CN207269427U - Pruner - Google Patents

Abstract

The utility model discloses a kind of pruner, including：Blade assembly, motor and housing, formed with rear handle and front handlebar, blade assembly includes being symmetrical arranged on a symmetrical plane with the first end of housing connection and the second end opposite with first end, housing housing on along the longitudinal axis；Handle includes rear grip part afterwards；Front handlebar includes：For the main grip part, the side grip part for the another hand gripping for user when carrying out lateral incision and the connecting portion of connecting portion connecting side grip part and housing gripped for another hand of the user when carrying out truncation；Wherein, the line of main grip part and second end is projected as first straight line on symmetrical plane, connecting portion and the line of second end are projected as second straight line on symmetrical plane, first straight line and second straight line are crossed to form an angle, the side that angle opens wide is around forming angle region, and the projection of the center of gravity of pruner in symmetrical plane is in folder angular domain.The pruning of the pruner is smooth, effect is good.

Description

Pruner

Technical field

It the utility model is related to a kind of pruner, and in particular to the blade assembly of pruner.

Background technology

Pruner is as a kind of garden class instrument, it is for user's operation with vegetation such as topiary, hedgerows.

Pruner would generally include：Housing, motor, transmission component and blade assembly, wherein, blade assembly includes producing Relative motion is given birth to realize the first blade of cutting function and the second blade.

First blade includes multiple cutting teeths, and multiple cutting teeths usually arrange at equal intervals.But existing pruner Cutting power cannot be met the needs of users, and cutting efficiency is also than relatively low.

In addition, when the existing pruner of operation is pruned, the phenomenon of pruner run-off the straight often occurs in user, In this way, user cannot smoothly control pruner, so as to be easy to cause the problem of irregular, pruning effect is poor of pruning.

Utility model content

To solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of user more stably to carry out The pruner of control.

In order to realize above-mentioned target, the utility model adopts the following technical scheme：

A kind of pruner, including：Blade assembly, motor, transmission component, supply unit and housing, blade assembly include the One blade and can the second blade for moving back and forth along the longitudinal axis of opposite first blade, motor be used to driving the second blade with Relative motion is produced between first blade, transmission component is used for the transmission that power is realized between motor and blade assembly, power supply Device is used to power for motor, and housing forms or be connected with the rear handle and front handlebar for being gripped for user, blade assembly It is right on one with the first end of housing connection and the second end opposite with first end, housing to include on along the longitudinal axis Plane is claimed to be symmetrical arranged, rear handle and motor are arranged on the homonymy of front handlebar；Wherein, rear handle includes：For one for user The rear grip part that hand grips；Front handlebar includes：Main grip part, side grip part and connecting portion, main grip part are used to exist for user Another hand when carrying out truncation grips, and side grip part is used to grip for another hand of the user when carrying out lateral incision, connecting portion Connecting side grip part and housing；Wherein, the line of the second end of main grip part and blade assembly is projected as on symmetrical plane The line of the second end of one straight line, connecting portion and blade assembly is projected as second straight line, first straight line and on symmetrical plane In an angle, the side that angle opens wide is around angle region is formed, and the center of gravity of pruner is in symmetrical plane for two straight line intersection shapes Interior projection is in folder angular domain.

Further, on along the longitudinal axis, the center of gravity of pruner is arranged between rear grip part and main grip part.

Further, motor includes：The motor shaft that can be rotated using an electrical axis perpendicularly to the longitudinal axis as axis；Its In, along electrical axis direction, the center of gravity of pruner is arranged between main grip part and connecting portion；The connection connection of side grip part Portion and main grip part.

Further, motor includes：The motor shaft that can be rotated using an electrical axis perpendicularly to the longitudinal axis as axis；On edge On electrical axis direction, front handlebar has the minimum point farthest away from main grip part；Wherein, along electrical axis direction, blade Component is arranged between the center of gravity of pruner and the minimum point of front handlebar.

Further, motor includes：The motor shaft that can be rotated using an electrical axis perpendicularly to the longitudinal axis as axis；On edge On electrical axis direction, the center of gravity of side grip part and pruner is arranged between main grip part and connecting portion.

Further, motor includes：The motor shaft that can be rotated using an electrical axis perpendicularly to the longitudinal axis as axis；On edge On electrical axis direction, connecting portion has the minimum point farthest away from main grip part；Wherein, along electrical axis direction, blade Component is arranged between the minimum point of front handlebar and rear grip part.

Further, supply unit includes：Inserted along the direction parallel to longitudinal axis to the battery pack of housing；Wherein, Along along electrical axis direction, the center of gravity of battery pack is arranged between the minimum point of front handlebar and rear grip part.

Further, motor includes：The motor shaft that can be rotated using an electrical axis perpendicularly to the longitudinal axis as axis；On edge On electrical axis direction, front handlebar has the preceding peak farthest away from blade assembly, and rear handle has farthest away from blade assembly Peak afterwards；Wherein, along electrical axis direction, preceding peak is between rear peak and the center of gravity of pruner.

