CN209201538U - Work head and mowing tool for mowing - Google Patents
Work head and mowing tool for mowing Download PDFInfo
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- CN209201538U CN209201538U CN201821321239.9U CN201821321239U CN209201538U CN 209201538 U CN209201538 U CN 209201538U CN 201821321239 U CN201821321239 U CN 201821321239U CN 209201538 U CN209201538 U CN 209201538U
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Abstract
The utility model discloses a kind of work head for mowing and mowing tool, work head includes: blade assembly, driving mechanism and head capsule, and blade assembly includes the first blade and the second blade；First blade is formed with the first mounting hole；Second blade is formed with the second mounting hole；First blade is forming the first mounting hole around pivot center along the first inner end for radially including close first mounting hole and the first outer end of separate first mounting hole, the first inner end perpendicular to pivot center；Second blade is forming the second mounting hole around pivot center along the second inner end for radially including close second mounting hole and the second outer end of separate second mounting hole, the second inner end perpendicular to pivot center；Wherein, gap, the first outer end and the fitting of the second outer end along the direction for being parallel to pivot center, are being formed between the first inner end and the second inner end.The manufacturing cost of blade assembly in the work head can be lowered.
Description
Technical field
The utility model relates to a kind of garden class tools, and in particular to work head and mowing tool for mowing.
Background technique
Grass trimmer can remove weeds for user as a kind of mowing tool, cut the grass on a lawn.Grass trimmer generally includes: even
Bar and the work head that connecting rod front end is arranged in, work head include: blade assembly, driving mechanism and head capsule.Existing work
The head capsule of head usually requires three or more mold manufactures, and manufacturing cost is higher, and structure is complicated.Wherein, blade assembly includes
First blade and the second blade, be easy in this way so that position that grass cuttings enter between the first blade and the second blade and make
Blade assembly is stuck.
Utility model content
To solve the deficiencies in the prior art, being used for for manufacturing cost can be reduced the purpose of this utility model is to provide a kind of
The work head and mowing tool of mowing.
In order to achieve the above objectives, the utility model adopts the following technical solutions:
A kind of work head for mowing, comprising: blade assembly, including the first blade and the second blade；Driving mechanism is used
It is rotated in the first blade of driving and the second blade by axis of a pivot center；Head capsule accommodates at least partly driving mechanism；First knife
Piece is formed with the first mounting hole for the first blade to be connected to driving mechanism, and pivot center passes through the first mounting hole；Second
Blade is formed with the second mounting hole for the second blade to be connected to driving mechanism, and pivot center passes through the second mounting hole；The
One blade along perpendicular to pivot center radially include close to the first mounting hole the first inner end and far from first installation
First outer end in hole, the first inner end form the first mounting hole around pivot center；Second blade is along perpendicular to rotation axis
Line radially includes the second inner end close to the second mounting hole and the second outer end far from the second mounting hole, the second inner end
Portion forms the second mounting hole around pivot center；Wherein, along the direction that edge is parallel to pivot center, the first inner end and second
Gap, the first outer end and the fitting of the second outer end are formed between inner end；Work head further include: spacer, including at least
Part is arranged between the first inner end and the second inner end so as to form gap between the first inner end and the second inner end
Spacer portion.
Further, the gap between the first blade and the second blade is radially gradually reduced from inside to outside
Further, work head further include: compressing member, including for applying pressure to the first blade so that first blade
First outer end conforms to the compressed part of the second outer end.
Further, under definition is by the direction that head capsule is directed toward the first blade along pivot center direction, along pivot center side
It is upper to the direction for being directed toward head capsule by the first blade；Wherein, the first blade is set to the downside of the second blade.
Further, driving mechanism includes: the first drive shaft, passes through the first mounting hole and the second mounting hole；First driving
Axis and spacer are integrally formed.
Further, under definition is by the direction that head capsule is directed toward the first blade along pivot center direction, along pivot center side
It is upper to the direction for being directed toward head capsule by the first blade；Wherein, the first blade is set to the downside of the second blade；Driving mechanism packet
Include: the second drive shaft passes through the second mounting hole；Second drive shaft and spacer are integrally formed.
A kind of mowing tool, including operating assembly, for for user's operation；Work head, for mowing；Connection component, even
Connect operating assembly and work head；Work head includes: blade assembly, including the first blade and the second blade；Driving mechanism, for driving
Dynamic first blade and the second blade are rotated by axis of a pivot center；Head capsule accommodates at least partly driving mechanism；First blade-shaped
At the first mounting hole having for the first blade to be connected to driving mechanism, pivot center passes through the first mounting hole；Second blade
It is formed with the second mounting hole for the second blade to be connected to driving mechanism, pivot center passes through the second mounting hole；First knife
Piece is along perpendicular to pivot center radially including close to the first inner end of the first mounting hole and far from the first mounting hole
First outer end, the first inner end form the first mounting hole around pivot center；Second blade is along perpendicular to pivot center
It radially include the second inner end close to the second mounting hole and the second outer end far from the second mounting hole, the second inner end encloses
The second mounting hole is formed around pivot center；Wherein, along the direction that edge is parallel to pivot center, the first inner end and the second inner end
Gap, the first outer end and the fitting of the second outer end are formed between portion；Work head further include: spacer, including at least partly
It is arranged between the first inner end and the second inner end so as to form the interval in gap between the first inner end and the second inner end
Portion.
Further, the gap between the first inner end and the second inner end is radially gradually reduced from inside to outside.
