CN207269417U - Pruner - Google Patents

Abstract

The utility model discloses a kind of pruner, including：Blade assembly, motor, transmission device and housing, blade assembly include the first blade and the second blade；Motor includes the motor shaft that can be rotated using electrical axis as axis；Transmission device includes：Reduction assemblies, eccentric block component and device case, eccentric block component includes being used for the second eccentric part with the first eccentric part of the first blades fit and with the second blades fit, and device case includes surrounding the first chamber portion formed with the first chamber for accommodating reduction assemblies；Device case further includes the extension for the direction extension for being directed away from reduction assemblies, and extension is surrounded formed with the second chamber for accommodating eccentric block component jointly with housing；Housing is connected formed with the first pouring orifice and the second pouring orifice for injecting grease, the first pouring orifice with first chamber, and the second pouring orifice is connected with second chamber.The lubricity of transmission device in the pruner is more preferable.

Description

Pruner

Technical field

It the utility model is related to a kind 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 device 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.

The handle shapes of existing pruner are irregular, cause poor to the feel of user and operate not steady enough It is fixed.Furthermore when user needs to carry out maintenance the part inside pruner, the quantities of dismounting is big, and maintenance time is longer.Separately Outside, the grease in transmission device cannot cause each part to access effectively lubricating.

Utility model content

To solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of more preferable pruner of lubricity.

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

A kind of pruner, including：Blade assembly, motor, transmission device and housing, blade assembly include that opposite fortune can be produced Dynamic the first blade and the second blade, motor, which is used to drive, produces relative motion between the first blade and the second blade, transmission dress The transmission for realizing power between motor and blade assembly is put, housing is used to accommodate motor and transmission device；Motor includes The motor shaft that can be rotated using electrical axis as axis；Transmission device includes：Reduction assemblies, eccentric block component and device case, slow down Component includes being used for the first gear that the power of motor output is introduced to transmission device, and eccentric block component includes being used for and the first knife The first eccentric part that piece coordinates and the second eccentric part with the second blades fit, device case include surrounding formed with for accommodating The first chamber portion of the first chamber of reduction assemblies；Device case further includes the extension for the direction extension for being directed away from reduction assemblies Portion, extension are surrounded formed with the second chamber for accommodating eccentric block component jointly with housing；Housing is formed with for injecting The first pouring orifice and the second pouring orifice of grease, the first pouring orifice are connected with first chamber, and the second pouring orifice connects with second chamber It is logical.

Further, on the direction along electrical axis, the first pouring orifice and the second pouring orifice are separately positioned on device shell The both sides of body.

Further, pruner further includes：Oil fuel tube, note of the oil fuel tube formed with the first pouring orifice of connection and first chamber Oily passage.

Further, motor includes：The stator support of the through hole passed through formed with permission motor shaft；Stator support is connected to For device case close to one end of motor, stator support covers at least part first chamber close to one end of motor；Oil fuel tube connects It is integrally formed to stator support or with stator support, oiling passage runs through stator support.

Further, oil fuel tube is located at side of the stator support away from reduction assemblies.

Further, pruner further includes：First seal and second seal, first seal seal the first oiling Mouthful, second seal seals the second pouring orifice.

Further, first seal and second seal are that can removably be connected to the first pouring orifice and second respectively The bolt of pouring orifice.

Further, reduction assemblies include epicyclic train.

Further, pruner further includes：For controlling the circuit board of motor；Housing includes：Main part, upper cover and under Lid, main part for the main handle that user grips and the supporting part for being used to support circuit board, upper cover with supporting part formed with for enclosing Surrounded around formed with the upper chamber for accommodating motor, lower cover with supporting part formed with the lower chambers for accommodating transmission device； Wherein, circuit board is arranged in upper chamber.

Further, upper cover is connected with main part by fastener, and lower cover is connected with main part by fastener.

The utility model is beneficial in that：The lubricity of transmission device in the pruner of the utility model is more preferable.