Further, the angle that first straight line and second straight line are crossed to form is more than or equal to 15 degree and less than or equal to 22 degree.

Further, pruner further includes：In the service cover of the downside of housing closing housing；Motor further includes can be with an electricity Arbor line is the motor shaft that axis rotates；Wherein, along electrical axis direction, the lower edge of service cover and the lower edge pair of housing Together.

The utility model is beneficial in that：User can more stably control pruner, so that it is more flat to prune Whole, pruning effect is more preferable.

Brief description of the drawings

Fig. 1 is the stereogram of the pruner of the first embodiment of the utility model；

Fig. 2 is the plan of the pruner in Fig. 1；

Fig. 3 is the top view of the pruner in Fig. 1；

Fig. 4 is the bottom view of the pruner in Fig. 1；

Fig. 5 is stereogram of the pruner after battery pack and partial shell is removed in Fig. 1；

Fig. 6 is plan of the pruner after battery pack and partial shell is removed in Fig. 1；

Fig. 7 is schematic diagram of the pruner when carrying out truncation in Fig. 1；

Fig. 8 is schematic diagram of the pruner when carrying out lateral incision in Fig. 1；

Fig. 9 is the plan of motor in Fig. 5, transmission component and blade assembly；

Figure 10 is explosive view of the structure shown in Fig. 9 after babinet is removed；

Figure 11 is the plan of structure shown in Figure 10；

Figure 12 is the plan of the first blade in Fig. 1；

Figure 13 is the enlarged drawing of the part-structure in Figure 12；

Figure 14 is the enlarged drawing of the part-structure in Fig. 3；

Figure 15 is the stereogram of the first switch and safety switch in Fig. 5；

Figure 16 is the stereogram of the pruner of the second embodiment of the utility model.

Embodiment

The pruner 100 of first embodiment shown in Fig. 1 is used for for user's operation to cut the plant such as various shrubs, hedgerow Quilt.

As shown in Figures 1 to 8, pruner 100 includes：Housing 11, motor 12, transmission component 20, blade assembly 30, power supply Device 13 and operating assembly 40.

Housing 11 is used to form the accommodating chamber 111 for accommodating motor 12 and transmission component 20, and housing 11 is also formed or connected There are front handlebar 112 and rear handle 113.Specifically, wherein, front handlebar 112 is connected to the outer wall of housing 11, rear handle 113 by The extension of housing 11 forms.Motor 12 and transmission component 20 are contained in accommodating chamber 111, and motor 12 is used to drive blade assembly 30 Realize cutting function, motor 12, which further includes, to be used for the motor shaft 121 that electrical axis 101 are axis rotation, transmission component 20 The transmission of power is realized between motor 12 and blade assembly 30.30 part of blade assembly is contained in the accommodating chamber 111 of housing 11 Interior, another part is extend out to outside housing 11 along 102 direction of longitudinal axis, the longitudinal axis 102 and motor shaft of blade assembly 30 Line 101 is mutually perpendicular to.Blade assembly 30 includes the first end 301 that is connected with housing 11 along 102 direction of longitudinal axis and with the The opposite second end 302 in one end 301, first end 301 can stretch to the accommodating chamber 111 of housing 11, and second end 302 is arranged on shell Outside body 11.Blade assembly 30 specifically includes the first blade 31 and opposite first blade 31 of energy is back and forth transported along 102 direction of longitudinal axis The second dynamic blade 32, motor 12 can drive and produce relative motion between the first blade 31 and the second blade 32.Supply unit 13 For powering for motor 12, supply unit 13 can be the power supply of direct current, such as in the present embodiment, supply unit 13 includes energy It is dismountable to install to the battery pack 131 of housing 11.Operating assembly 40 is used for for user's operation to control pruner 100 to carry out work Make.

The technical solution of the utility model for convenience of explanation, defining the direction in Fig. 1 shown in arrow is respectively：On Side, downside, left side, right side, front side and rear side.

Housing 11 upwardly extends to form above-mentioned rear handle 113, and front handlebar 112 is fixedly installed on housing 11, in other words, In the present embodiment, rear handle 113 itself is formed by housing 11, and front handlebar 112 passes through independently of housing 11, front handlebar 112 Fastener is fixed to housing 11.It will of course be understood that, in other embodiments, front handlebar 112 can also be with the one of housing 11 Shaping.Housing 11 further includes engaging portion 114, and engaging portion 114 is used to make battery pack 131 dismountable along 102 direction of longitudinal axis It is bound to housing 11.

Front handlebar 112 is arranged on the front side of rear handle 113, for operate pruner 100 carry out cutting operation when, user Front handlebar 112 and rear handle 113 can be gripped at the same time with both hands so as to fulfill more stable operation.Housing 11 is also parallel on one It is symmetrical arranged in the symmetrical plane of longitudinal axis 102.