Further, work head further include: compressing member, including for applying pressure to the first blade so that first blade
First outer end conforms to the compressed part of the second outer end.
Further, under definition is by the direction that head capsule is directed toward the first blade along pivot center direction, along pivot center side
It is upper to the direction for being directed toward head capsule by the first blade；Wherein, the first blade is set to the downside of the second blade.
The cost for having the beneficial effect that the blade assembly in work head of the utility model can be reduced greatly.
Detailed description of the invention
Fig. 1 is the perspective view of the mowing tool of first embodiment；
Fig. 2 is the plan view of the part-structure in Fig. 1；
Fig. 3 is the cross-sectional view of structure shown in Fig. 2；
Fig. 4 is the perspective view of the work head in Fig. 1；
Fig. 5 is the perspective view of another angle of the work head in Fig. 1；
Fig. 6 is the cross-sectional view of the work head in Fig. 4；
Fig. 7 is perspective view of the work head when upper housing is separated in Fig. 6；
Fig. 8 is the explosive view of the work head in Fig. 6；
Fig. 9 is the plan view of the first blade in Fig. 6；
Figure 10 is the plan view of the second blade in Fig. 6；
Figure 11 is the perspective view of the blade assembly in the mowing tool of second embodiment；
Figure 12 is the explosive view of the blade assembly in Figure 11；
Figure 13 is the plan view of the blade assembly in the mowing tool of 3rd embodiment；
Figure 14 is the explosive view of the blade assembly in Figure 13；
Figure 15 is the plan view of the work head in the mowing tool of fourth embodiment；
Figure 16 is the cross-sectional view of the work head in Figure 15；
Figure 17 is the plan view of blade assembly in Figure 16, the first drive shaft and compressing member；
Figure 18 is the cross-sectional view of structure shown in Figure 17；
Figure 19 is the cross-sectional view of the blade assembly in Figure 16；
Figure 20 is the enlarged drawing of part-structure in Figure 18.
Specific embodiment
Mowing tool 100 shown in FIG. 1 is used to trim weeds, lawn etc. for user, can be particularly used for trimming city
The weeds of the inside and the weeds in roadside, the mowing tool 100 can effectively avoid stone etc. is hard when trimming weeds
Object be thrown to other objects perhaps other people so as to avoiding damaging other articles when mowing or hurting other people.
As shown in Figure 1, mowing tool 100 includes: work head 10 and tool host 20, tool host 20 includes: operational group
Part 21, connection component 22 and aft-end assembly 23.Wherein, work head 10 is for realizing the function of mowing, and operating device is for supplying
User's operation is to control mowing tool 100, and connection component 22 is for connecting work head 10, operating assembly 21 and aft-end assembly 23
It is connected in the entirety that can be moved together.Aft-end assembly 23 may include: back casing 231 and motor 232, and the setting of motor 232 exists
In back casing 231.
As shown in Figure 1 to Figure 3, specifically, connection component 22 includes: the connecting rod extended along the direction first straight line 22a
221, work head 10 and aft-end assembly 23 are separately positioned on the both ends on the length direction of connecting rod 221, and operating assembly 21 is installed extremely
On connecting rod 221 and between work head 10 and aft-end assembly 23.
Work head 10 includes: blade assembly 11, head capsule 12, driving mechanism 13 and shield 14.Wherein, blade assembly 11 wraps
Include can be with first axle 101 axis rotation the first blade 111 and the second blade 112, first axle 101 may also be referred to as being the
Pivot center when one blade 111 and the second blade 112 rotate.Head capsule 12 is used to work head 10 being connected to connecting rod 221, drives
Mechanism 13 is arranged in head capsule 12, and shield 14 is avoided that weeds and other objects get rid of to user.
The technical solution of the utility model for convenience of explanation, referring to Fig. 1, also definition is along 101 direction of first axle by head
Under the direction of the first blade 111 of direction of shell 12 is, the direction of head capsule 12 is directed toward by the first blade 111 along 101 direction of first axle
It is upper.
Specifically, the first blade 111 and the coaxial arrangement of the second blade 112, that is to say the first blade 111 and the second blade
112 be axis rotation with first axle 101.First blade 111 is additionally arranged at the downside of the second blade 112.In the present embodiment,
First blade 111 and the second blade 112 are circular saw blade.Driving mechanism 13 can drive the first blade 111 with first axle 101
Rotated for axis along the first rotation direction, driving mechanism 13 can also drive the second blade 112 with first axle 101 be axis along second turn
Dynamic direction rotation, wherein the first rotation direction and the second rotation direction are opposite.In this way, the first blade 111 and the second blade 112 are same
When be axis with first axle 101 and rotated along opposite direction, to realize the function of shearing, pass through 111 He of the first blade
Second blade 112 to weeds, perhaps shear and enable to weeds or lawn by neat cutting by lawn, and cuts off face
Compare neatly, so that remaining weeds or lawn are integrally relatively more neat and will not be damaged.
