CN108340015A - Hand-held power tool - Google Patents

Abstract

The invention discloses a hand-held power tool, comprising: the power tool comprises a shell, an output piece, a prime motor and a hook assembly, wherein the output piece is used for outputting power, the prime motor is arranged in the shell, and the hook assembly is used for hanging the handheld power tool; the hook component comprises: the hook component comprises a connecting piece and a hook piece, wherein the connecting piece is used for connecting the hook component to the shell, and the hook piece comprises a hook part and a handle part which can rotate relative to the connecting piece by taking a first axis as a shaft; wherein the connecting member is movable relative to the housing between at least a first position and a second position; after the connecting piece moves from the first position to the second position, the connecting piece generates rotation relative to the connecting piece and the rotation axis of the connecting piece generates rotation relative to the connecting piece generates displacement. The hook assembly is reasonable in structure and position arrangement, and cannot interfere with a hand of a user holding the hand-held power tool.

Description

Hand-hold power tool

Technical field

The present invention relates to a kind of hand-hold power tool, especially a kind of saw class tool.

Background technology

Electric circular saw is a kind of tool by driving saw blade progress sawing action, has safe and reliable, reasonable for structure, work The features such as efficient.Electric circular saw generally includes：Shell, motor, bottom plate, angle adjusting mechanism, depth adjustment structure and guiding Device.

When using electric circular saw, user is frequently necessary to carry out operation in high-altitude, it is therefore desirable to hang up electric circular saw, be This, electric circular saw can also include the hook for suspension.But the position of existing hook and structure setting are unreasonable, usually Meeting causes to interfere to the hand of the user's operation electric circular saw, to influence the use of user.

Motor is arranged in shell, the phenomenon that radiating airflow flows back is will appear at motor, to cause the Wen Sheng of motor Effect is poor.

Angle adjusting mechanism is arranged on bottom plate, is for adjusting the angle of inclination that saw blade is cut for user.But It is user when adjusting angle of inclination, it is generally difficult to fast and accurately realize the setting at angle of inclination.

Depth adjusting mechanism is used to adjust the depth of cut of saw blade for user, but existing depth adjusting mechanism is often Occur swinging and causing the error of graduation indication.

Guider is for guiding saw blade to realize that straight cuts, existing guider can mostly just realize short distance Straight cuts.

In addition, existing electric circular saw is usually installed saw blade to host by screw, in this way when needing to dismount saw blade, It needs using auxiliary devices such as screwdrivers, to be unfavorable for the operation of user.

Invention content

To solve the deficiencies in the prior art, the purpose of the present invention is to provide a kind of user-friendly hand-hold type powers Tool.

In order to realize that above-mentioned target, the present invention adopt the following technical scheme that：

A kind of hand-hold power tool, including：Shell, output, prime mover and hanging hook assembly, output are used to export power, Prime mover is arranged in shell, and hanging hook assembly is for hanging hand-hold power tool；Hanging hook assembly includes：Connector and hook Part, connector is for making hanging hook assembly be connected to shell, and hook member includes hook portion and energy opposite joints are with first axle The dynamic shank of shaft rotation；Wherein, connector can at least move between the first position and the second position with respect to shell；Connector by After first position moves to the second position, connector with respect to itself produce rotation and connector with respect to itself generate rotation from Shaft axis also produces displacement.

Further, shell is formed with an arc groove, connector include can in arc groove the arcuately extending direction of slot It is moved to the moving portion for making connector be located at first position and the second position.

Further, arc groove is arc-shaped slot, the central axis corresponding to the arc-shaped cell wall of arc groove in First axle.

Further, connector further includes the blocking portion for preventing moving portion from being detached from arc groove, blocking portion and moving portion Composition is detachably connected.

Further, connector with respect to itself generate rotation rotation axis perpendicular to first axle.