Specifically, rear handle 113 and motor 12 are arranged on the homonymy of front handlebar 112, and rear handle 113 grips after further including Portion 1131, rear grip part 1131 are used to grip for the hand of user, and rear grip part 1131 extends in symmetrical plane.After grip Portion 1131 is also surrounded with engaging portion 114 to be used to pass through opening with grip part after gripping 1131 for the hand portion of user formed with one Mouth 115.

The relatively rear handle 113 of front handlebar 112 is closer to blade assembly 30, and front handlebar 112 is also with rear handle 113 in longitudinal axis A certain distance is spaced apart on 102 direction of line, so that the control pruner 100 that user can be more stable.Front handlebar 112 has Body includes：Main grip part 1121, side grip part 1122 and connecting portion 1123.As shown in fig. 7, main grip part 1121 is used to supply user Another hand when carrying out truncation grips.Main grip part 1121 also extends along perpendicularly to the longitudinal axis 102 direction, main gripping Portion 1121 is in the lateral direction across pruner 100.In this way, as shown in fig. 7, when user carries out truncation, user can be with one Grip part 1131, another hand grip main grip part 1121 after hand grips, so as to fulfill stable cutting.As shown in figure 8, side is held Portion 1122 is held to be used to grip for another hand of the user when carrying out lateral incision.The number of side grip part 1122 is 2, and two sides grip Portion 1122 is separately positioned on the both sides of main grip part 1121, and main grip part 1121 connects two sides grip part 1122, side grip part 1122 extending direction and the extending direction of main grip part 1121 are mutually perpendicular to, the extending direction of side grip part 1122 also with longitudinal direction Axis 102 tilts intersecting.In this way, as shown in figure 8, when user carries out lateral incision, user can be with grip part after a hand gripping 1131st, another hand grips side grip part 1122, so as to fulfill stable cutting.The number of connecting portion 1123 is 2, two connections Portion 1123 is connected with two sides grip part 1122 respectively, and connecting portion 1123 is used for connecting side grip part 1122 and housing 11.

Wherein, as shown in Fig. 2, the line of the second end 302 of main grip part 1121 and blade assembly 30 is on symmetrical plane It is projected as first straight line 103, the line of connecting portion 1123 and the second end 302 of blade assembly 30 is projected as the on symmetrical plane Two straight lines 104, first straight line 103 and second straight line 104 are crossed to form an included angle A, and the side that included angle A is opened wide surrounds and forms folder Angular zone, angle region are opened wide for 113 towards rear handle, wherein, the projection of the center of gravity of pruner 100 in symmetrical plane is located at In the angle region, furthermore, the center of gravity of pruner 100 is arranged between main grip part 1121 and connecting portion 1123, side Grip part 1122 connects connecting portion 1123 and main grip part 1121.In this way, when user carries out lateral incision, the hand of user grips Grip part 1131, another hand grip side grip part 1122 afterwards, and the hand of at this moment user's gripping side grip part 1122 can be as far as possible On the lower, so that center of gravity is between edge parallel to two hands of user are located at as far as possible on 101 direction of electrical axis, and It will not cause region of the center of gravity of pruner 100 outside two hands, so that pruner 100 will not occur in the lateral direction Tilt, and then realize more stable operation.In addition, along 102 direction of longitudinal axis, the center of gravity of pruner 100 is held after being located at Hold between portion 1131 and main grip part 1121, so that user is in truncation, 1131 He of grip part after the both hands of user grip respectively Main grip part 1121, at this moment, center of gravity is by between the both hands of user, so that pruner 100 will not occur in the up-down direction Tilt, and then realize more stable operation.

Specifically, along 101 direction of electrical axis, rear handle 113 has rear peak 1132, the rear peak 1132 that is to say the point of the top side of rear handle 113 in the up-down direction, and rear peak 1132 is also rear handle 113 in upper and lower Upwards farthest away from the point of blade assembly 30.Along along 101 direction of electrical axis, front handlebar 112 is with preceding peak 1124 and most Low spot 1125, preceding peak 1124 that is to say the point of the top side in the up-down direction of front handlebar 112, before minimum point 1125 that is to say Handle 112 above-below direction lower side point, preceding peak 1124 be also front handlebar 112 in the up-down direction farthest away from set of blades The point of part 30, minimum point 1125 are also front handlebar 112 in the up-down direction farthest away from the point of main grip part 1121.Along motor shaft On 101 direction of line, the preceding peak 1124 of front handlebar 112 is located at the rear minimum point 1125 of rear handle 113 and the weight of pruner 100 Between the heart, the center of gravity of battery pack 131 is arranged between the minimum point 1125 of front handlebar 112 and rear grip part 1131, blade assembly 30 are arranged between main grip part 1121 and the minimum point 1125 of front handlebar 112, and furthermore, blade assembly 30 is additionally arranged at Between the center of gravity of pruner 100 and the minimum point 1125 of front handlebar 112, motor 12 is also disposed at rear grip part 1131 and front handlebar Between 112 minimum point 1125, in this way, can cause the battery pack 131, motor 12 that the weight of pruner 100 compares larger With blade assembly 30 after being arranged on along 101 direction of electrical axis the minimum point 1125 of grip part 1131 and front handlebar 112 it Between, and battery pack 131, motor 12 and blade assembly 30 along 101 direction of electrical axis as far as possible close to center of gravity so that work as When user carries out lateral incision, the main weight-bearing portion of pruner 100 as far as possible positioned at user grip respectively after 1131 He of grip part Between the both hands of side grip part 1122, and then 100 run-off the straight of pruner when avoiding lateral incision, the stability of operation is improved.