As shown in Figures 3 to 8, head capsule 12 includes: upper housing 121 and lower case 122, and upper housing 121 is arranged in lower case
122 upside.In the present embodiment, upper housing 121 includes: upper receiving portion 121a and interconnecting piece 121b, under lower case 122 includes
Receiving portion 122a.When upper housing 121 and lower case 122 connect, upper receiving portion 121a and lower receiving portion 122a are docked and are surrounded
It is formed with the accommodating chamber 12a for accommodating driving mechanism 13, interconnecting piece 121b is used for so that head capsule 12 is connected to connecting rod 221, from
And work head 10 is mounted on the connecting rod 221 of connection component 22, so that work head 10 is mounted to tool
Host 20.Wherein, interconnecting piece 121b is also integrally formed with upper receiving portion 121a, in this way, head capsule 12 only includes 121 He of upper housing
122 two parts of lower case, so that the structure of entire head capsule 12 is simpler, upper receiving portion 121a and company in upper housing 121
Socket part 121b is integrally formed by a mold, and lower case 122 is integrally formed by another mold, in this way, it is only necessary to two
A mold can complete the manufacture of head capsule 12, so as to greatly reduce manufacturing cost.And the intensity of head capsule 12 becomes
More preferably, the integrality of complete machine is more preferable, and appearance is also relatively more succinct, and user can also be easier easily to open head capsule 12 to appearance
The part received in chamber 12a repairs.Furthermore upper housing 121 and about 122 lower case are arranged, can in assembly working head 10
It is more steady so as to be easier first positioning part a part in accommodating chamber 12a to upper housing 121 or lower case 122
Fixed assembly working head 10.
Specifically, upper receiving portion 121a includes: upper surrounding wall 121c, roof 121d and upper flange portion 121e.On surround
Wall 121c is arranged around first axle 101, and roof 121d is arranged in the upper end of upper surrounding wall 121c, and upper surrounding wall 121c is around the
One axis 101 is formed by space and opens wide downwards, and roof 121d surrounding wall 121c on the upper end closed of upper surrounding wall 121c encloses
Space is formed by around first axle 101.Upper flange portion 121e is extended radially outward from the outer surface of upper surrounding wall 121c.Its
In, upper surrounding wall 121c, roof 121d and upper flange portion 121e are integrally formed.Lower receiving portion 122a include: lower surrounding wall 122b,
Bottom wall 122c and lower flange portion 122d.Lower surrounding wall 122b is arranged around first axle 101, and lower surrounding wall 122b surrounds first axle
Line 101 is formed by space and is open upwards to be formed by space with upper surrounding wall 121c and be connected to.Bottom wall 122c setting is enclosed under
Around the lower end of wall 122b.The outer surface of lower flange portion 122d from lower surrounding wall 122b extend radially outward.Lower flange portion 122d
It cooperates with upper flange portion 121e, and when upper flange portion 121e and lower flange portion 122d is connected by connector 123, to make
Obtain 121 and lower case 122 connections of upper housing.
It is also upwardly extended in the outer surface of the roof 121d of upper housing 121 and is formed with grass-winding proof muscle 121f, grass-winding proof muscle
121f and upper housing 121 are integrally formed, and grass-winding proof muscle 121f can effectively prevent weeds to be wound in work head 10, in addition prevent
It twines careless muscle 121f and also acts as the effect for increasing the structural strength of head capsule 12.
Driving mechanism 13 includes: power reception part 131 and transmission component 132, and power reception part 131 is for receiving driving force
And driving force is introduced into work head 10.Transmission component 132 realizes power between power reception part 131 and blade assembly 11
Transmitting, transmission component 132 be arranged in accommodating chamber 12a.
Wherein, power reception part 131 is a bevel gear, which can be defined as first bevel gear, the first cone tooth
Wheel can be enough at connection, when first bevel gear is connect with long axis 222, first bevel gear by a long axis 222 and motor 232
It is enough at synchronous rotation with long axis 222, so that motor 232 can output power to work head 10.
Transmission component 132 includes: second bevel gear 132a, transmission shaft 132b, the first drive shaft 132c, the second drive shaft
132d, first gear 132e, second gear 132f and third gear 132g.
Wherein, second bevel gear 132a and first bevel gear are enough at transmission cooperation, and second bevel gear 132a is installed to transmission
On axis 132b, the entirety of transmission shaft 132b and second bevel gear 132a enough can be axis rotation, transmission shaft with second axis 102
Driving cog 132h is also formed on 132b.First drive shaft 132c is for driving the first blade 111 to turn with first axle 101 for axis
Dynamic, first gear 132e is installed to the first drive shaft 132c, the entirety of first gear 132e and the first drive shaft 132c enough
It can be axis rotation with first axle 101.In the present embodiment, first gear 132e and the first drive shaft 132c are fixedly connected.The
Two gear 132f are installed to the second drive shaft 132d, and the second drive shaft 132d and second gear 132f are integrally formed.In this reality
It applies in example, the first drive shaft 132c also extends through the second drive shaft 132d, that is to say the second drive shaft 132d and the first drive shaft
132c coaxial arrangement, first gear 132e and second gear 132f are also coaxially disposed, in this way, the driving of second gear 132f and second
Axis 132d enough entirety also can be axis rotation with first axle 101, so that 112 energy of the first blade 111 and the second blade
Enough rotate coaxially.In the present embodiment, the diameter of second gear 132f is also less than the diameter of first gear 132e, in this way, first
Gear 132e can realize the transmitting of power by way of directly engaging with driving cog 132h.And second gear 132f's is straight
Diameter is smaller, therefore needs that third gear 132g, third gear 132g energy is arranged between second gear 132f and driving cog 132h
Be axis rotation with third axis 103, specifically, driving cog 132h is engaged with third gear 132g, third gear 132g but with
Second gear 132f engagement.In this way, it should be understood that can be by second bevel gear 132a, transmission shaft 132b and first gear
132e enough entirety is considered to realize the first of the transmitting of power between power reception part 131 and the first drive shaft 132c
Gear train can be recognized with the enough entirety of second bevel gear 132a, transmission shaft 132b, third gear 132g and second gear 132f
To be the second gear system that can realize the transmitting of power between power reception part 131 and the second drive shaft 132d.Wherein, it is driven
The second axis 102 of axis 132b rotation is parallel to each other with first axle 101 and is not overlapped, the third axis of third gear 132g rotation
Line 103 is parallel to each other with first axle 101 and is not overlapped, so that entire driving assembly is along 101 side of first axle
Upward size is smaller, to advantageously reduce entire work head 10 in the size on 101 direction of first axle, and then advantageous
In the center of gravity for reducing work head 10, stability is improved.