Further, shell is also formed with：Main handle portion, secondary handle portion and interconnecting piece, main handle portion are used for for user's One hand is held, and secondary handle portion is used to hold for the another hand of user, and interconnecting piece is for connecting main handle portion and secondary handle portion； Hanging hook assembly is set on interconnecting piece and between main handle portion and secondary handle portion.

Further, hand-hold power tool is the saw class tool that a saw blade can be driven to rotate.

Further, first axle is perpendicular to the pivot center of saw blade, the axis of rotation of the connector with respect to itself generation rotation Line is parallel to the pivot center of saw blade.

A kind of hand-hold power tool, including：Including：Shell, output, prime mover and hanging hook assembly, output are used for Power is exported, prime mover is arranged in shell, and hanging hook assembly is for hanging hand-hold power tool；Hanging hook assembly includes：Connection Part and hook member, connector for making hanging hook assembly be connected to shell, hook member include hook portion and can opposite joints with the One axis is the shank that shaft rotation is moved；Wherein, connector and shell constitute with one with first axle not in the same plane second Axis is the rotation connection of axis.

Further, connector with respect to the second axis of housing into rotation perpendicular to first axle.

Further, shell is also formed with：Main handle portion, secondary handle portion and interconnecting piece, main handle portion are used for for user's One hand is held, and secondary handle portion is used to hold for the another hand of user, and interconnecting piece is for connecting main handle portion and secondary handle portion； Hanging hook assembly is set on interconnecting piece and between main handle portion and secondary handle portion.

Further, hand-hold power tool is the saw class tool that a saw blade can be driven to rotate.

The invention has the beneficial effects that：The structure of hanging hook assembly and position setting are reasonable, and will not be held to user should The hand of hand-hold power tool causes to interfere.

Description of the drawings

Fig. 1 is the stereogram of the electric circular saw as one embodiment；

Fig. 2 is the plan view of the electric circular saw in Fig. 1；

Fig. 3 is the sectional view of the electric circular saw in Fig. 1；

Fig. 4 is the sectional view of partial shell in Fig. 1, motor and fan；

Fig. 5 is the stereogram of the stop part in Fig. 4；

Fig. 6 is the signal of circular portion in Fig. 4 and stop part in a projection in the plane of the pivot center of rotor Figure；

Fig. 7 be circular portion in Fig. 4, rotor and stop part sectional view；

Fig. 8 is the stereogram of the partial shell and hanging hook assembly in Fig. 1, and wherein connector is located at first position；

Fig. 9 is the plan view of structure shown in Fig. 8；

Figure 10 is the stereogram of the hanging hook assembly in Fig. 8；

Figure 11 is the stereogram of the partial shell and hanging hook assembly in Fig. 1, and wherein connector is located at the second position；

Figure 12 is the plan view of structure shown in Figure 11；

Figure 13 is the stereogram of the partial shell and hanging hook assembly in Fig. 1, and wherein hook member opposite joints turn over 90 degree；

Figure 14 is the part explosive view of the hanging hook assembly in Fig. 8；

Figure 15 is the stereogram of the bottom plate and angle adjusting mechanism in Fig. 1；

Figure 16 is the stereogram of another angle of the bottom plate and angle adjusting mechanism in Fig. 1；

Figure 17 is the explosive view of structure shown in Figure 15；

Figure 18 is the explosive view of another angle of structure shown in Figure 15

Figure 19 is the stereogram when electric circular saw in Fig. 1 is adapted to guide rail；

Figure 20 is the stereogram of the bottom plate and guider in Figure 19；

Figure 21 to Figure 25 is the plan view of the electric circular saw in Fig. 1, they show that guider is moved to from the second binding site The process of first binding site；

Figure 26 is the stereogram of bottom plate in Fig. 1, shield and depth adjusting mechanism；

Figure 27 is the plan view of structure shown in Figure 26；

Figure 28 is the part explosive view of structure shown in Figure 26；

Figure 29 is the part explosive view of another angle of structure shown in Figure 26；

Figure 30 shows and is swung caused by depth holder when depth holder is only oriented to by slide bar；

Figure 31 shows and is swung caused by depth holder when depth holder is oriented to by lug boss；

Figure 32 is the plan view of the working accessory and clamp device in Fig. 1；

Figure 33 is the stereogram of the clamp device in Figure 32；

Figure 34 is the explosive view of the clamp device in Figure 33；

Figure 35 is the explosive view of another angle of the clamp device in Figure 33.