Furthermore, the included angle A that first straight line 103 and second straight line 104 are crossed to form is more than or equal to 15 degree and is less than Equal to 22 degree so that pruner 100 as an entirety small as far as possible along the size on 101 direction of electrical axis, It is small so as to be conducive to 100 package size of pruner, it is user-friendly.

As a kind of concrete scheme, pruner 100 further includes service cover 14, and service cover 14 closes shell in the downside of housing 11 Body 11, it is possible to understand that, service cover 14 is it is also assumed that be a part for housing 11, the downside of housing 11 is extended with a pair of of lug 116,14 part of service cover is arranged between this pair of of lug 116, in this way, along 101 direction of electrical axis, service cover 14 Lower edge can align with the lower edge of housing 11, so that size of the housing 11 on 101 direction of electrical axis can obtain Reduced to further.

Motor 12 and transmission component 20 are arranged in the accommodating chamber 111 of the formation of housing 11, specifically, such as Fig. 5 to Figure 11 Shown, transmission component 20 further includes：Gear-box 21 and transition components 22, gear-box 21 are transferred to transmission group for reducing motor 12 The rotating speed of part 20, transition components 22 are used for the reciprocating motion for being converted into blade assembly 30 for passing over motor 12.

Gear-box 21 includes babinet 211 and gear for two stage planetary gear train 212, and gear for two stage planetary gear train 212 is arranged on babinet 211 and is enclosed Around into space in.The accommodating chamber 111 of housing 11 is also separated into upper cavity 1111 and lower chamber 1112, motor by babinet 211 12 are arranged in upper cavity 1111, and transition components 22 are arranged in lower chamber 1112.This gear for two stage planetary gear train 212 includes：First Sun gear 2121, the first planetary gear 2122, the first ring gear 2123, the first planetary wheel carrier 2124, the second planetary gear 2125, second 2126 and second planetary wheel carrier 2127 of ring gear.First sun gear 2121 is installed to motor shaft 121 and formed together with motor shaft 121 Step rotates, and the number of the first planetary gear 2122 is 3, and three the first planetary gears 2122 are engaged with the first sun gear 2121, three First planetary gear 2122 is also mounted respectively on the first planetary wheel carrier 2124, the first ring gear 2123 and three the first planetary gears 2122 engagements, the first planetary wheel carrier 2124 are also formed with the second sun gear 2128, and the number of the second planetary gear 2125 is 5, five Second planetary gear 2125 is engaged with the second sun gear 2128, and five the second planetary gears 2125 are also mounted respectively to the second planetary gear On frame 2127, the second ring gear 2126 is engaged with five the second planetary gears 2125, and the second planetary wheel carrier 2127 is also formed with being used for Power is exported to the output section 2129 of runner assembly.In this way, when motor 12 rotates, gear for two stage planetary gear train 212 is defeated by motor 12 The power gone out is transferred to runner assembly, and this gear for two stage planetary gear train 212 also has the function that to slow down, in other words, this two-stage row Star wheel series 212 have a maximum deceleration ratio, rotating speed and output section 2129 of the maximum deceleration than can be understood as motor shaft 121 Rotating speed ratio, in the present embodiment, gear-box 21 do not have speed governing function, therefore gear-box 21 have one it is non-adjustable The maximum deceleration ratio of section.Transition components 22 include：The first 221 and second eccentric wheel of eccentric wheel portion being arranged in lower chamber 1112 Portion 222, the first eccentric eccentric wheel portion 222 of wheel portion 221 and second can be rotated with electrical axis 101 for axis, the first eccentric wheel portion 221 are used to coordinate with the first blade 31, and the second eccentric wheel portion 222 is used to coordinate with the second blade 32, the first eccentric wheel and second Eccentric wheel portion 222 is each attached to the output section 2129 of the second planetary wheel carrier 2127, the first eccentric eccentric wheel portion of wheel portion 221 and second 222 center of circle is staggered, and the center of circle of the center of circle of the first eccentric wheel portion 221 and the second eccentric wheel portion 222 is at one parallel to longitudinal axis It is spaced a distance in the plane of line 102, which also is normal to electrical axis 101, and such second planetary wheel carrier 2127 drives The dynamic first eccentric eccentric wheel portion 222 of wheel portion 221 and second rotates, so that the first blade 31 and the second blade 32 are along longitudinal direction Axis produces relative motion on 102 direction.