It is known that in order to improve the service life of work head 10, can be filled in accommodating chamber 12a for driving mechanism 13 into
The lubricating oil of row lubrication.In the present embodiment, in order to enable mold is simpler, appearance is more beautiful for work head 10,12 institute of head capsule
The accommodating chamber 12a of formation needs consistent as far as possible in the size radially perpendicular to first axle 101.But second gear 132f
Diameter be less than the diameter of first gear 132e, and the downside of first gear 132e is arranged in second gear 132f, in this way, the
The downside of one gear 132e and there is an area of space at the periphery of second gear 132f, which that is to say appearance
Receive chamber 12a cavity wall and second gear 132f between be formed by gap.In this way, when driving mechanism 13 is run, second gear
The high speed rotation of 132f can get rid of lubricating oil into area of space, so that the lubricant effect of first gear 132e can be seriously affected,
Therefore, in the present embodiment, work head 10 further includes the plastic stent 15 for improving lubricant effect.Specifically, plastics branch
Frame 15 includes surrounding portion second gear 132f around portion 151, is arranged around portion 151 around first axle 101, surrounds portion
151 positioned at first gear 132e downsides and be located at second gear 132f periphery, thus around portion 151 can play filling with
The effect of upper described area of space, and then second gear 132f can effectively be prevented to throw away lubricating oil in rotation, it improves
To the lubricant effect of second gear 132f.Likewise, plastic stent 15 can also to other parts in driving mechanism 13 into
Row is around to fill the gap between these parts and head capsule 12.
As shown in Fig. 4, Fig. 5, Fig. 9 and Figure 10, the first blade 111 includes: the first noumenon portion 111a and the first cutter tooth portion
111b.The first noumenon portion 111a is formed with the first mounting hole 111c centered on first axle 101 and around first axle 101,
First axle 101 passes through the first mounting hole 111c, the first mounting hole 111c for installing the first blade 111 to the first drive shaft
132c is so that the first blade 111 and the first drive shaft 132c are enough at synchronous rotation.First cutter tooth portion 111b is for realizing mowing
Function, the number of the first cutter tooth portion 111b be it is multiple, multiple first cutters tooth portion 111b is in the circumference side for surrounding first axle 101
It is arranged successively upwards.Second blade 112 includes: the second body part 112a and the second cutter tooth portion 112b, the second body part 112a
It is formed with the second mounting hole 112c centered on first axle 101 and around first axle 101, first axle 101 passes through second
Mounting hole 112c, the second mounting hole 112c are for installing the second blade 112 to the second drive shaft 132d so that the second blade
112 and second drive shaft 132d it is enough at synchronous rotation.Function of the second cutter tooth portion 112b for realizing mowing, the second cutter tooth portion
The number of 112b be it is multiple, multiple second cutters tooth portion 112b around first axle 101 circumferencial direction on be arranged successively.At this
In embodiment, multiple first straw outlet 111d are also formed on the first noumenon portion 111a, the first straw outlet 111d is parallel on edge
The side of first axle 101 extends upward through the first noumenon portion 111a.In this way, grass cuttings can be from first when blade assembly 11 is when mowing
Cutter tooth portion 111b or the second cutter tooth portion 112b nearby enters the position between the first blade 111 and the second blade 112, for a long time
In this way, the first blade 111 and the second blade 112 can be made stuck, and in the present embodiment, by being set on the first blade 111
It is equipped with the first straw outlet 111d, in this way, entering the first blade during the first blade 111 and the second blade 112 rotate
111 and the second grass cuttings between blade 112 can be expelled to except blade assembly 11 from the first straw outlet 111d, so as to keep away
Exempt from the stuck problem of blade assembly 11.Moreover, in the present embodiment, the first straw outlet 111d is arranged in the first knife of downside
On piece 111, in this way, the grass cuttings being discharged from the first straw outlet 111d can be made directly to fall on ground, and grass cuttings is avoided to arrange
Situation about being deposited in after out on the outer surface of blade assembly 11.
More specifically, in the present embodiment, the first noumenon portion 111a includes the first inward flange 111e and the first outer edge
111f, the first inward flange 111e are surrounded and are formd the first mounting hole 111c, second outer edge 112e the first cutter tooth of connection portion 111b.
Second body part 112a includes the second inward flange 112d and the second outer edge 112e, and the second inward flange 112d is around foring second
Mounting hole 112c, second outer edge 112e the second cutter tooth of connection portion 112b.In the present embodiment, the first straw outlet 111d is located at the
Between one inward flange 111e and the first outer edge 111f.And the second body part 112a is continuous and uninterrupted from the second inward flange 112d
Extend to the second outer edge 112e, the hole wall that is to say the second body part 112a from the second mounting hole 112c continuously extends to
Second outer edge 112e that is to say and straw outlet is not formed on the second body part 112a.In this way, grass cuttings can be conducive to from being located at
First straw outlet 111d of 112 downside of the second blade is expelled to ground, so that grass cuttings be avoided to be deposited on blade assembly 11.