Specific implementation mode

Power tool as shown in Figure 1 to Figure 3 is a kind of power tool of hand-held, specially a kind of electronic cutter Tool, the cutting tool are further a kind of electric saw, and more specifically, which can be electric circular saw 100.

As depicted in figs. 1 and 2, which includes：Tool host 10, bottom plate 20, angle adjusting mechanism 30, depth Regulating mechanism 40, guider 50 and hanging hook assembly 60.

Technical scheme of the present invention for convenience of explanation also defines upside as shown in Figure 1, downside, front side, rear side, a left side Side and right side.

As shown in Figure 1 to Figure 3, tool host 10 includes：Shell 11, motor 12, fan 13, working accessory 14 and driving Axis 15.

Shell 11 is for accommodating the structures such as motor 12, fan 13 and drive shaft 15.Original of the motor 12 as electric circular saw 100 Motivation is used to export power and drives working accessory 14, and motor 12 includes the motor shaft that can be moved for shaft rotation with electrical axis 101 121.Fan 13 can be rotated synchronously with motor shaft 121, to radiate to structures such as motors 12.Working accessory 14 is as electricity circle The functor of saw 100, for realizing instrumental function, working accessory 14 can be the cutting member for realizing cutting function, right For electric circular saw 100, working accessory 14 is specifically as follows circular saw blade.Output of the drive shaft 15 as electric circular saw 100, It is used to export power, and drive shaft 15 is arranged between motor 12 and working accessory 14 to drive working accessory 14, specifically, Drive shaft 15 is used to drive saw blade with around the rotation of pivot center 102 across saw blade itself.It will be appreciated by those skilled in the art that , for electric circular saw 100, drive shaft 15 can be an independent axis being driven by motor 12, can also directly by The motor shaft 121 of motor 12 is formed.

Specifically, shell 11 may include：Electric machine casing portion 111, main handle portion 112, secondary handle portion 113, interconnecting piece 114 and shield 115.Wherein, electric machine casing portion 111 further includes along around motor for accommodating motor 12, electric machine casing portion 111 The circular portion 111a of the circumferencial direction wound motor 12 of axis 101 and it is arranged around the one end of portion 111a far from working accessory 14 End 111b.Main handle portion 112 and secondary handle portion 113 are respectively used to hold for two hands of user, to realize hands grasping The purpose of the electric circular saw 100 enables a user to more stable operation electric circular saw 100.Interconnecting piece 114 is arranged in main handle Between portion 112 and secondary handle portion 113, it is used to connect main handle portion 112 and secondary handle portion 113.Shield 115 be used for saw blade into Row part surrounds, to avoid saw blade from during the work time getting rid of scrap to user.

As shown in Figures 1 to 4, fan 13 is located in electric machine casing portion 111, and fan 13 is additionally arranged at the separate of motor 12 The side of working accessory 14, fan 13 are specially centrifugal fan 13.Shell 11 is also formed with air flow inlet 116 and air stream outlet 117, air flow inlet 116 is connected to the inside and outside of shell 11, and air stream outlet 117 is connected to the inside and outside of shell 11.Wherein, air flow inlet 116 Position on shell 11 can be corresponding with the electronic components such as circuit board in shell 11, and air stream outlet 117 is arranged in motor 12 Side far from working accessory 14, and air stream outlet 117 is additionally arranged at one end that close end is leaned on around portion 111a.In this way, when electricity Machine 12 drive fan 13 rotate when, fan 13 can extract the air-flow at air flow inlet 116 and so that air-flow flow through circuit board with And got rid of after motor 12 to air stream outlet 117, to achieve the effect that radiate to motor 12 and circuit board.

