CN203851523U - Cam type pruning shear - Google Patents
Cam type pruning shear Download PDFInfo
- Publication number
- CN203851523U CN203851523U CN201420251962.XU CN201420251962U CN203851523U CN 203851523 U CN203851523 U CN 203851523U CN 201420251962 U CN201420251962 U CN 201420251962U CN 203851523 U CN203851523 U CN 203851523U
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- CN
- China
- Prior art keywords
- cam
- fixed
- crescent
- armed
- blade
- 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
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Abstract
The utility model relates to shears for forests, in particular to a cam type pruning shear. The cam type pruning shear comprises a crescent shear body. The tail of one blade of the crescent shear body is fixed at one end of a support cross arm, the other end of the support cross arm is fixed at the top of a support long arm, and an included angle is formed between the support cross arm and the support long arm. A cam type pulling mechanism is disposed on the support long arm and comprises a bearing fixed on the support long arm and a rotary shaft penetrating the bearing. A cam is fixed at one end of the rotary shaft. One tip of a pull rope is fixed on the cam. The cam integrally rotates along with the rotary shaft under external force. The other tip of the pull rope bypasses a reversing pulley fixed on the support cross arm and is then fixed at the tail of the other blade of the crescent shear body. The pull rope pulls the blades to allow the edges of the crescent shear body to close under external force. By the structure, the cam type pruning shear has the advantages that labor intensity is lowered and safety is increased.
Description
Technical field
The utility model relates to forest scissors, especially a kind of cam-type sanction secateurs that can reduce labour intensity and improve safety.
Background technology
The commodity trees [referring generally to fruit-bearing forest] of prior art all need unnecessary branch to prune away in process of growth, to ensure that commodity trees regulate the reasonable distribution of nutriment, suppress excessive growth, promote flower bud differentiation, reach treelet early flowering result, can extend again full-bloom stage, the full bearing period, also can make veteran rejuvenation.The winter pruning method of commodity trees is mainly divided into three kinds, may be summarized to be and cuts, dredges, removes tiller, the i.e. usually said sanction branch of people.
The sanction branch instrument of prior art generally comprises cuts out secateurs and cutting saw, and the sanction secateurs of prior art generally adopts crescent-moon scissors, and when use, workman in the face of commodity trees lower position carries out directly cutting out branch with standing in; Commodity trees higher position workman adopts aid [this aid is generally stool or stair] or the upper commodity trees of climbing to cut out branch to it, workman ceaselessly moves commodity trees in aid or climbing at a sanction branch process need, cause labour intensity large, the center of gravity of workman on aid or commodity trees is difficult to grasp, be easy to throw from aid or commodity trees, danger coefficient is high.
In sum, the crescent-moon scissors of prior art causes that workman's labour intensity is large and safety coefficient is low.
Summary of the invention
The purpose of this utility model is to provide a kind of cam-type sanction secateurs that can reduce labour intensity and improve safety.
For achieving the above object and adopt technical scheme be such, be that a kind of cam-type is cut out secateurs, comprise crescent-moon scissors, this crescent-moon scissors is made up of two blades, bolt and back-moving springs, described bolt is fixed as one these two blades at the middle part of two blades, and the two ends of back-moving spring are separately fixed at the rear portion of two blades; It is characterized in that:
The afterbody of a blade of described crescent-moon scissors is fixed on one end of supporting transverse arm, and the other end of this support transverse arm is fixed on and supports long-armed top, between support transverse arm and support are long-armed, is formed with an angle;
On described support is long-armed, be provided with cam-type pulling mechanism, this cam-type pulling mechanism is near supporting long-armed bottom, described cam-type pulling mechanism comprises again and is fixed on the bearing supporting on long-armed, through the rotating shaft of bearing, one end of this rotating shaft is fixed with cam, a termination of stay cord is fixed on cam, and this cam is under external force with rotating shaft unitary rotation; Another termination of described stay cord is walked around and is fixed on the afterbody that is fixed on another piece blade of crescent-moon scissors after the angle pulley supporting on transverse arm, and stay cord pulls this blade to make the blade part interlock of crescent-moon scissors under external force; On described cam, be fixed with handle;
When use, workman holds handle rotating cam, and cam pulls stay cord to realize the blade part interlock beta pruning of crescent-moon scissors, and when workman decontrols after handle, back-moving spring resets the blade of crescent-moon scissors, and the blade of reset pulls stay cord band moving cam to reset.
The utility model is due to said structure, and its advantage is: workman stands in ground can carry out beta pruning to the commodity trees of higher position, has improved safety when reducing labour intensity.
Brief description of the drawings
The non-limiting embodiment that the utility model can provide by accompanying drawing further illustrates.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model cam-type pulling mechanism;
Fig. 3 is the structural representation of the utility model angle pulley;
Fig. 4 is the structural representation of the directed pulley of the utility model;
In figure: 1, crescent-moon scissors; 2, blade; 3, bolt; 4, back-moving spring; 5, support transverse arm; 6, support long-armed; 7, bearing; 8, rotating shaft; 9, cam; 10, stay cord; 11, angle pulley; 12, handle; 13, directed pulley; 14, hold wire casing I; 15, hold wire casing II; 16, supporting seat; 17, connecting bolt; 18, bearing block.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Referring to accompanying drawing 1,2,3 and 4, cam-type in figure is cut out secateurs, comprise crescent-moon scissors 1, this crescent-moon scissors 1 is made up of two blades 2, bolt 3 and back-moving spring 4, described bolt 3 is fixed as one these two blades 2 at the middle part of two blades 2, and the two ends of back-moving spring 4 are separately fixed at the rear portion of two blades 2; It is characterized in that:
The afterbody of a blade 2 of described crescent-moon scissors 1 is fixed on one end of supporting transverse arm 5, and the other end of this support transverse arm 5 is fixed on the top of supporting long-armed 6, between supporting transverse arm 5 and supporting long-armed 6, is formed with an angle;
In described support long-armed 6, be provided with cam-type pulling mechanism, this cam-type pulling mechanism is near the bottom of supporting long-armed 6, described cam-type pulling mechanism comprises again the bearing 7 being fixed in support long-armed 6, through the rotating shaft 8 of bearing 7, one end of this rotating shaft 8 is fixed with cam 9, a termination of stay cord 10 is fixed on cam 9, and this cam 9 is under external force with rotating shaft 8 unitary rotation; Another termination of described stay cord 10 is walked around and is fixed on the afterbody that is fixed on another piece blade 2 of crescent-moon scissors 1 after the angle pulley 11 supporting on transverse arm 5, and stay cord 10 pulls this blade 2 to make the blade part interlock of crescent-moon scissors 1 under external force; On described cam 9, be fixed with handle 12;
When use, workman holds handle 12 rotating cams 9, and cam 9 pulls stay cord 10 to realize the blade part interlock beta pruning of crescent-moon scissors 1, when workman decontrols after handle 12, back-moving spring 4 resets the blade 2 of crescent-moon scissors 1, and the blade 2 of reset pulls stay cord 10 to be with moving cam 9 to reset.
For ease of the directed transmission of stay cord 12, in above-described embodiment, preferably: be fixed with directed pulley 13 in the support long-armed 6 between described angle pulley 11 and cam 9; Another termination of stay cord 10 is walked around the afterbody that is fixed on another piece blade 2 of crescent-moon scissors 1 after directed pulley 13 and angle pulley 11 successively.
For ease of the directed transmission of stay cord 12, in above-described embodiment, preferably: there is the wire casing of appearance I 14 on the outer of described angle pulley 11.On the outer of described directed pulley 13, there is the wire casing of appearance II 15.
For effectively ensureing and regulate the pulling force of stay cord 10, in above-described embodiment, preferably: be fixed with connecting bolt 17 on described cam 9, stay cord 10 is fixed on connecting bolt 17.When stay cord 10 occurs after metal fatigue, unclamp the nut of connecting bolt 17, stay cord 10 post-tensionings are fastenedly connected again to the nut of bolt 17, realize the pulling force of stay cord 10 is regulated, to ensure to cut out the shearing force of secateurs.
Use abdominal support total for ease of workman, be convenient to beta pruning, in above-described embodiment, preferably: long-armed 6 terminations, bottom of described support are fixed with supporting seat 16.
For ease of observing branch situation, in above-described embodiment, preferably: forming angle between described support transverse arm 5 and support long-armed 6 is obtuse angle.
For ease of the stability of assembling and total, in above-described embodiment, preferably: described bearing 7 is arranged in bearing block 18, this bearing block 18 is fixed on and supports on long-armed 6.