Still further, in the present embodiment, the sum of area of whole first straw outlet 111d and the first noumenon portion
The ratio of the area of 111a is more than or equal to 0.1 and is less than or equal to 0.5, on the one hand can have enough spaces to arrange grass cuttings
Out, on the other hand can also avoid all the first straw outlet 111d area it is excessive and caused by the first blade 111 intensity not
Enough problems.
In the present embodiment, multiple first straw outlet 111d around first axle 101 a circumferencial direction on successively
Arrangement, so that being located near the first straw outlet 111d when the first blade 111 and the second blade 112 relatively rotate
Grass cuttings can be discharged from any one the first straw outlet 111d.
The perspective view of the blade assembly 31 in the mowing tool of second embodiment is shown such as Figure 11, in the present embodiment,
Mowing tool can have operating assembly, connection component and aft-end assembly as in the first embodiment, and mowing tool is also
Including the work head for realizing mowing function, which may include head capsule as in the first embodiment, driving machine
Structure and shield, distinguishing the work head being only that in the present embodiment includes the blade assembly 31 being different from the first embodiment.Wherein,
The part being adapted in first embodiment with the present embodiment can be applied in the present embodiment, not repeat specifically.Have below
Body introduces the blade assembly 31 in the present embodiment.
As is illustrated by figs. 11 and 12, blade assembly 31 includes: positioned at the first blade 311 of downside and positioned at the second of upside
Blade 312.First blade 311 includes: the first noumenon portion 311a and the first cutter tooth portion 311b, and the first noumenon portion 311a is with first axle
It is formed with the first mounting hole 311c centered on line 301 and around first axle 301, first axle 301 passes through the first mounting hole
311c.For first cutter tooth portion 311b for realizing the function of mowing, the number of the first cutter tooth portion 311b is multiple, multiple first cutters tooth
Portion 311b is arranged successively on the circumferencial direction around first axle 301.Second blade 312 include: the second body part 312a and
Second cutter tooth portion 312b, the second body part 312a are also formed with second centered on first axle 301 and around first axle 301
Mounting hole 312c, first axle 301 pass through the second mounting hole 312c.Second cutter tooth portion 312b for realizing mowing function,
The number of two cutter tooth portion 312b be it is multiple, multiple second cutters tooth portion 312b around first axle 301 circumferencial direction on successively
Arrangement.Wherein, first axle 301 can also be referred to as the pivot center of the first blade 311 or the second blade 312.
In the present embodiment, the first straw outlet 311d, the number of the first straw outlet 311d are formed on the first noumenon portion 311a
Mesh be it is multiple, the first straw outlet 311d is extending upward through the first noumenon portion 311a along the side for being parallel to first axle 301.Second
Be formed on body portion 312a the second straw outlet 312d, the second straw outlet 312d number be it is multiple, the second straw outlet 312d is on edge
The side for being parallel to first axle 301 extends upward through the second body part 312a.Wherein, the second edge straw outlet 312d is parallel to first axle
Projection of 301 direction of line in a plane perpendicular to first axle 301 is always positioned at the first edge straw outlet 311d and is parallel to
301 direction of first axle is except the projection in the plane.In other words, opposite second blade 312 of the first blade 311 turns to
When any position, the first straw outlet 311d and the second straw outlet 312d are dislocation.Thus it is possible, on the one hand, grass cuttings both can be from
First straw outlet 311d is discharged, and can also be discharged from the second straw outlet 312d, and because the first straw outlet 311d and second row
Careless mouth 312d dislocation, increases the area for capableing of Lysimachia sikokiana, so that then when grass cuttings cannot be discharged from the first straw outlet 311d
It can may be discharged from the second straw outlet 312d, so that the major part between the first blade 311 and the second blade 312
The grass cuttings of position can be discharged, and improve the ability of Lysimachia sikokiana.
Specifically, in the present embodiment, the number of the first straw outlet 311d is multiple, the first straw outlet of a portion
311d is arranged on the first circumference with the first radius, some straw outlet is on the second circumference with the second radius
Arrangement, wherein the first radius is less than the second radius.The number of second straw outlet 312d is multiple, the second Lysimachia sikokiana of a portion
Mouth 312d is arranged on the third circumference with third radius, some the second straw outlet 312d has the 4th radius
It is arranged on 4th circumference, wherein third radius is less than the 4th radius.Wherein, third radius is greater than the first radius and less than second
Radius, the 4th radius are greater than the second radius, so that the first straw outlet 311d and the second straw outlet 312d is along perpendicular to the
One axis 301 radially successively misplaces, so that the first straw outlet 311d is equal when the first blade 311 turns to any position
It misplaces with the second straw outlet 312d, there is no the parts of overlapping by the first straw outlet 311d and the second straw outlet 312d, and then improve
Lysimachia sikokiana ability.
