction integrations.
Further, described the first blade can be without blade.
Further, it also comprises spring, and described spring one end is connected on described first handle, and the other end is connected to describedOn two handles.
The beneficial effects of the utility model are to provide a kind of mechanical pruner, and the utility model passes through quadric chainChange Path of Force Transfer, make shearing force and poll diameter irrelevant, can easily cut off branch, more laborsaving; Meanwhile, this practicalityNovel blade quality requirement is relatively low, and easily changes, and use and maintenance cost is lower.
Brief description of the drawings
Figure 1 shows that the structural representation of a kind of mechanical pruner of the utility model embodiment;
Figure 2 shows that the Overall Analysis figure of the utility model embodiment;
Figure 3 shows that the force analysis figure of the second blade in Fig. 2;
Figure 4 shows that the force analysis figure of second handle in Fig. 2.
Detailed description of the invention
Below describe the utility model in detail in connection with specific embodiment. It should be noted in the discussion above that the technology of describing in following embodimentThe combination of feature or technical characterictic should not be considered to isolate, thereby they can be combined the better technology that reaches mutuallyEffect.
Embodiment
Introduce in detail the technical scheme of the present embodiment below in conjunction with Fig. 1 to Fig. 4:
The present embodiment provides a kind of mechanical pruner, as shown in Figure 1, comprise the first blade 1, with described the first blade 1The first handle 4 of Construction integration, the second handle 5 being connected by hinge D with described first handle 4, and described second handle 5Upper end is by hinge the second blade 2 of connecing of B and be the connecting rod 3 of two power bars, and described connecting rod 3 one end lead to described first handle 4Cross hinge C and connect, the other end and described the second blade 2 connect by hinge A, described the second blade 2, second handle 5, first-handHandle 4 and connecting rod 3 consist of the quadric chain of parallelogram hinge A, B, C, D. Described the first blade 1 is without blade,Mainly play and support by the effect of beta pruning 6. Adopt stainless steel to make the first blade 1, the second blade 2, connecting rod 3, firstHandle 4 and second handle 5.
The present embodiment also comprises spring (not shown), and described spring one end is connected on described first handle, and the other end connectsOn described second handle.
In conjunction with Fig. 2 to Fig. 4, the present embodiment is carried out to mechanics principle analysis:
Free position in beta pruning process is thought of as to standing balance problem, the first blade 1, the second blade 2 and connecting rod 3 etc.The relative active force of conducting oneself with dignity (holding power) can be ignored.
(1) suppose active force Fa, be delivered to the directed force F on branch 6b, the shrub and hedge trimmer to a certain state in beta pruning processOverall Analysis as shown in Figure 2.
(2) carry out force analysis using the second blade 2 as research object, as shown in Figure 3:
The second blade 2 is subject to the directed force F to the second blade 2 by beta pruning 6b；
The second blade 2 is subject to the directed force F of connecting rod 3AC；
The directed force F that the second blade 2 is subject to cutting with scissors BB, by three force balance principle, by FBResolve into FBxAnd FBy, by∑Fx=0, obtain FBx＝Fb
(3) carry out force analysis taking second handle 5 as research object, as shown in Figure 4:
Second handle 5 is subject to active force FaEffect;
Second handle 5 be subject to cutting with scissors B directed force F 'BxAnd F 'By, wherein F 'Bx、F′ByRespectively with FBx、FByFor active force is done with anti-Firmly relation, equal and opposite in direction;
Second handle 5 is subject to cutting with scissors D directed force FDxAnd FDy；
By ∑ MD=0, obtain FaL2＝FBxL1, i.e. FaL2＝FbL1Or
Therefore, power and branch thickness that the present embodiment active force in the process of pollard is delivered on branch have nothing to do, and can notBecause branch slightly causes the situation that force amplifying function reduces to occur; Meanwhile, the second blade 2 motions are parallel, can not make treeBranch produces the power of outside slippage, and therefore, the first blade 1 does not need to be designed to camber line as traditional shrub and hedge trimmer, manufactures simpler.Other the second blade 2, owing to being connected with handle by hinge, is convenient to change.
The utility model provides a kind of mechanical pruner, and the utility model changes Path of Force Transfer by quadric chain,Make shearing force and poll diameter irrelevant, can easily cut off branch, more laborsaving; Meanwhile, the utility model blade qualityRequire relatively low, and easily change, use and maintenance cost is lower.
In description of the present utility model, term " is connected ", " hinged " and " connection " etc. all should be interpreted broadly, for example," connection " can be to be fixedly connected with, and can be also to removably connect, or connects integratedly; Can be direct connection, also canIndirectly to connect by intermediary. For the ordinary skill in the art, can understand as the case may be above-mentioned artThe concrete meaning of language in the utility model.
Although herein provided embodiment more of the present utility model, it will be understood by those of skill in the art that notDepart from the situation of the utility model spirit, can change embodiment herein. Above-described embodiment is exemplary,Restriction that should be using embodiment herein as the utility model interest field.
Claims (4)
1. a mechanical pruner, is characterized in that, comprise the first blade, with described the first blade be connected first-handHandle, with the hinged second handle of described first handle, second blade and the connecting rod hinged with described second handle upper end; DescribedConnecting rod one end and described first handle are hinged, and the other end and described the second blade are hinged, described first handle, second handle,Two blades and connecting rod are by the quadric chain of hinged formation parallelogram.
2. mechanical pruner according to claim 1, is characterized in that, described the first blade and first handle areConstruction integration.
3. mechanical pruner according to claim 2, is characterized in that, described the first blade is without blade.
4. mechanical pruner according to claim 3, is characterized in that, also comprises spring, described spring one endBe connected on described first handle, the other end is connected on described second handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520410312.XU CN205232888U (en) | 2015-06-15 | 2015-06-15 | Novel mechanical type pruner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520410312.XU CN205232888U (en) | 2015-06-15 | 2015-06-15 | Novel mechanical type pruner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205232888U true CN205232888U (en) | 2016-05-18 |
Family
ID=55931987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520410312.XU Expired - Fee Related CN205232888U (en) | 2015-06-15 | 2015-06-15 | Novel mechanical type pruner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205232888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104920085A (en) * | 2015-06-15 | 2015-09-23 | 厦门理工学院 | Novel mechanical pruning machine |
-
2015
- 2015-06-15 CN CN201520410312.XU patent/CN205232888U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104920085A (en) * | 2015-06-15 | 2015-09-23 | 厦门理工学院 | Novel mechanical pruning machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160518 Termination date: 20160615 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |