CN102960116A - Mowing blade and mower nose provided with mowing blade - Google Patents
Mowing blade and mower nose provided with mowing blade Download PDFInfo
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- CN102960116A CN102960116A CN2012105491570A CN201210549157A CN102960116A CN 102960116 A CN102960116 A CN 102960116A CN 2012105491570 A CN2012105491570 A CN 2012105491570A CN 201210549157 A CN201210549157 A CN 201210549157A CN 102960116 A CN102960116 A CN 102960116A
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- blade
- assistant
- mowing blade
- grass
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Abstract
A mowing blade comprises a middle mounting part and extension parts extending to the two ends from the mounting part, wherein a cutting edge part is arranged on one side of each end extension part, and the other side of the extension part is bent and extends toward the rear upper part to form a fin part for producing exhaust air current; and each fin part comprises three wings arranged at an interval at least, the wings are formed by gradually rising and bending outward along the long direction of the blade, sharp teeth are arranged on the outer edges of the wings, the wings and the cutting edge part are arranged on the same sides of the extension parts, and gaps allowing air current to pass are arranged between adjacent wings. The invention also discloses a mower nose. The wings not only can be used for producing the air current, but also can be used for the secondary cutting of grass mowed by the cutting edge part, so that the cutting effect is improved. The gaps between the wings can also be used for holding grass stems, roots and leaves besides allowing the air current to pass, so that the grass stems, roots and leaves can be discharged in order.
Description
Technical field
The present invention relates to a kind of blade, this blade application is on mower.The invention still further relates to a kind of application has the mower head of this blade.
Background technology
At present in garden management, pruning to garden lawn has two kinds of forms: a kind of is shuttle low mower, adopts just as hair-clippers scissors reciprocating cutting tool, cuts grass, this method is easy, but be not easy to remove the blade of grass of cutting off, this shuttle low mower is suitable for cutting and cuts conifer short grass level ground, cut to cut and do not need to tidy up blade of grass, blade of grass is scattered on the lawn, lands voluntarily, thereby naturally withers away.Another kind is rotary mower, adopt the hay knife of high-speed rotation, this class mower not only can be cut and cut the conifer grass, also can cut pitch cutting leaf class grass, can also cut and cut undershrub class weeds, the Seeding location of this class mower often is made into the comparatively operation protective cover of sealing of periphery, certain direction of operation protective cover is formed with opening, so that cut the blade of grass that cuts off under the centrifugal action of High Rotation Speed blade, opening direction threw away blade of grass in the past, so that blade of grass in order discharging in the mowing approach.If the direction at opening arranges the careless device of receipts, so just can carry out neatly cutting operation.
Rotary mower discloses much in the prior art, is the Chinese invention patent " power-operated mower " (Granted publication number for CN1240265C) of ZL02122863.9 such as the patent No.; Can also application reference number be open " a kind of mower " (application publication number is CN102487656A) of Chinese invention patent application of 201110427371.4 etc.
The blade basic structure that this class rotary mower is applied to is as follows: the installation portion in the middle of comprising and the elongated portion of being extended to two ends by installation portion, one side of elongated portion has blade, opposite side extends to form fin to the back upper place bending, and fin can produce the air-flow of the grass bits discharge that will cut during rotation.Being the Chinese invention patent blade of mower " be used for " (Granted publication number be CN1240265C) of ZL02118029.6 such as the patent No., can also application reference number be that 02141630.3 application for a patent for invention discloses " rotary mower blade " (publication number is CN1406461A); Application number is open " blade of rotary mower " (publication number is CN101438653A) of Chinese invention patent application of 200710093012.3.
The blade of above-mentioned existing rotary mower owing to limit on the structure, often only can use leaflet class meadow, is not very good to undershrub class weeds meadow mowing effect is arranged, and is difficult to simultaneously have well in order discharging blade of grass, and it is not good enough to cause receiving careless effect.
Summary of the invention
Technical problem to be solved by this invention is that a kind of mowing blade that can be applicable to simultaneously leaflet grass class and undershrub class weeds is provided for the above-mentioned state of the art.
Another technical problem to be solved by this invention is that a kind of mower head that can be applicable to simultaneously leaflet grass class and undershrub class weeds is provided for the above-mentioned state of the art.
Another technical problem to be solved by this invention is to provide a kind of blade of grass of cutting off can give off in an orderly manner the mower head of protective cover for the above-mentioned state of the art.
Thereby another technical problem to be solved by this invention is to provide a kind of blade of grass of cutting off to be difficult for being thrown to the protective cover inwall for the above-mentioned state of the art to make the little mower head of noise.
The present invention solves the problems of the technologies described above the technical scheme that adopts: a kind of mowing blade, installation portion in the middle of comprising and the elongated portion of being extended to two ends by installation portion, one side of every end elongated portion has blade part, opposite side extends to form to be useful on to the back upper place bending and produces the tab portion of discharging air-flow, it is characterized in that described tab portion comprises three spaced apart assistants at least, this assistant along the length direction of blade outwards gradually the lifting bending form, the outer rim of aforementioned assistant has pointed tooth, and, aforementioned assistant and blade part are positioned at the ipsilateral of elongated portion, and have the gap that air feed stream passes through between the adjacent assistant.
The area of the middle assistant of described tab portion is greater than the area of both sides assistant.This arrangement of assistant is beneficial to the minimizing air drag, reduces noise.
Gap between the described adjacent assistant is bar shaped, and the inner in this gap is an indent smooth surface.Guarantee air-flow by in can keep the grass blade branches and leaves that cut off here, be the follow-up in an orderly manner discharging work of getting ready.
As the best, the length direction in the gap between the described adjacent assistant and the length direction of blade are 45° angle, accordingly, described assistant and blade lengths direction be 45 ° of angles of shear and upwards bending form.Cutting blade when rotation, 18 ° the angle, tooth footpath of radially having an appointment of the tip of assistant and hay knife, the part centrifugal force of generation in the time of can overcoming rotation guarantees that further grass blade root leaf stays the vicinity, gap and be difficult for throwing away.
As the best, a side and the plane, elongated portion place of the inner end of assistant are 125 ° of angles in the middle of being positioned in the described tab portion, and a side of outer end and plane, elongated portion place are 150 ° of angles.The assistant of lifting design can be held grass blade root leaf and rotates together gradually from inside to outside.
A kind of application has the mower head of mowing blade, comprise power switching device, mowing blade and protective cover, aforesaid power switching device is located on the protective cover and is had output shaft and power intake, aforesaid mowing blade is located on the output shaft and is positioned at protective cover and can rotates with output shaft, and the perisporium of aforementioned protective cover offers a floss hole of discharging for the grass bits.
During cutting operation, the blade part of mowing blade cuts off grass first, the grass blade branches and leaves that cut off in the rotary course simultaneously can be driven together rotation by the assistant of mowing blade perk, drive together in the rotary course, the grass blade branches and leaves can be beaten very brokenly by assistant, grass blade branches and leaves after smashing are not easy to get rid of to the protective cover inwall because the effect of centrifugal force can be retained near the root of assistant gap; In the time of near mowing blade rotates to the protective cover floss hole, mowing blade edge air pressure is step-down quickly, produces negative pressure, and the air of assistant trailing edge flows to rapidly floss hole by the gap, drives near the grass blade branches and leaves of root that are retained in the gap and discharges rapidly.
Compared with prior art, the invention has the advantages that: a plurality of assistants can also carry out secondary cut to the grass that blade part cuts off except producing air-flow, improve its cutting effect, and are particularly evident to undershrub class weeds mowing effect; Gap between the assistant except air feed stream by can also be used for keeping somewhere grass blade root leaf, be beneficial in an orderly manner discharge; Can hold part grass blade root leaf during simultaneously assistant rotation, reduce its with the protective cover inwall contact the reduction noise.
Description of drawings
Fig. 1 is the example structure schematic diagram.
Fig. 2 is the upward view of Fig. 1.
Fig. 3 is the enlarged drawing of mowing blade among Fig. 2.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is the right view of Fig. 3.
Fig. 6 is A-A direction cutaway view among Fig. 4.
Fig. 7 is B-B direction cutaway view among Fig. 4.
Embodiment
Embodiment is described in further detail the present invention below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, mower head in the present embodiment comprises power switching device 2, mowing blade 1 and protective cover 3, power switching device 2 is located on the protective cover 3 and is had output shaft and power intake, and power intake can be connected with the power source of drive device.Mowing blade 1 is located on the output shaft and is positioned at protective cover 3 and can rotates with output shaft, and the perisporium of protective cover 3 offers a floss hole 31 of discharging for the grass bits.Wherein F1 is mower head direction of advance, and F2 is that blade of grass is discharged direction, and F3 is the mowing blade direction of rotation.
Such as Fig. 3 ~ shown in Figure 7, installation portion 12 in the middle of mowing blade 1 comprises and the elongated portion 14 of being extended to two ends by installation portion 12, one side of every end elongated portion 14 has blade part 13, opposite side extends to form to be useful on to the back upper place bending and produces the tab portion of discharging air-flow, and blade part 13 cutting angles are 30 °.Tab portion comprises five spaced apart assistants 11, this assistant 11 along the length direction of blade outwards gradually the lifting bending form, the outer rim of assistant 11 has pointed tooth, and, assistant 11 is positioned at the ipsilateral of elongated portion with blade part 13, and has the gap 15 that air feed stream passes through between the adjacent assistant 11.
Middle three assistants 11 are same design, and its area is greater than the area of both sides assistant 11.Gap 15 between the adjacent assistant 11 is bar shaped, and the inner in this gap 15 is an indent smooth surface.
The length direction in the gap between the adjacent assistant 11 and the length direction of blade are 45° angle, accordingly, assistant 11 be 45 ° of angles of shear with the blade lengths direction and upwards bending form.A side and the plane, elongated portion place of the inner end of assistant 11 are 125 ° of angles in the middle of being positioned in the tab portion, and a side of outer end and plane, elongated portion place are 150 ° of angles.
During work, by power switching device 2, the mower head is converted to Vertical Dynamic output with horizontal power output, thereby drives mowing blade 1 ground proximity High Rotation Speed, and middle the mower head is carried out cutting operation by the meadow of locating advancing.During cutting operation, the blade part 13 of mowing blade 1 cuts off ground grass first, and the grass blade branches and leaves that will cut simultaneously can be driven together rotation by the assistant 11 of perk, drive together in the rotary course, the grass blade branches and leaves can by 11 dozens on the assistant of perk very broken.Meanwhile, when mowing blade 1 one sidespins forward the floss hole 31 that closes on protective cover 3 to, the air-flow that is driven to rotate then leads to floss hole 31 and releases, held the grass blade branches and leaves that rotate and beaten very brokenly together by assistant 11, be subjected on the one hand the High Rotation Speed centrifugal action, the air-flow that is released again on the one hand drives, and together discharges by floss hole 31 with air-flow.If bundle has the recovery pocket at floss hole 31 places, the blade of grass that cuts off so just can be concentrated and be regained.Even without reclaiming pocket, the grass blade branches and leaves also can more neatly be emitted on the side of work path so, can sweep easily.
The assistant 11 of mowing blade 1 is cut out the angle in facing up bending of cutting edge 13 with 45 °, can make each assistant 11 form a high outside and low outside dentation.After mowing blade 1 is installed assembling, this high outside and low outside assistant 11 is-18 ° of angles of radially having an appointment with hay knife 1, angle, a tooth footpath like this, just the grass blade branches and leaves of meeting can be smashed, can make again the grass blade branches and leaves that driven by assistant 11 overcome a part of centrifugal force, when mowing blade 1 during in protective cover 3 interior rotation, be not easy to get rid of to protective cover 3 inwalls, and be retained near the root of assistant 11 gaps.This gap is the circulation that is conducive to air-flow, in the time of near mowing blade 1 rotates to protective cover 3 blade of grass exhaust outlets 31, cutter edge air pressure is step-down quickly, the air of assistant 11 trailing edges flows to rapidly floss hole 31 by the gap, also drives to be retained near the grass blade branches and leaves discharge floss hole 31 in gap.
Claims (6)
1. mowing blade, installation portion in the middle of comprising and the elongated portion of being extended to two ends by installation portion, one side of every end elongated portion has blade part, opposite side extends to form to be useful on to the back upper place bending and produces the tab portion of discharging air-flow, it is characterized in that described tab portion comprises three spaced apart assistants at least, this assistant along the length direction of blade outwards gradually the lifting bending form, the outer rim of aforementioned assistant has pointed tooth, and, aforementioned assistant and blade part are positioned at the ipsilateral of elongated portion, and have the gap that air feed stream passes through between the adjacent assistant.
2. mowing blade according to claim 1 is characterized in that the area of middle assistant of described tab portion is greater than the area of both sides assistant.
3. mowing blade according to claim 1 and 2 is characterized in that the gap between the described adjacent assistant is bar shaped, and the inner in this gap is an indent smooth surface.
4. mowing blade according to claim 3 is characterized in that the length direction in the gap between the described adjacent assistant and the length direction of blade are 45° angle, accordingly, described assistant and blade lengths direction be 45 ° of angles of shear and upwards bending form.
5. mowing blade according to claim 4, a side and the plane, elongated portion place of the inner end of assistant are 125 ° of angles in the middle of it is characterized in that being positioned in the described tab portion, and a side of outer end and plane, elongated portion place are 150 ° of angles.
6. application mower head of any one mowing blade in the requirement 1 ~ 5 of having the right, comprise power switching device, mowing blade and protective cover, aforesaid power switching device is located on the protective cover and is had output shaft and power intake, aforesaid mowing blade is located on the output shaft and is positioned at protective cover and can rotates with output shaft, and the perisporium of aforementioned protective cover offers a floss hole of discharging for the grass bits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210549157.0A CN102960116B (en) | 2012-12-17 | 2012-12-17 | Mowing blade and mower nose provided with mowing blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210549157.0A CN102960116B (en) | 2012-12-17 | 2012-12-17 | Mowing blade and mower nose provided with mowing blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102960116A true CN102960116A (en) | 2013-03-13 |
| CN102960116B CN102960116B (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210549157.0A Expired - Fee Related CN102960116B (en) | 2012-12-17 | 2012-12-17 | Mowing blade and mower nose provided with mowing blade |
Country Status (1)
| Country | Link |
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| CN (1) | CN102960116B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103535153A (en) * | 2013-10-31 | 2014-01-29 | 苏州安必瑟斯机电技术有限公司 | Cutting blade |
| CN109874498A (en) * | 2019-04-03 | 2019-06-14 | 宫电高周波设备（上海）有限公司 | Air blower for cutting machine |
| CN112273045A (en) * | 2020-10-28 | 2021-01-29 | 双峰县一加农机制造有限公司 | Hand-held tea picking equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1742539A (en) * | 2004-09-02 | 2006-03-08 | 本田技研工业株式会社 | Lawn mower |
| CN201483552U (en) * | 2009-08-04 | 2010-05-26 | 赵延辉 | Blade installation structure of garden machine |
| CN101911884A (en) * | 2010-07-15 | 2010-12-15 | 宁波大叶园林设备有限公司 | Multi-tooth hey knife for lawn mower |
| CN203015460U (en) * | 2012-12-17 | 2013-06-26 | 宁波协力机电制造有限公司 | Mowing blade and field mower head utilizing same |
-
2012
- 2012-12-17 CN CN201210549157.0A patent/CN102960116B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1742539A (en) * | 2004-09-02 | 2006-03-08 | 本田技研工业株式会社 | Lawn mower |
| CN201483552U (en) * | 2009-08-04 | 2010-05-26 | 赵延辉 | Blade installation structure of garden machine |
| CN101911884A (en) * | 2010-07-15 | 2010-12-15 | 宁波大叶园林设备有限公司 | Multi-tooth hey knife for lawn mower |
| CN203015460U (en) * | 2012-12-17 | 2013-06-26 | 宁波协力机电制造有限公司 | Mowing blade and field mower head utilizing same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103535153A (en) * | 2013-10-31 | 2014-01-29 | 苏州安必瑟斯机电技术有限公司 | Cutting blade |
| CN109874498A (en) * | 2019-04-03 | 2019-06-14 | 宫电高周波设备（上海）有限公司 | Air blower for cutting machine |
| CN112273045A (en) * | 2020-10-28 | 2021-01-29 | 双峰县一加农机制造有限公司 | Hand-held tea picking equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102960116B (en) | 2015-06-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180823 Address after: 315103 2 Xin Mei Road, hi tech Zone, Ningbo, Zhejiang Patentee after: Ningbo Xie Ya Agricultural Equipment Manufacturing Co., Ltd. Address before: 315103 No. 2, three East Road, Meishan East, Ningbo national hi tech Zone, Zhejiang Patentee before: Ningbo Xieli Mechanical and Electrical Manufacture Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20181217 |
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| CF01 | Termination of patent right due to non-payment of annual fee |