The structure chart of the blade assembly 41 in the mowing tool of 3rd embodiment is shown such as Figure 13, in the present embodiment,
Mowing tool can have operating assembly, connection component and aft-end assembly as in the first embodiment, and mowing tool is also
Including the work head for realizing mowing function, which may include head capsule as in the first embodiment, driving machine
Structure and shield, distinguishing the work head being only that in the present embodiment includes the blade assembly 41 being different from the first embodiment.Wherein,
It can be applied in the present embodiment in first embodiment with the part being adapted in the present embodiment, do not repeating specifically.Below
Specifically introduce the blade assembly 41 in the present embodiment.
As shown in Figure 13 and Figure 14, blade assembly 41 includes: positioned at the first blade 411 of downside and positioned at the second of upside
Blade 412.First blade 411 includes: the first noumenon portion 411a and the first cutter tooth portion 411b, and the first noumenon portion 411a is with first axle
It is formed with the first mounting hole 411c centered on line 401 and around first axle 401, first axle 401 passes through the first mounting hole
411c.For first cutter tooth portion 411b for realizing the function of mowing, the number of the first cutter tooth portion 411b is multiple, multiple first cutters tooth
Portion 411b is arranged successively on the circumferencial direction around first axle 401.Second blade 412 include: the second body part 412a and
Second cutter tooth portion 412b, the second body part 412a are also formed with second centered on first axle 401 and around first axle 401
Mounting hole 412c, first axle 401 pass through the second mounting hole 412c.Second cutter tooth portion 412b for realizing mowing function,
The number of two cutter tooth portion 412b be it is multiple, multiple second cutters tooth portion 412b around first axle 401 circumferencial direction on successively
Arrangement.Wherein, first axle 401 can also be referred to as the pivot center of the first blade 411 or the second blade 412.
In the present embodiment, the first straw outlet 411d, the number of the first straw outlet 411d are formed on the first noumenon portion 411a
Mesh be it is multiple, the first straw outlet 411d is extending upward through the first noumenon portion 411a along the side for being parallel to first axle 401.Second
Be formed on body portion 412a the second straw outlet 412d, the second straw outlet 412d number be it is multiple, the second straw outlet 412d is on edge
The side for being parallel to first axle 401 extends upward through the second body part 412a.Wherein, all the first straw outlet 411d along being parallel to the
Projection of the direction of one axis 401 in a plane perpendicular to first axle 401 is defined as the first projection, whole second rows
The careless edge mouth 412d is parallel to projection of the direction of first axle 401 in a plane perpendicular to first axle 401 and is defined as
Second projection.When the first blade 411 and the second blade 412 relatively rotate, the first projection and the second projection are least partially overlapped,
And the overlapping area defined when the first projection and most the second projection overlapping is Maximum overlap area, the Maximum overlap area and the
The ratio of the area of one projection is greater than 0 and is less than or equal to 0.2, furthermore, the face of the maximal projection area and the second projection
Long-pending ratio is greater than 0 and is less than or equal to 0.2.In this way, the grass cuttings between the first blade 411 and the second blade 412 can be more
It is readily discharged from the first straw outlet 411d or the second straw outlet 412d, further improves Lysimachia sikokiana ability.
In the present embodiment, the number of the first straw outlet 411d be it is multiple, a portion the first straw outlet 411d has
It is arranged on first circumference of the first radius, some straw outlet arranges on the second circumference with the second radius, wherein
First radius is less than the second radius.In addition some first straw outlet 411d prolongs along the radial direction perpendicular to first axle 401
It stretches.The number of second straw outlet 412d be it is multiple, a portion the second straw outlet 412d with third radius third circle
It is arranged on week, some the second straw outlet 412d is arranged on the 4th circumference with the 4th radius, wherein third radius
Less than the 4th radius.In addition, some second straw outlet 412d is along radially extending perpendicular to first axle 401.Wherein,
Third radius is greater than the first radius and less than the second radius, and the 4th radius is greater than the second radius, so that the first straw outlet
411d and the second straw outlet 412d is along radially successively misplacing perpendicular to first axle 401.Meanwhile first on blade 411
The the first straw outlet 411d radially extended can be Chong Die with part the second straw outlet 412d, and radially prolongs on the second blade 412
The the second straw outlet 412d stretched can be Chong Die with part the first straw outlet 411d.In this way, Lysimachia sikokiana ability not only can be improved, simultaneously also
It can guarantee the structural strength of the first blade 411, the second blade 412.
The plan view that the work head 50 in the mowing tool of fourth embodiment is shown such as Figure 15 is cut in the present embodiment
Careless tool can have operating assembly, connection component and aft-end assembly as in the first embodiment.Such as Figure 15 and Figure 16
Shown, mowing tool further includes the work head 50 for realizing mowing function, which may include and first embodiment
In identical head capsule and shield 54, work head 50 further includes for realizing the blade assembly 51 of mowing function and for driving
The driving mechanism 53 of blade assembly 51, the structure different from of the blade assembly 51 and first embodiment.Driving mechanism 53 has
As in the first embodiment: the second drive shaft 532, difference are only that driving mechanism 53 includes being different from the first embodiment
First drive shaft 531.Wherein, it can be applied to the present embodiment with the part being adapted in the present embodiment in first embodiment
In, it is not repeating specifically.The part in the present embodiment with first embodiment difference is mainly specifically introduced below.
As shown in Figure 16 to Figure 20, in the present embodiment, blade assembly 51 includes the first blade 511 and position positioned at downside
The second blade 512 in upside, driving mechanism 53 can drive the first blade 511 with first axle 501 be axis along the first rotation side
To rotation, driving structure can also drive the second blade 512 to rotate for axis along the second rotation direction with first axle 501.This first
Axis 501 can also be called the pivot center of the first blade 511 or the second blade 512.