Blade assembly 30 is used for realization cutting function.As shown in figures 1 and 3, the first blade 31 includes the first main part 311st, the first cutting teeth 312 and the first protection tooth 313.First main part 311 extends along 102 direction of longitudinal axis, the first cutting Tooth 312 from the first main part 311 transversely axis 105 be directed away from the first main part 311 direction extension, the axis of pitch 105 perpendicularly to the longitudinal axis 102.The number of first cutting teeth 312 is multiple, and multiple first cutting teeths 312 are along longitudinal axis It is arranged at equal intervals on 102 directions on the first main part 311, the first protection tooth 313 is used to avoid the leg of user, arm from stretching into Between to two adjacent the first cutting teeths 312.Wherein, blade assembly 30 has the firstth area along 102 direction of longitudinal axis Domain 303 and second area 304, wherein, the first blade 31 is equipped with the first protection tooth 313 at first area 303, can so keep away Exempt from the leg of user, arm is stretched between two adjacent the first cutting teeths 312, the first blade 31 does not have at second area 304 There is the protection tooth 313 of setting first, so enable to blade assembly 30 to pass through the form cut repeatedly thicker to cut off some Strong vegetation.

Specifically, transversely on 105 direction of axis, the side of the first main part 311 only sets the first cutting teeth 312, the opposite side of the first main part 311 sets the first protection tooth 313 in first area 303 and does not have in second area 304 There is setting first to keep tooth.Along along 102 direction of longitudinal axis, the first cutting teeth 312 is also located at two first adjacent protections Between tooth 313.

As shown in Figure 12 and Figure 13, the first cutting teeth 312 is formed respectively along the front and rear sides on 102 direction of longitudinal axis There are preceding cutting edge 3121 and rear cutting edge 3122.The preceding cutting edge 3121 of one the first cutting teeth 312 and positioned at first cutting Shrub, hedgerow is allowed to wait cut substrate at least formed with one between the front side of tooth 312 and another adjacent first cutting teeth 312 Part enters to effective cutting zone 3123 between the two first adjacent cutting teeths 312, effective cutting zone 3123 It is being L along the full-size on 102 direction of longitudinal axis.It should be understood that preceding cutting edge 3121 is transversely on 105 direction of axis With the root 3121a and the top 3121b opposite with root 3121a connected with the first main part 311, rear cutting edge 3122 exists Transversely have on 105 direction of axis and the root 3122a of the first main part 311 connection and the top opposite with root 3122a 3122b, effective cutting zone 3123 in fact that is to say that one first is cut along the full-size L on 102 direction of longitudinal axis Cut the top 3121b of the preceding cutting edge 3121 of tooth 312 with positioned at the front side of first cutting teeth 312 and adjacent another first The distance between top 3122b of rear cutting edge 3122 of cutting teeth 312.Effective cutting zone 3123 is along longitudinal axis 102 Full-size L on direction（Unit is millimeter）With the weight of pruner 100（Unit is kilogram）Ratio be more than or equal to 4.5 milli Rice/kilogram and be less than or equal to 6 millimeters/kilogram.Wherein, the weight of pruner 100 can be understood as including the whole of supply unit 13 Machine weight.Such as in the present embodiment, supply unit 13 includes battery pack 131, then the weight of pruner 100 can be understood as wrapping Include the weight of battery pack 131.And in other embodiments, such as shown in Figure 16, supply unit 51 is ac equipment, at this moment power supply Device 51 includes the plug 511 and cable 512 for being used to be connected to the AC power in the external world, and at this moment, the weight of pruner 500 can be with It is interpreted as the weight for including plug 511 and cable 512.On the other hand, along 102 direction of longitudinal axis, one first is cut The top 3121b of the preceding cutting edge 3121 of tooth 312 positioned at the front side of first cutting teeth 312 and adjacent another first with cutting Cut the distance between top 3122b of rear cutting edge 3122 of tooth 312（Unit is millimeter）Power supply dress is being removed with pruner 100 Weight when putting 13（Unit is kilogram）Ratio be more than or equal to 8 millimeters/kilogram and be less than or equal to 12 millimeters/kilogram.In this way, make It is also relatively lighter to obtain relatively lighter and pruner 100 the bare machine weight of weight of the complete machine of pruner 100, while blade assembly 30 has It is also bigger to imitate the size of cutting zone 3123, so that the main screw lift of pruner 100 is light and cutting power is strong, Jin Erneng Enough so that user can still cut more obstinate, sturdy vegetation using a kind of light-weight pruner 100.

As shown in figure 14, the first cutting teeth 312 is more than or equal to effectively cutting in the transversely length L1 on 105 direction of axis Maximum sized half of the region 3123 on 102 direction of longitudinal axis.Furthermore, as shown in Figure 13 and Figure 14, to have The full-size L for imitating cutting zone 3123 is the top that diameter draws a circle, the at this moment preceding cutting edge 3121 of the first cutting teeth 312 The top of 3121b and rear cutting edge 3122 positioned at another front side of first cutting teeth 312 and adjacent the first cutting teeth 312 Portion 3122b is on circle, and the other parts of the preceding cutting edge 3121 in addition to the 3121b of top are respectively positioned on round outside, should Other parts of the cutting edge 3122 in addition to the 3122b of top are also respectively positioned on round outside afterwards, so can ensure diameter substantially It can extend into for the vegetation at least half of L to effective coverage, so as to improve what the diameter substantially vegetation of L was disposably cut off Success rate, and then improve the cutting efficiency of pruner 100 and be also avoided that 12 stall of motor.

As is illustrated by figs. 11 and 12, the center of circle of the first eccentric wheel portion 221 and the center of circle of the second eccentric wheel portion 222 are flat at one Row is more than effective cutting zone 3123 in 102 side of longitudinal axis in the distance between the projection in the plane of longitudinal axis 102 L2 The half of upward full-size L.In this way, even if effective cutting zone 3123 of pruner 100 full-size L increase when, It can still ensure that the first cutting teeth 312 at least can be one inswept when the first blade 31 and the second blade 32 are in relative motion Complete effectively cutting zone 3123, and then improve the success rate for cutting off thing to be cut.

First protection tooth 313 has the edge more blunt than preceding cutting edge 3121 and rear cutting edge 3122, it is possible to understand that, the One protection tooth 313 is not provided with cutting edge.The number of first protection tooth 313 is multiple, and multiple first protection teeth 313 are first The side of main part 311 is sequentially arranged at intervals.

The structure of second blade 32 is identical with the structure of the first blade 31, the second blade 32 include with the first main part 311, First cutting teeth 312, second main part 321 identical with the first protection 313 structure of tooth, the second cutting teeth 322 and the second protection tooth 323, specifically repeat no more.

First protection tooth 313 includes sticking part 3131 and protrusion 3132, and sticking part 3131 is used for and the second cutting teeth 322 Fitting, protrusion 3132 are convex for the second cutting teeth 322 in the direction of axis of pitch 105.Wherein, effective cutting zone 3123 Full-size L on 102 direction of longitudinal axis（Unit is millimeter）With the transversely size on axial direction of protrusion 3132 （Unit is millimeter）Ratio be more than or equal to 2.5 and less than or equal to 3.3.In this way, when effective cutting zone 3123 of pruner 100 Full-size L increase when, first protection tooth 313 can still protect users from injuring.

Battery pack 131 is specifically as follows lithium battery pack, and battery pack 131 includes the battery core unit of multiple electric connections, battery core The number of unit determines the nominal voltage and power supply capacity of battery pack 131.Wherein, the preceding cutting edge of the first cutting teeth 312 The rear cutting edge 3122 of 3121 top 3121b and another the first cutting teeth 312 positioned at the front side of the first cutting teeth 312 The distance between top 3122b L（Unit is millimeter）The ratio of the number of the battery core unit included with battery pack 131 be more than etc. In 0.8 millimeter/and it is less than or equal to 1.1 millimeters/.In this way, when pruner 100 needs to trim more sturdy vegetation, electricity The power supply capacity of pond bag 131 disclosure satisfy that the demand of user.

As described above, gear-box 21 has a maximum deceleration ratio, effective cutting zone 3123 is in 102 direction of longitudinal axis On full-size L（Unit is millimeter）With the maximum deceleration than ratio be more than or equal to 1.9 and less than or equal to 2.4.In this way, through After crossing the deceleration of gear-box 21, the output torque of output section 2129 is sufficiently large, so as to meet that pruner 100 is thicker to some The demand of the trimming of strong vegetation.In addition, effectively full-size L of the cutting zone 3123 on 102 direction of longitudinal axis（Unit For millimeter）With the rated power of motor 12（Unit is kilowatt）Ratio be more than or equal to 40 millimeters/kilowatt and less than or equal to 60 milli Rice/kilowatt, and effectively full-size L of the cutting zone 3123 on 102 direction of longitudinal axis（Unit is millimeter）With motor 12 Diameter（Unit is millimeter）Ratio be more than or equal to 0.45 and less than or equal to 0.6, in this way, when pruner 100 cut it is thicker During strong vegetation, the rated power of motor 12 is sufficiently large, so as to improve the load capacity of pruner 100.