Brief description of the drawings

Fig. 1 is the stereogram of the pruner of one embodiment of the utility model

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

Fig. 3 is that the pruner in Fig. 1 removes the enlarged drawing after blade assembly；

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

Fig. 5 is the rearview of the pruner in Fig. 1

Fig. 6 is schematic diagram of the pruner when carrying out truncation operation in Fig. 1；

Fig. 7 is schematic diagram of the pruner when carrying out lateral incision operation in Fig. 1；

Fig. 8 is plan of the pruner when trigger is in trigger position in Fig. 1；

Fig. 9 is the stereogram of the trigger in Fig. 8；

Figure 10 is stereogram of the pruner after upper cover, lower cover are opened in Fig. 1；

Figure 11 is the stereogram at another visual angle of structure shown in Figure 10；

Figure 12 is stereogram of the pruner when first seal is separated in Fig. 1；

Figure 13 is stereogram of the pruner when second seal is separated in Fig. 1；

Figure 14 is the stereogram of motor in Figure 10, transmission device, blade assembly and lower cover；

Figure 15 is profile of the structure shown in Figure 14 along Z-Z lines；

Figure 16 is the stereogram of motor in Figure 10, transmission device and blade assembly；

Figure 17 is the explosive view of structure shown in Figure 14；

Figure 18 is the explosive view of structure shown in Figure 16；

Figure 19 is the stereogram of the tool system of one embodiment；

Figure 20 is the stereogram of the tool system of another embodiment；

Figure 21 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 5, pruner 100 includes：Housing 10 and the set of blades being at least partially disposed in outside housing 10 Part 20.As shown in Figure 10 and Figure 11, pruner 100 further includes：Motor 51 and transmission device 30.Wherein, blade assembly 20 includes The first blade 21 and the second blade 22 of relative motion can be produced, the first blade 21 and the second blade 22 are along a longitudinal axis 101 directions extend.Motor 51 is used to drive the first blade 21 and the second blade 22 to produce relative motion, and motor 51 includes can be with electricity Arbor line 102 is the motor shaft 511 that axis rotates, and electrical axis 102 also mutually hang down with the longitudinal axis 101 of the first blade 21 extension Directly.Transmission device 30 is arranged in housing 10, and transmission device 30 is used to realize power between motor 51 and blade assembly 20 Transmit.

The technical solution of the utility model for convenience of explanation, also define upside as shown by the arrows in Figure 1, downside, Front side, rear side, left side and right side.

As shown in figure 3, in the longitudinal direction, housing 10 includes receiving portion 111, main handle 112 and connection receiving portion 111 With the connecting portion 113 of main handle 112.In addition, pruner 100 further includes auxiliary handle 52, auxiliary handle 52 can be with receiving portion 111 compositions are fixedly connected or are detachably connected or are integrally formed.

Receiving portion 111 is used to form the accommodating chamber 111a for accommodating motor 51, and main handle 112 is used to grip for user, main Hand 112 includes the grip part 112a extended substantially along 103 direction of first straight line.Trigger 53 is additionally provided with main handle 112, this Sample, energy while operating trigger 53 when user grips main handle 112, so that motor 51 starts.