First blade 511 is formed with of the first drive shaft 531 for being connected to the first blade 511 in driving structure
One mounting hole 511a, first axle 501 pass through the first mounting hole 511a.Second blade 512 is formed with for by the second blade 512
It is connected to the second mounting hole 512a of the second drive shaft 532 in driving mechanism 53, first axle 501 passes through the second mounting hole
512a。
First blade 511 is along radially having in the first of the first mounting hole 511a perpendicular to first axle 501
The first outer end 511c of end 511b and separate first mounting hole 511a, the first inner end 511b surround 501 shape of first axle
At the first above-mentioned mounting hole 511a.Second blade 512 is along radially having close to the second installation perpendicular to first axle 501
The second outer end 512c of the second inner end 512b of hole 512a and separate second mounting hole 512a, the second inner end 512b are surrounded
First axle 501 forms the second above-mentioned mounting hole 512a.Wherein, when the first blade 511 is not affected by any external force, the first knife
Piece 511 is one and extends in the plane perpendicular to first axle 501, in other words, when manufacturing the first blade 511,
One blade 511 is manufactured into a plane blade, likewise, the second blade 512 is when being not affected by any external force, the second knife
Piece 512 is also to extend in the plane perpendicular to first axle 501, in other words, when manufacturing the second blade 512, second
Blade 512 is to be manufactured into a plane blade.In this way, on the one hand making the molding of the first blade 511 and the second blade 512 more
To be simple, manufacturing cost is reduced, and on the other hand enhances the cutting power of blade assembly 51, while can be avoided set of blades
The problem of part 51 may throw away some hard objects.
Specifically, the first drive shaft 531 passes through the first mounting hole 511a and the second mounting hole 512a, the first drive shaft
It is also formed with the first spacer portion 531a, the first spacer portion 531a on 531 and is at least partially disposed in the first inner end 511b and second
So that forming gap between the first inner end 511b and the second inner end 512b between inner end 512b.Or in other implementations
In example, it is also possible that forming second be at least partially disposed between the first inner end and the second inner end in the second drive shaft
Spacer portion similarly to form above-mentioned gap between the first inner end and the second inner end.Alternatively, in other embodiments
In, work head can also include a spacer for being different from the first drive shaft, the second drive shaft, which includes few
The spacer portion between the first inner end and the second inner end is arranged in part, can similarly make in the first inner end and second
Above-mentioned gap is formed between end.In fact, it is also assumed that spacer and the first drive shaft are integrally formed, in the first drive shaft
The first spacer portion be considered spacer；It is also believed that spacer and the second drive shaft are integrally formed, in the second drive shaft
Second spacer portion is considered spacer.
Still further, it further includes compressing member 55 that work, which has, and the downside of the first blade 511 is arranged in compressing member 55, pressure
Tight part 55 includes compressed part 551, and compressed part 551 applies pressure so that the first outer end 511c is conformed to the first blade 511
Second outer end 512c.In this way, passing through the first spacer portion when the first blade 511 and the second blade 512 are plane blade
531a makes the first blade 511 and the second blade 512 be spaced setting between the first inner end 511b and the second inner end 512b,
Pressure is applied so that the first outer end 511c is bonded with the second outer end 512c to the first blade 511 further through compressed part 551,
So that the gap between the first blade 511 and the second blade 512 is radially gradually reduced from inside to outside.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that above-described embodiment does not limit the utility model in any form, it is all by the way of equivalent substitution or equivalent transformation
Technical solution obtained, all falls in the protection scope of the utility model.
Claims (10)
1. a kind of work head for mowing, comprising:
Blade assembly, including the first blade and the second blade；
Driving mechanism, for driving first blade and second blade to rotate by axis of a pivot center；
Head capsule accommodates at least partly described driving mechanism；
It is characterized by:
First blade is formed with the first mounting hole for first blade to be connected to the driving mechanism, and described turn
Shaft line passes through first mounting hole；Second blade is formed with for second blade to be connected to the driving machine
Second mounting hole of structure, the pivot center pass through second mounting hole；
First blade along perpendicular to the pivot center radially include close to first mounting hole first in
End and the first outer end far from first mounting hole, first inner end form described the around the pivot center
One mounting hole；Second blade is along perpendicular to the pivot center radially including close to the of second mounting hole
Second outer end of two inner ends and separate second mounting hole, second inner end form institute around the pivot center
State the second mounting hole；Along being parallel on the direction of the pivot center, first inner end and second inner end it
Between be formed with gap, first outer end and second outer end fitting；
Wherein, the work head further include:
Spacer, including be at least partially disposed between first inner end and second inner end so that in described first
The spacer portion in the gap is formed between end and second inner end.
2. the work head according to claim 1 for mowing, it is characterised in that:
Gap between first blade and the second blade is radially gradually reduced from inside to outside.
3. the work head according to claim 1 for mowing, it is characterised in that:
The work head further include:
Compressing member, including for applying pressure so that the first outer end of first blade conforms to institute to first blade
State the compressed part of the second outer end.
4. the work head according to claim 3 for mowing, it is characterised in that:
Definition be directed toward along the pivot center direction by the head capsule first blade direction be under, along the pivot center
Direction is upper by the direction that first blade is directed toward the head capsule；Wherein, first blade is set to second blade
Downside.
5. the work head according to claim 1 for mowing, it is characterised in that:
The driving mechanism includes:
First drive shaft passes through first mounting hole and second mounting hole；
The spacer and first drive shaft are integrally formed.