As shown in figure 5, pruner 100 further includes：Circuit board 15, heat sink 16 and fan 17, wherein, circuit board 15 and electricity Machine 12, which is formed, to be electrically connected, and heat sink 16 is used to radiate to circuit board 15, and fan 17 is used to produce radiating airflow.Circuit board 15th, heat sink 16 and fan 17 are also arranged in upper cavity 1111.Housing 11 is also formed with being respectively communicated with inside and outside housing 11 Air flow inlet 117 and air stream outlet 118, fan 17 can be produced from air flow inlet 117 and enter housing 11 and flow through motor when rotating 12 radiating airflow, so as to radiate to motor 12.

Operating assembly 40 specifically includes：First switch 41 and second switch 42, first switch 41 are installed to rear handle 113, Second switch 42 is installed to front handlebar 112.

First switch 41 forms the rotation connection with first axle 106 for axis with rear handle 113, and the first axle 106 is also Perpendicularly to the longitudinal axis 102, first switch 41 at least has deenergization device 13 when handle 113 rotates after be motor 12 The open position of power supply.In open position, first switch 41 includes part and exposes rear handle 113 for user first switch 41 First operation portion 411 of operation.Wherein, full-size L of effective cutting zone 3123 on longitudinal axial direction（Unit is milli Rice）With size L3 of first operation portion 411 on 102 direction of longitudinal axis（Unit is millimeter）With ratio be more than or equal to 0.3 And less than or equal to 0.4.In this way, when the pruner 100 can be used to cut more sturdy vegetation, pruner 100 will produce ratio Larger vibration, at this moment size of first operation portion 411 on 102 direction of longitudinal axis can long enough for user it is more stable Operation.

Second switch 42 and front handlebar 112 are formed and are slidably connected, second switch 42 include part expose front handlebar 112 for Second operation portion 421 of user's operation.

Pruner 100 further includes control device, when first switch 41 and second switch 42 are triggered by user, control dress Control motor 12 is put to start.

Wherein, full-size L of effective cutting zone 3123 on 102 direction of longitudinal axis（Unit is millimeter）With first The maximum angle that handle 113 can rotate after of switch 41（Unit is degree）Ratio be more than or equal to 7.5 millimeter/degree and less than etc. In 10 millimeter/degree.

Operating assembly 40 further includes：Safety switch 43, safety switch 43 are used to first switch 41 being locked in open position, Safety switch 43 is separately positioned on both sides of the rear handle 113 on the direction parallel to electrical axis 101 with first switch 41.Peace The setting of full switch 43 can effectively prevent user's false triggering first switch 41, improve security.

As shown in Fig. 2 and Figure 15, safety switch 43 forms the rotation connection with second axis 107 for axis with rear handle 113, Second axis 107 is also parallel to each other with first axle 106.Specifically, first switch 41 formed with lug boss 412 and is arranged on The escape groove 413 of 412 side of lug boss, safety switch 43 include being used for the supporting part 431 supported with lug boss 412, work as safety When switch 43 is not triggered by user, the supporting part 431 of safety switch 43 supports the lug boss 412 of first switch 41, at this moment, first The rotation of handle 113 after of switch 41 is locked, and user cannot trigger first switch 41；And when safety switch 43 is touched by user During hair, the supporting part 431 of safety switch 43 leaves lug boss 412 and stretches in escape groove 413, at this time, 41 phase of first switch Rotation to rear handle 113 is released, and user can trigger first switch 41.

As shown in Figure 5 and Figure 6, housing 11 is also formed with partition plate 119, which is separated into front cavity by accommodating chamber 111 1113 and rear chamber 1114.Motor 12, circuit board 15 and heat sink 16 are arranged in front cavity 1113, first switch 41 and Part of two switches 42 in accommodating chamber 111 is located in rear chamber 1114, and air flow inlet 117 and air stream outlet 118 are arranged on Side where the front cavity 1113 of partition plate 119, in this way, circulation path of the radiating airflow in housing 11 is located at front cavity 1113 It is interior, so that first switch 41 and second switch 42 are located at outside circulation path of the radiating airflow in housing 11, and then, heat transmission gas The dust being mingled with stream will not influence first switch 41 and second and open because first switch 41 and second switch 42 is adhered to Close 42 validity.

The utility model also proposes the pruner 500 of second embodiment as shown in figure 16, wherein, in first embodiment The part that pruner 100 and the present embodiment are adapted can be applied in the present embodiment, only introduce the present embodiment and the below The difference part of one embodiment.

The supply unit 51 of the pruner 500 of the present embodiment is ac equipment, and at this moment supply unit 51 includes being used to connect To the plug 511 and cable 512 of extraneous AC power.

The pruner 100 of the present embodiment can also include causing gear-box with least two for adjustment gear case Different speed reducing ratio regulating device 52, in this way, user can be cut as needed shrub, the difference of the vegetation such as hedgerow And different speed reducing ratio is set, so as to can also improve cutting power while cutting efficiency is improved.