Execute in example above-mentioned, angle pulley 11 is identical with directed pulley 13 structures, is all fixed on and is supported transverse arm 5 or support on long-armed 6 by bearing pin.The best stay cord 10 using of said structure is steel wire ropes.
Obviously, above-mentioned all embodiment are a part of embodiment of the present utility model, instead of whole embodiment.Based on embodiment described in the utility model, those skilled in the art are not making all other embodiment that obtain under creative work prerequisite, all belong to the category of the utility model protection.
In sum, due to said structure, reduced labour intensity and improved safety.
Claims (8)
1. a cam-type is cut out secateurs, comprise crescent-moon scissors (1), this crescent-moon scissors (1) is made up of two blades (2), bolt (3) and back-moving spring (4), described bolt (3) is fixed as one these two blades (2) at the middle part of two blades (2), and the two ends of back-moving spring (4) are separately fixed at the rear portion of two blades (2); It is characterized in that:
The afterbody of a blade (2) of described crescent-moon scissors (1) is fixed on one end of supporting transverse arm (5), and the other end of this support transverse arm (5) is fixed on the top of supporting long-armed (6), supports transverse arm (5) and support between long-armed (6) to be formed with an angle;
Described support is provided with cam-type pulling mechanism on long-armed (6), this cam-type pulling mechanism is near the bottom of supporting long-armed (6), described cam-type pulling mechanism comprises again the bearing (7) being fixed in support long-armed (6), through the rotating shaft (8) of bearing (7), one end of this rotating shaft (8) is fixed with cam (9), it is upper that a termination of stay cord (10) is fixed on cam (9), and this cam (9) is under external force with rotating shaft (8) unitary rotation; Another termination of described stay cord (10) is walked around and is fixed on the afterbody that is fixed on another piece blade (2) of crescent-moon scissors (1) after the angle pulley (11) supporting on transverse arm (5), and stay cord (10) pulls this blade (2) to make the blade part interlock of crescent-moon scissors (1) under external force; On described cam (9), be fixed with handle (12);
When use, workman holds handle (12) rotating cam (9), cam (9) pulls stay cord (10) to realize the blade part interlock beta pruning of crescent-moon scissors (1), when workman decontrols after handle (12), back-moving spring (4) resets the blade (2) of crescent-moon scissors (1), and the blade (2) of reset pulls stay cord (10) band moving cam (9) to reset.
2. cam-type according to claim 1 is cut out secateurs, it is characterized in that: in the support long-armed (6) between described angle pulley (11) and cam (9), be fixed with directed pulley (13); Another termination of stay cord (10) is walked around the afterbody that is fixed on another piece blade (2) of crescent-moon scissors (1) after directed pulley (13) and angle pulley (11) successively.
3. cam-type according to claim 1 and 2 is cut out secateurs, it is characterized in that: on the outer of described angle pulley (11), have the wire casing I of appearance (14).
4. cam-type according to claim 2 is cut out secateurs, it is characterized in that: on the outer of described directed pulley (13), have the wire casing II of appearance (15).
5. cam-type according to claim 1 and 2 is cut out secateurs, it is characterized in that: termination, described support long-armed (6) bottom is fixed with supporting seat (16).
6. cam-type according to claim 1 and 2 is cut out secateurs, it is characterized in that: on described cam (9), be fixed with connecting bolt (17), stay cord (10) is fixed on connecting bolt (17).
7. cam-type according to claim 1 is cut out secateurs, it is characterized in that: between described support transverse arm (5) and support long-armed (6), forming angle is obtuse angle.
8. cam-type according to claim 1 is cut out secateurs, it is characterized in that: described bearing (7) is arranged in bearing block (18), and this bearing block (18) is fixed on and supports on long-armed (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420251962.XU CN203851523U (en) | 2014-05-16 | 2014-05-16 | Cam type pruning shear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420251962.XU CN203851523U (en) | 2014-05-16 | 2014-05-16 | Cam type pruning shear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203851523U true CN203851523U (en) | 2014-10-01 |
Family
ID=51601411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420251962.XU Expired - Fee Related CN203851523U (en) | 2014-05-16 | 2014-05-16 | Cam type pruning shear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203851523U (en) |
-
2014
- 2014-05-16 CN CN201420251962.XU patent/CN203851523U/en not_active Expired - Fee Related
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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: 20141001 Termination date: 20150516 |
|
| EXPY | Termination of patent right or utility model |