6. the work head according to claim 1 for mowing, it is characterised in that:
Definition be directed toward along the pivot center direction by the head capsule first blade direction be under, along the pivot center
Direction is upper by the direction that first blade is directed toward the head capsule；Wherein, first blade is set to second blade
Downside；
The driving mechanism includes:
Second drive shaft passes through second mounting hole；
The spacer and second drive shaft are integrally formed.
7. a kind of mowing tool, including
Operating assembly, for for user's operation；
Work head, for mowing；
Connection component connects the operating assembly and the work head；
The work head includes:
Blade assembly, including the first blade and the second blade；
Driving mechanism, for driving first blade and second blade to rotate by axis of a pivot center；
Head capsule accommodates at least partly described driving mechanism；
It is characterized by:
First blade is formed with the first mounting hole for first blade to be connected to the driving mechanism, and described turn
Shaft line passes through first mounting hole；Second blade is formed with for second blade to be connected to the driving machine
Second mounting hole of structure, the pivot center pass through second mounting hole；
First blade along perpendicular to the pivot center radially include close to first mounting hole first in
End and the first outer end far from first mounting hole, first inner end form described the around the pivot center
One mounting hole；Second blade is along perpendicular to the pivot center radially including close to the of second mounting hole
Second outer end of two inner ends and separate second mounting hole, second inner end form institute around the pivot center
State the second mounting hole；Along being parallel on the direction of the pivot center, first inner end and second inner end it
Between be formed with gap, first outer end and second outer end fitting；
Wherein, the work head further include:
Spacer, including be at least partially disposed between first inner end and second inner end so that in described first
The spacer portion in the gap is formed between end and second inner end.
8. mowing tool according to claim 7, it is characterised in that:
Gap between first inner end and second inner end is radially gradually reduced from inside to outside.
9. mowing tool according to claim 7, it is characterised in that:
The work head further include:
Compressing member, including for applying pressure so that the first outer end of first blade conforms to institute to first blade
State the compressed part of the second outer end.
10. mowing tool according to claim 9, it is characterised in that:
Definition be directed toward along the pivot center direction by the head capsule first blade direction be under, along the pivot center
Direction is upper by the direction that first blade is directed toward the head capsule；Wherein, first blade is set to second blade
Downside.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018205240217 | 2018-04-13 | ||
| CN201820524021 | 2018-04-13 |
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| CN209201538U true CN209201538U (en) | 2019-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821321209.8U Active CN208956449U (en) | 2018-04-13 | 2018-08-15 | A kind of brush cutter |
| CN201821321239.9U Active CN209201538U (en) | 2018-04-13 | 2018-08-15 | Work head and mowing tool for mowing |
| CN201821321168.2U Active CN209201537U (en) | 2018-04-13 | 2018-08-15 | Work head and mowing tool for mowing |
| CN201980001116.8A Pending CN110740633A (en) | 2018-04-13 | 2019-03-29 | Working head for mowing and mowing tool |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821321209.8U Active CN208956449U (en) | 2018-04-13 | 2018-08-15 | A kind of brush cutter |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821321168.2U Active CN209201537U (en) | 2018-04-13 | 2018-08-15 | Work head and mowing tool for mowing |
| CN201980001116.8A Pending CN110740633A (en) | 2018-04-13 | 2019-03-29 | Working head for mowing and mowing tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN208956449U (en) * | 2018-04-13 | 2019-06-11 | 南京德朔实业有限公司 | A kind of brush cutter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3290430B2 (en) * | 1999-06-08 | 2002-06-10 | 正孝 小竹 | Brush cutter |
| KR100957627B1 (en) * | 2009-10-26 | 2010-05-13 | 양안종 | Bearing uint and protect cover for brush cutter using that |
| KR101414880B1 (en) * | 2011-10-21 | 2014-07-03 | 허태구 | A double-edged revolution is possible The brush cutter knife and knife operating method and knife operating device |
| CN107439130B (en) * | 2016-05-30 | 2020-01-31 | 南京德朔实业有限公司 | Vegetation cutting tool |
| CN205922031U (en) * | 2016-07-20 | 2017-02-08 | 慈溪市华之杰塑料制品有限公司 | Formula of swaing head of beating grass |
| CN206674510U (en) * | 2017-03-06 | 2017-11-28 | 东莞市华加日工具有限公司 | The special high tenacity safety blade of hay mover |
| CN206713419U (en) * | 2017-03-29 | 2017-12-08 | 赵静梵 | A kind of small-sized adjustable cutting angle hay mover |
| CN208956449U (en) * | 2018-04-13 | 2019-06-11 | 南京德朔实业有限公司 | A kind of brush cutter |
-
2018
- 2018-08-15 CN CN201821321209.8U patent/CN208956449U/en active Active
- 2018-08-15 CN CN201821321239.9U patent/CN209201538U/en active Active
- 2018-08-15 CN CN201821321168.2U patent/CN209201537U/en active Active
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| Publication number | Publication date |
|---|---|
| CN208956449U (en) | 2019-06-11 |
| CN209201537U (en) | 2019-08-06 |
| CN110740633A (en) | 2020-01-31 |
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Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Patentee after: Nanjing Quanfeng Technology Co.,Ltd. Address before: No. 529, Jiangjun Avenue, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province Patentee before: NANJING CHERVON INDUSTRY Co.,Ltd. |
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