Trigger 53 is additionally included in user and grips the contact surface 531 contacted during main handle 112 with the hand of user, contact surface 531 Expose main handle 112.Trigger 53 forms with main handle 112 and is slidably connected or is rotatablely connected, in the present embodiment, with trigger 53 Formed with main handle 112 exemplified by being rotatablely connected.With as shown in Figure 1 not by user when the relatively main handle 112 of trigger 53 moves The initial position of triggering and the relative initial position that triggered by user as shown in Figure 8 slided ultimate range or rotated maximum Angle is to start the trigger position of motor 51.When trigger 53 is in initial position, motor 51 is in shutdown status, pruner 100 do not work；And when trigger 53 is located at trigger position, motor 51 brings into operation, and pruner 100 can be trimmed Vegetation.Wherein, as shown in Figure 8 and Figure 9, when trigger 53 is in trigger position, the outer surface of contact surface 531 and grip part 112a To being connected in the substantially circular entirety in the section in the plane perpendicular to first straight line 103.Used thus it is possible, on the one hand, working as When family carries out truncation operation or lateral incision as shown in Figure 7 operation as shown in Figure 6 using the pruner 100, grip part 112a It is in the form of a column substantially with the trigger 53 positioned at trigger position, the feel that at this moment user's gripping is got up is relatively good, and operate comparison side Just；On the other hand, we be frequently necessary to during carrying out trimming vegetation truncation operation and lateral incision operation between with Meaning switching, in this way, because the contact surface 531 of grip part 112a and trigger 53 forms a columnar entirety, such user grips The hand of main handle 112 easily turns over 90 degree in the case of the main handle 112 of endless total detachment, so that operation becomes more Add smooth.In this way, user need not remove the hand for gripping main handle 112 completely reselects a proper position again Grip to realize the switching of truncation operation and lateral incision operation.

In the present embodiment, as shown in Figure 1, Figure 2 with shown in Fig. 9, trigger 53 is formed with main handle 112 and is rotatablely connected, trigger 53 The axis 104 rotated relative to main handle 112 is also mutually perpendicular to first straight line 103.Also set up between trigger 53 and housing 10 There is biased element 54, which is specifically as follows helical spring, and what which was compressed is arranged on 10 He of housing Between trigger 53, moved so that biased element 54 can bias trigger 53 towards initial position, so that trigger 53 exists Initial position can be reset to when not being user-operably.The contact surface 531 of trigger 53 is for one with parallel to first straight line 103 The arc surface of line centered on straight line.Grip part 112a is the cylinder of the line centered on first straight line 103, and the surface of cylinder is opened Equipped with a window 112b, trigger 53 is arranged at window 112b, and contact surface 531 exposes at window 112b.When trigger 53 During in trigger position, the substantially closed window 112b of contact surface 531 so as to the outer surface of grip part 112a be butted into one it is complete Whole cylinder.In the present embodiment, size of the contact surface 531 on the circular direction that it is formed with grip part 112a is with being somebody's turn to do The ratio of circular girth is more than or equal to 1:4 and less than or equal to 1:3, so so that the width in the lateral direction of contact surface 531 Spend sufficiently large, so that the contact surface 531 of the hand of user and trigger 53 accumulates bigger, so that operation is easier, feel is more It is good.In addition, the circular girth that is docked with the outer surface of grip part 112a of contact surface 531 be more than or equal to 90mm and less than etc. In 120mm, so so that the overall moderate dimensions that whole main handle 112 is formed with trigger 53, avoid because of main handle 112 it is excessively thick or meticulous caused by user grip discomfort.

Auxiliary handle 52 is used to grip for the another hand of user, and auxiliary handle 52 includes：Main grip part 521 and side grip Portion 522, main grip part 521 are used to grip for another hand of the user when carrying out truncation operation, side grip part 522 for for Another hand of the family when carrying out lateral incision operation grips.As shown in Figure 1 and Figure 5, in the plane of one perpendicularly to the longitudinal axis 101 Interior, auxiliary handle 52 is surrounded formed with a region A opened wide downwards in the projection of the plane, wherein, main handle 112 is flat at this Projection in face is located in the A of the region.Housing 10 is being less than auxiliary handle 52 in electricity along the peak on 102 direction of electrical axis Peak on 102 direction of arbor line, distance L1 is also further between the peak of housing 10 and the peak of auxiliary handle 52 Be more than or equal to and 30mm and be less than or equal to 50mm, furthermore, projection of the housing 10 in the plane be located in the A of the region or Person is located at the downside of region A.So so that the size of pruner 100 is smaller, highly relatively low, so that complete machine Center of gravity G is low, and then can improve the stability of user's operation.