Operating assembly 53 can also include switching device 534, which can be to install to the cunning on housing 54 Dynamic button, which can at least move to first position and the second place with respect to housing 54, at switching device 534 When first position, when first switch 531 and second switch are triggered by user, control device controls electric motor starting, at this moment uses Family can be controlled pruner 500 by way of handle 541 after both hands grip respectively and front handlebar 542；Work as switching device 534 when being in the second place, and control device disconnects control of the second switch to motor, at this moment, handle after user can only grip Hand 541 and only triggering first switch 531 can control pruner 500.Specifically, switching device 534 and first switch 531 The distance between also greater than equal to 30 millimeters and less than or equal to 60 millimeters, in this way, when user's handle 541 after gripping, user Hand can operate first switch 531 and switching device 534 at the same time.

The basic principle, main feature and advantage of the utility model has 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 The technical solution obtained, all falls within the scope of protection of the utility model.

Claims (10)

1. a kind of pruner, including：

Blade assembly, including the first blade and can the second knife for moving back and forth along the longitudinal axis of relatively described first blade Piece；

Motor, relative motion is produced for driving between second blade and first blade；

Transmission component, for realizing the transmission of power between the motor and the blade assembly；

Supply unit, for powering for the motor；

Housing, forms or is connected with rear handle and front handlebar for being gripped for user；

The blade assembly is including the first end that is connected with the housing along the longitudinal axis direction and with described first Opposite second end is held, the housing is symmetrical arranged on a symmetrical plane, and the rear handle and the motor are arranged on institute State the homonymy of front handlebar；

Wherein, the rear handle includes：

Grip part afterwards, grips for a hand for user；

Front handlebar includes：

Main grip part, for being gripped for another hand of the user when carrying out truncation；

Side grip part, for being gripped for another hand of the user when carrying out lateral incision；

Connecting portion, connects the side grip part and the housing；

It is characterized in that：

Wherein, it is straight to be projected as first on the symmetrical plane for the line of the main grip part and the second end of the blade assembly Line, the connecting portion and the line of the second end of the blade assembly are projected as second straight line on the symmetrical plane, described First straight line and the second straight line are crossed to form an angle, and the side that the angle opens wide surrounds and forms angle region, institute Projection of the center of gravity of pruner in the symmetrical plane is stated in the folder angular domain.

2. pruner according to claim 1, it is characterised in that：

Along along the longitudinal axis direction, the center of gravity of the pruner set grip part in the rear and the main grip part it Between.

3. pruner according to claim 1, it is characterised in that：

The motor includes：Can be using a motor shaft rotated perpendicular to the electrical axis of the longitudinal axis as axis；

Wherein, along the electrical axis direction, the center of gravity of the pruner is arranged on the main grip part and the connection Between portion；The side grip part connects the connecting portion and the main grip part.

4. pruner according to claim 1, it is characterised in that：

The motor includes：Can be using a motor shaft rotated perpendicular to the electrical axis of the longitudinal axis as axis；

Along along the electrical axis direction, the front handlebar has the minimum point farthest away from the main grip part；

Wherein, along the electrical axis direction, the blade assembly is arranged on the center of gravity of the pruner and preceding described Between the minimum point of hand.

5. pruner according to claim 1, it is characterised in that：

The motor includes：Can be using a motor shaft rotated perpendicular to the electrical axis of the longitudinal axis as axis；

Along along the electrical axis direction, the center of gravity of the side grip part and the pruner is arranged at the main grip part Between the connecting portion.

6. pruner according to claim 1, it is characterised in that：

The motor includes：Can be using a motor shaft rotated perpendicular to the electrical axis of the longitudinal axis as axis；

Along along the electrical axis direction, the connecting portion has the minimum point farthest away from the main grip part；

Wherein, along the electrical axis direction, the blade assembly be arranged on the front handlebar minimum point and it is described after Between grip part.

7. pruner according to claim 6, it is characterised in that：

The supply unit includes：

Battery pack, inserts to the housing along the direction parallel to the longitudinal axis；

Wherein, along the electrical axis direction, the center of gravity of the battery pack is arranged on minimum point and the institute of the front handlebar State between rear grip part.

8. pruner according to claim 1, it is characterised in that：

The motor includes：Can be using a motor shaft rotated perpendicular to the electrical axis of the longitudinal axis as axis；

Along along the electrical axis direction, the front handlebar has the preceding peak farthest away from the blade assembly, after described Handle has the rear peak farthest away from the blade assembly；

Wherein, along the electrical axis direction, the preceding peak is positioned at the rear peak and the weight of the pruner Between the heart.

9. pruner according to claim 1, it is characterised in that：

The angle that the first straight line and the second straight line are crossed to form is more than or equal to 15 degree and less than or equal to 22 degree.

10. pruner according to claim 1, it is characterised in that：

The pruner further includes：

Service cover, the housing is closed in the downside of the housing；

The motor further includes the motor shaft that can be rotated using an electrical axis as axis；

Wherein, along the electrical axis direction, the lower edge of the service cover aligns with the lower edge of the housing.