CN203015460U - Mowing blade and field mower head utilizing same - Google Patents
Mowing blade and field mower head utilizing same Download PDFInfo
- Publication number
- CN203015460U CN203015460U CN 201220699958 CN201220699958U CN203015460U CN 203015460 U CN203015460 U CN 203015460U CN 201220699958 CN201220699958 CN 201220699958 CN 201220699958 U CN201220699958 U CN 201220699958U CN 203015460 U CN203015460 U CN 203015460U
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- blade
- assistant
- mowing blade
- mowing
- grass
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Abstract
A mowing blade comprises a middle installation part and stretching parts which are stretched from the installation part to two ends, one side of the stretching part at each end is provided with a cutting edge part, and the other side of the stretching part at each end is bent and stretched backwards and upwards to form a rib part used for producing discharging air flow. Each rib part at least comprises three wings arranged at intervals, the wings are gradually lifted and bent outwards along the length direction of the blade, the outer edge of each wing is provided with tip teeth, the wings and the cutting edge parts are located on the same side faces of the stretching parts, and a gap for passing of the air flow is formed between each two adjacent wings. The utility model further discloses a field mower head utilizing the mowing blade, a plurality of wings can produce the air flow and can also conduct secondary cutting to grass cutting by the cutting edge parts, and a cutting effect of the field mower head is improved, gaps among the wings can also be used for containing grass blades, roots and leaves except being used for passing of the air flow, and order discharging is benefited.
Description
Technical field
The utility model relates to a kind of blade, and this blade application is on mower.The utility model also relates to the mower head that a kind of application has 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, make and 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, made blade of grass discharging in order 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 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 during rotation, fin can produce the air-flow of the grass bits discharge that will cut.Being the Chinese invention patent blade of mower " be used for " (Granted publication number be CN1240265C) of ZL02118029.6 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 limiting on 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 discharging blade of grass in order, causes receiving careless effect not good enough.
The utility model content
Technical problem to be solved in the utility model 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 in the utility model 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 in the utility model 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 in the utility model 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 utility model 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 has the gap that air feed stream passes through between 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 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 discharging in an orderly manner work of getting ready.
As the best, the length direction in the gap between 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, the angle, tooth footpath of 18 ° 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, in the middle of being positioned in described tab portion, a side and the plane, elongated portion place of the inner end of assistant are 125 ° of angles, 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 protective cover and is had output shaft and power intake, aforesaid mowing blade is located on 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 for the discharge of grass bits.
During cutting operation, the blade part of mowing blade first cuts off grass, the grass blade branches and leaves that cut off in rotary course simultaneously can be driven rotation together by the assistant of mowing blade perk, drive together in rotary course, the grass blade branches and leaves can be beaten very brokenly by assistant, grass blade branches and leaves after smashing can be retained near the root of assistant gap due to the effect of centrifugal force, are not easy to get rid of to the protective cover inwall; 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, and near the grass blade branches and leaves that drive the root that is retained in the gap are discharged rapidly.
Compared with prior art, the utility model has the advantage of: 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 assistant except air feed stream by can also be used for keeping somewhere grass blade root leaf, be beneficial to discharge in an orderly manner; Part grass blade root leaf be can hold during simultaneously assistant rotation, itself and the contacting of protective cover inwall reduced, 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 in 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 in Fig. 4.
Fig. 7 is B-B direction cutaway view in Fig. 4.
Embodiment
Embodiment is described in further detail the utility model 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 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 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 for the discharge of 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.
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 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 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 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.In the middle of being positioned in tab portion, a side and the plane, elongated portion place of the inner end of assistant 11 are 125 ° of angles, 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 first cuts off ground grass, and the grass blade branches and leaves that will cut simultaneously can be driven rotation together by the assistant 11 of perk, drive together in rotary course, the grass blade branches and leaves can by 11 dozens, 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 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 at floss hole 31 places' bundles, the recovery pocket is arranged, 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 a side of work path so, can sweep easily.
The assistant 11 of mowing blade 1 is cut out the angle in cutting edge 13 bending facing up 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, such a tooth footpath, 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,, be not easy to get rid of to protective cover 3 inwalls, and be retained near the root of assistant 11 gaps during in the interior rotation of protective cover 3 when mowing blade 1.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 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 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 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, in the middle of it is characterized in that being positioned in described tab portion, a side and the plane, elongated portion place of the inner end of assistant are 125 ° of angles, 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 requirement 1 ~ 5 of having the right, comprise power switching device, mowing blade and protective cover, aforesaid power switching device is located on protective cover and is had output shaft and power intake, aforesaid mowing blade is located on 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 for the discharge of grass bits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220699958 CN203015460U (en) | 2012-12-17 | 2012-12-17 | Mowing blade and field mower head utilizing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220699958 CN203015460U (en) | 2012-12-17 | 2012-12-17 | Mowing blade and field mower head utilizing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203015460U true CN203015460U (en) | 2013-06-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220699958 Withdrawn - After Issue CN203015460U (en) | 2012-12-17 | 2012-12-17 | Mowing blade and field mower head utilizing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203015460U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102960116A (en) * | 2012-12-17 | 2013-03-13 | 宁波协力机电制造有限公司 | Mowing blade and mower nose provided with mowing blade |
| WO2015184674A1 (en) * | 2014-06-06 | 2015-12-10 | 嘉兴亚特园林机械研究所 | Lawnmower protective device and lawnmower |
| CN108966802A (en) * | 2018-06-25 | 2018-12-11 | 安徽豪鼎金属制品有限公司 | A kind of weeding knife |
| CN109451975A (en) * | 2018-11-23 | 2019-03-12 | 南县伟业机械制造有限公司 | A kind of environment-friendly type sink mower blade |
-
2012
- 2012-12-17 CN CN 201220699958 patent/CN203015460U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102960116A (en) * | 2012-12-17 | 2013-03-13 | 宁波协力机电制造有限公司 | Mowing blade and mower nose provided with mowing blade |
| CN102960116B (en) * | 2012-12-17 | 2015-06-10 | 宁波协力机电制造有限公司 | Mowing blade and mower nose provided with mowing blade |
| WO2015184674A1 (en) * | 2014-06-06 | 2015-12-10 | 嘉兴亚特园林机械研究所 | Lawnmower protective device and lawnmower |
| CN108966802A (en) * | 2018-06-25 | 2018-12-11 | 安徽豪鼎金属制品有限公司 | A kind of weeding knife |
| CN109451975A (en) * | 2018-11-23 | 2019-03-12 | 南县伟业机械制造有限公司 | A kind of environment-friendly type sink mower blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130626 Effective date of abandoning: 20150610 |
|
| RGAV | Abandon patent right to avoid regrant |