As shown in Figure 1 and Figure 4, pruner 100 further includes safety switch 55, and safety switch 55 forms the company of slip with housing 10 Connect, safety switch 55 at least has locked when being moved with respect to housing 10, when safety switch 55 is positioned at locking During position, trigger 53 can be locked in initial position by safety switch 55, so as to avoid due to imprudence and maloperation is pulled Machine 53, and then avoid injury caused by the accidental activation of pruner 100；And when safety switch 55 is located at unlocked position, trigger 53 are released relative to the rotation of housing 10, and trigger 53 can be transported with respect to housing 10 between initial position and trigger position at this time It is dynamic.Specifically, safety switch 55 is arranged on connecting portion 113, safety switch 55 be located at main handle 112 and auxiliary handle 52 it Between.

Pruner 100 further includes：Plant-grid connection interface 56, plant-grid connection interface 56 are used to access power supply to supply for motor 51 Electricity.Housing 10 is also formed with the downside of the 112a of grip part for being passed through for the hand portion of user to grip the hole of main handle 112 114, plant-grid connection interface 56 is arranged on the downside in hole 114.

Plant-grid connection interface 56 specifically includes：Interface hull 561 and electrode slice 562, wherein, interface hull 561 surrounds shape Into there is an interface slot 561a, interface slot 561a has the notch 561c to 10 external open of housing, furthermore, notch 561c to After open wide.Electrode slice 562 is arranged in interface slot 561a, the number at least two of electrode slice 562.

Wherein, notch 561c has orthogonal short transverse and short transverse, in the present embodiment, notch 561c's Short transverse parallel to 102 direction of electrical axis, width perpendicular to electrical axis 102 width, notch 561c's Width also is normal to longitudinal axis 101.Wherein, the size L2 of notch 561c in the direction of the width are also greater than notch 561c and exist Size L3 in short transverse.So so that notch 561c is along the less flat position of size on 102 direction of electrical axis Groove, so that the height of pruner 100 in the up-down direction is relatively low, advantageously reduces the center of gravity G of complete machine.Wherein, notch 561c is opened wide backward not only facilitates user to access extraneous power supply, so that the power supply of access will not cause pruner 100 Become uneven.It will of course be understood that, in other embodiments, the width of notch 561c can not also motor vertical 102 direction of axis, the objective of the utility model are that pruner includes a plant-grid connection interface with flat position notch 561c 56, but preferably, in order to enable pruner 100 is as small as possible along the size on 102 direction of electrical axis, preferably So that the width of notch 561c is perpendicular to electrical axis 102 and perpendicularly to the longitudinal axis 101.

Specifically, the notch 561c of interface slot 561a exists along the size L3 on 102 direction of electrical axis and housing 10 It is more than or equal to 1 along the ratio of the size L4 on 102 direction of electrical axis:4.5 and less than or equal to 1:6, and the groove of interface slot 561a Mouthful 561c is in the size L3 along on 102 direction of electrical axis and auxiliary handle 52 along the size L5 on 102 direction of electrical axis Ratio be more than 1:6 are equal to and less than or equal to 1:7.5.So so that the notch 561c of interface slot 561a exists with respect to housing 10 It is reasonable to be set along the size on 102 direction of electrical axis, is conducive to the miniaturization of pruner 100 and is conducive to further reduce The center of gravity G of pruner 100.More specifically, in the present embodiment, blade assembly 20 has away from shell along longitudinal axis 101 The distal end 201 of body 10 and the near-end 202 close to housing 10, wherein, the distal end 201 of blade assembly 20, the center of gravity G of pruner 100 And main 112 three's basic setup of handle is point-blank, so so that the center of gravity G of pruner 100 is along motor shaft 511 It is reasonable to be set on axis direction, so as to avoid pruner 100 from operating the overweight middle stability turned on one's side, improve operation.

As shown in figure 5, the notch 561c of interface slot 561a is square in the section of the plane in 101 direction perpendicularly to the longitudinal axis Shape, certainly, size of the rectangle on 102 direction of electrical axis are less than it and perpendicular to electrical axis 102 and are being transversely to the machine direction Size on 101 direction of axis, in other words, the size of rectangle in the height direction are less than its size in the direction of the width.

A kind of tool system 800 of embodiment as shown in figure 19, it includes pruner 100 in Fig. 1 and for repairing The supply unit 810 that branch machine 100 is powered, the supply unit 810 include：Power output interface 811, battery pack 812 and power supply Line 813.Power output interface 811 can be inserted into the interface slot 561a of plant-grid connection interface 56, and battery pack 812 is used to store electricity Can, power cord 813 is electrically connected power output interface 811 and battery pack 812.Power output interface 811 and plant-grid connection interface 56 form mechanically connect and be electrically connected, the electric energy so as to which battery pack 812 is stored be input in pruner 100 with for Motor 51 is powered.

The tool system 900 of another embodiment as shown in figure 20, it includes pruner 100 in Fig. 1 and for repairing The supply unit 910 that branch machine 100 is powered, the supply unit 910 include：Power output interface 911, plug 912 and power cord 913, wherein, power output interface 911 can be inserted into the interface slot 561a of plant-grid connection interface 56.Plug 912 is used to connect Commercial power socket, power cord 913 are electrically connected power output interface 911 and plug 912.Power output interface 911 and plant-grid connection Interface 56, which is formed, to be mechanically connected and is electrically connected, so as to which alternating current is input in pruner 100 to power for motor 51.

In interface slot 561a, plant-grid connection interface 56 is also formed with guide part 561b, guide part 561b directed outwards Power output interface 811,911 105 is inserted into interface slot 561a, the width of the first direction 105 also with notch 561c in the first direction Plane determined by degree direction and short transverse is mutually perpendicular to, and power output interface 811,911 is inserted into the first of interface slot 561a Direction 105 is also parallel with longitudinal axis 101.In the present embodiment, guide part 561b is the inner wall of interface hull 561.At it In its embodiment, the first direction 105 that power output interface 811,911 is inserted into interface slot 561a can also be with longitudinal axis 101 Tilt intersecting.

As shown in Figure 10 and Figure 11, housing 10 includes detachable main part 11, upper cover 12 and lower cover 13, wherein, main body Portion 11 forms the foregoing main handle 112 for being used to grip for user, and upper cover 12 and lower cover 13 pass through screw and master respectively Body portion 11 connects.Pruner 100 further includes：Circuit board 57 and heat sink 58, circuit board 57 are connected with motor 51 to control motor 51, heat sink 58 is used to radiate to circuit board 57.Main part 11 further includes the support for being used to support circuit board 57 and heat sink 58 Portion 11a, circuit board 57 and heat sink 58 are assembled into a box 59, and box 59 is placed on the upside of supporting part 11a, from And cause supporting part 11a forms circuit board 57 to support.

Upper cover 12 is arranged on the upside of main part 11, and upper cover 12 is surrounded formed with upper chamber 121, electricity jointly with main part 11 Machine 51, circuit board 57 and heat sink 58 are contained in upper chamber 121.Lower cover 13 is arranged on the downside of main part 11, lower cover 13 Surround with main part 11 and be arranged on formed with lower chambers 131, transmission device 30 in lower chambers 131 jointly.In this way, when motor 51, In circuit board 57 and heat sink 58 any one damage when, user needs only to open upper cover 12, you can with to epicoele Part in room 121 carries out maintenance, so as to improve the convenience of maintenance.Likewise, when transmission device 30 damages, user is also only Only need to open lower cover 13 and the part in lower chambers 131 can be carried out maintenance, so as to further improve the convenient of maintenance Property.

As shown in Figure 10 to Figure 18, transmission device 30 includes：Reduction assemblies 31, eccentric block component 32 and device case 33, reduction assemblies 31 are used to reduce the rotating speed that motor 51 is transferred to eccentric block component 32, and eccentric block component 32 is used for group of slowing down The opposite reciprocating motion being converted between the first blade 21 and the second blade 22 that part 31 exports, device case 33 are used for Accommodate at least part reduction assemblies 31 and eccentric block component 32.

Specifically, device case 33 includes surrounding the first chamber portion 331 formed with first chamber 331a, and motor 51 wraps Stator support 512 is included, stator support 512 is used to support motor 51, and stator support 512 is also formed with allowing motor shaft 511 to pass through Through hole 512a.Stator support 512 be connected to one end of the close motor 51 in the first chamber portion 331 of device case 33 so that First chamber 331a is partly capped close to the side of motor 51.Device case 33 is further included to 331 direction of first chamber portion The lower cover 13 of the extension 332 that direction away from reduction assemblies 31 extends, extension 332 and housing 10 surrounds jointly forms second Chamber 332a, second chamber 332a are connected with first chamber 331a, and eccentric block component 32 is arranged in second chamber 332a, when with When lower cover 13 is opened at family, second chamber 332a is opened wide, and at this moment user can repair or replace eccentric block component 32.

Housing 10 is also formed with the first pouring orifice 122 and the second pouring orifice 132 for injecting grease, first pouring orifice 122 connect with first chamber 331a, and the second pouring orifice 132 is connected with second chamber 332a, in this way, user can be respectively from deceleration The overall injection of the both sides up and down grease that component 31 and eccentric block component 32 are formed, so as to improve the profit of transmission device 30 Slip energy, and then extend the service life of pruner 100.

On the direction along electrical axis 102, the first pouring orifice 122 and the second pouring orifice 132 are separately positioned on device shell The both sides of body 33, specifically, the first pouring orifice 122 are arranged in the upper cover 12 of housing 10, and the second pouring orifice 132 is arranged on shell On the lower cover 13 of body 10.Wherein, because second chamber 332a is surrounded and formed by extension 332 and lower cover 13, therefore, the Two pouring orifices 132 can directly be connected through lower cover 13 with second chamber 332a, so that grease can pass through the second pouring orifice 132 Second chamber 332a directly is poured into, and then the eccentric block component 32 being pointed in second chamber 332a is lubricated.And upper cover 12 Also there are a certain distance between first chamber 331a, therefore, pruner 100 further includes oil fuel tube 512b, oil fuel tube 512b Formed with oiling passage 512c, oiling passage 512c connects the first pouring orifice 122 and first chamber 331a, in this way, when user to When grease is inputted at the first pouring orifice 122, grease will be flowed into first chamber 331a by oiling passage 512c, so that right The reduction assemblies 31 being arranged in first chamber 331a are lubricated.

Oil fuel tube 512b is formed by stator support 512 and is located at side of the stator support 512 away from reduction assemblies 31, namely It is to say, oil fuel tube 512b is located at the upside of stator support 512.Oiling passage 512c through stator support 512 with first chamber 331a is connected.It will be understood, in other embodiments, oil fuel tube 512b can also be independently formed, and be then fixed to again Stator support 512.

In order to avoid grease leaks, pruner 100 further includes：First seal 123 and second seal 133, first is close Sealing 123 seals the first pouring orifice 122, and second seal 133 seals the second pouring orifice 132.Specifically, first seal 123 be the bolt for being removably connected to the first pouring orifice 122, and second seal 133 is also removably to be connected to the second note The bolt of hydraulic fluid port 132.

As shown in Figure 15 and Figure 17, reduction assemblies 31 include epicyclic train 311, in the present embodiment, reduction assemblies 31 It is 311 to specifically include two-stage planet, this two-stage planet is 311 including for exporting power to eccentric block component 32 Drive shaft 311a, the power that epicyclic train 311 is further included for motor 51 to be exported introduce the first gear of transmission device 30 311c。

Eccentric block component 32 includes：Eccentric block 321, clutch shaft bearing 322 and second bearing 323, eccentric block 321 are included along electricity The the first eccentric part 321a and the second eccentric part 321b that 102 direction of arbor line is set gradually, eccentric block 321 are included along electrical axis 102 directions sequentially pass through the first eccentric part 321a and the eccentric orfice 321c with the second eccentric part 321b, and drive shaft 311a is through partially Heart hole 321c, drive shaft 311a include forming and passing with eccentric block 321 by portion 311b, drive shaft 311a through eccentric orfice 321c It is dynamic to coordinate.Clutch shaft bearing 322 is sleeved on the periphery of the first eccentric part 321a, and second bearing 323 is sleeved on the second eccentric part 321b Periphery.In order to coordinate with eccentric block 321, the first blade 21 includes the first blade part 211 and first connecting portion 212, the second knife Piece 22 includes the second blade part 221 and second connecting portion 222.First blade part 211 is formed with multiple first blade 211a, and first Connecting portion 212 connects the first blade part 211 and transmission device 30, and the second blade part 221 is formed with multiple second blade 221a, and the Two connecting portions 222 connect the second blade part 221 and transmission device 30.Clutch shaft bearing 322 includes being sleeved on the first eccentric part 321a Periphery and the first inner ring 322a contacted with the first eccentric part 321a, further include the first outer ring contacted with first connecting portion 212 322b, formed with the first waist-shaped hole 212a, clutch shaft bearing 322 is arranged in the first waist-shaped hole 212a first connecting portion 212.Second Bearing 323 includes being sleeved on the second eccentric part 321b peripheries and the second inner ring 323a contacted with the second eccentric part 321b, also wraps The the second outer ring 323b contacted with second connecting portion 222 is included, second connecting portion 222 is formed with the second waist-shaped hole 222a, the second axis 323 are held to be arranged in the second waist-shaped hole 222a.In this way, when drive shaft 311a driving eccentric blocks 321 rotate, 321 energy of eccentric block The first blade 21 and the second blade 22 is driven to produce opposite reciprocating motion.Because in the first eccentric part 321a and first connecting portion Clutch shaft bearing 322 is set between 212, and second bearing 323 is set between the second eccentric part 321b and second connecting portion 222, So as to mitigate or reduce the abrasion between the first blade 21, the second blade 22 and eccentric block 321, and then improve pruner 100 Service life.

Pruner 100 further include be sleeved on drive shaft 311a by the 3rd bearing 34 on portion 311b.3rd bearing 34 Including：3rd inner ring 341 and the 3rd outer ring 342, the 3rd inner ring 341 with by portion's 311b clearance fits, the 3rd outer ring 342 is with Lid 13 is fixedly connected.Specifically, lower cover 13 can be disassembled from housing 10, lower side seal of the lower cover 13 in accommodating chamber 111a Accommodating chamber 111a is closed, lower cover 13 is also formed with container 134, and 34 interference of 3rd bearing is arranged in container 134.In this way, work as When user disassembles lower cover 13 from housing 10,3rd bearing 34 will be with lower cover 13 and be removed in the lump, at this moment eccentric Block assembly 32 will expose, and at this moment user can dismantle down eccentric block 321, clutch shaft bearing 322 and second bearing 323 Come, so as to improve the convenience that user dismantles eccentric block 321.

Gasket 35 and shrapnel 36 are additionally provided between 3rd bearing 34 and eccentric block 321, gasket 35 is arranged on shrapnel 36 Between eccentric block 321, shrapnel 36 is arranged between 3rd bearing 34 and gasket 35, and when assembling can cause the bias of shrapnel 36 the Three bearings 34 and gasket 35, can so to be fitted close between each part.

For blade assembly 20,212 and first blade part 211 of first connecting portion can be formed respectively, and second connects 222 and second blade part 221 of socket part can also be formed respectively, in this way, during fabrication, first connecting portion 212 and second connecting portion 222 can be made of the first material, and the first blade part 211 and the second blade part 221 can be made of the second material, and first Material and the second material can differ, such as say, the first material is harder with respect to the material of the second material, in this way, can improve The service life of blade assembly 20.Furthermore, along direction of the edge parallel to electrical axis 102, first connecting portion 212 The thickness of the first blade part of thickness ratio 211 is thicker, and the thickness of the second blade part of thickness ratio 221 of second connecting portion 222 is thicker, from And it can further improve the service life of blade assembly 20.Specifically, 212 and first blade part 211 of first connecting portion One entirety is connected as using the first connector 213,222 and second blade part 221 of second connecting portion uses the second connector 223 An entirety is connected as, the first connector 213 and the second connector 223 can be rivet, so that 212 He of first connecting portion First blade part 211 rivets, and 222 and second blade part 221 of second connecting portion rivets.

As shown in figure 16, guide part 23 is further included in blade assembly 20, guide part 23 includes：For being oriented to the first blade 21 The collimation portion 231 moved with the second blade 22 along 103 direction of first straight line, collimation portion 231 is along the side parallel to electrical axis 102 To through the hole of the first blade part 211 and the formation of the second blade part 221.Guide part 23 is also respectively at blade assembly 20 and housing 10 Contact, so that the grease leakage that guide part 23 can also be in backstop housing 10.

As shown in figure 21, the utility model also proposes the pruner 600 of second embodiment.The pruner of first embodiment 100 can be applied in the present embodiment with the part that the present embodiment is adapted.The pruner 600 and first of the present embodiment is implemented The pruner of example differs only in：The grip part 61 of pruner 600 in the present embodiment extends along the first curve 601.

When grip part 61 extends along 601 direction of the first curve, likewise, contact surface 621 and the outer surface of grip part 61 Essentially justify to being connected in a section in a normal plane in 601 direction of the first curve when trigger 62 is in trigger position The entirety of shape.

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 the second blade of relative motion can be produced；

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

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

Housing, for accommodating the motor and the transmission device；

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

It is characterized in that：

The transmission device includes：

Reduction assemblies, including the power for the motor to be exported introduce the first gear of the transmission device；

Eccentric block component, including for the first eccentric part with first blades fit and with second blades fit Two eccentric parts；

Device case, including around the first chamber portion formed with the first chamber for accommodating the reduction assemblies；

Described device housing further include is directed away from the reduction assemblies direction extension extension, the extension with it is described Housing is surrounded formed with the second chamber for accommodating the eccentric block component jointly；

The housing is formed with the first pouring orifice and the second pouring orifice for injecting grease, first pouring orifice and described the One chamber, second pouring orifice are connected with the second chamber.

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

On the direction along the electrical axis, first pouring orifice and second pouring orifice are separately positioned on described device The both sides of housing.

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

The pruner further includes：

Oil fuel tube, formed with the oiling passage for connecting first pouring orifice and the first chamber.

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

The motor includes：

Stator support, formed with the through hole for allowing the motor shaft to pass through；

The stator support is connected to described device housing close to one end of the motor, and the stator support covering is at least partly The first chamber is close to one end of the motor；

The oil fuel tube is connected to the stator support or is integrally formed with the stator support, and the oiling passage runs through institute State stator support.

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

The oil fuel tube is located at side of the stator support away from the reduction assemblies.

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

The pruner further includes：

First seal, seals first pouring orifice；

Second seal, seals second pouring orifice.

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

The first seal and the second seal are that can removably be connected to first pouring orifice and second respectively The bolt of pouring orifice.

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

The reduction assemblies include epicyclic train.

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

The pruner further includes：

Circuit board, for controlling the motor；

The housing includes：

Main part, formed with for the main handle gripped for user and the supporting part for being used to support the circuit board；

Upper cover, surrounds formed with the upper chamber for accommodating the motor with the supporting part；

Lower cover, surrounds formed with the lower chambers for accommodating the transmission device with the supporting part；

Wherein, the circuit board is arranged in the upper chamber.

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

The upper cover is connected with the main part by fastener, and the lower cover is connected with the main part by fastener.