As shown in Figures 1 to 6, specifically, motor 12 is external rotor electric machine comprising：Stator 122, rotor 123 and with Upper described motor shaft 121.Stator 122 is fixed to be arranged in shell 11, and motor shaft 121 is spindle rotationally arranged in shell 11 Interior, rotor 123 constitutes synchronous rotation around stator 122 and with motor shaft 121, and rotor 123 is also set up close to the side of fan 13 Be useful for so that air-flow by venthole 123a.In this way, after motor 12 starts, air-flow enters from the front side of motor 12, stream Through stator 122, then from the venthole 123a outflows of the rear side of motor 12, air stream outlet 117 is finally flowed to.But because turn Son 123 is spindle rotationally arranged in shell 11, therefore there are certain gaps between rotor 123 and the inner wall of shell 11, into one For step, which refers to rotor 123 and the possessed gap 124 between the inner wall of portion 111a.In this way, from motor 12 Rear side outflow air-flow be likely to by rotor 123 and around portion 111a inner wall between gap 124 return from the front to the back Stream to cause 12 temperature of motor to increase, and then is unfavorable for the heat dissipation of motor 12.For this purpose, electric circular saw 100 further includes being used for backstop Air-flow is by motor 12 close to the stop part 125 of a lateral other side reflux of fan 13, and in other words stop part 125 is for backstop From the air-flow that the rear side of motor 12 flows out from gap 124 of the rear side of motor 12 by rotor 123 and between portion 111a to The front side of motor 12 is flowed back, so as to improve the heat dissipation effect to motor 12.

Stop part 125 is fixed to be arranged in shell 11, and furthermore, stop part 125 constitutes fixed connect with stator 122 It connects.As shown in Figure 3 and Figure 4, stop part 125 includes the backstop being arranged at the gap 124 in rotor 123 and between portion 111a Portion 125a.In addition, as shown in Figure 3 and Figure 5, throwing of the stop part 125 in the plane of a pivot center perpendicular to rotor 123 Shadow is at least partially disposed at except projection of the rotor 123 in the plane.Wherein, the electricity of the pivot center of rotor 123 and motor 12 Arbor line 101 overlaps.

Specifically, stop part 125 further includes：First extension 125b and the second extension 125c.First extension 125b extends from stopper section 125a radially toward the direction far from motor 12, and the first extension 125b is radially extending at this Except gap 124 to rotor 123 and between portion 111a.Second extension 125c from stopper section 125a radially toward by The direction of nearly motor 12 extends, and the second extension 125c is radially extending to rotor 123 and between portion 111a at this Except gap 124.In other words, the outer wall of the first extension 125b from stopper section 125a extends outwardly, the second extension 125c It extends internally from the inner wall of stopper section 125a.In addition, stopper section 125a prolongs along the direction for the pivot center for being parallel to rotor 123 It stretches, length of the stopper section 125a on the direction of pivot center for being parallel to rotor 123 is more than the first extension 125b in radial direction On length, furthermore, length of the stopper section 125a on the direction of pivot center for being parallel to rotor 123 is more than 10mm, so that the length long enough of stopper section 125a, and then better windproof effect can be reached.It should be noted that Here radial direction refers to the radial direction of the circumferencial direction centered on the pivot center of rotor 123.

Turn as shown in fig. 7, stopper section 125a and the 126 diametrical full-size of gap between portion 111a are less than Son 123 and the 124 diametrical minimum dimension of gap between the portion 111a, furthermore, stopper section 125a with surround 126 diametrical full-size of gap between portion 111a is more than 0mm and is less than or equal to 2mm.It should be noted that diameter here To the radial direction for referring to the circumferencial direction centered on the pivot center of rotor 123.

As illustrated in figures 1 and 8, electric circular saw 100 is hand held electric tool, and user is when operating electric circular saw 100, especially When user is in high-altitude progress operation, it is frequently necessary to lead to electric circular saw 100 after carrying out operation a period of time using electric circular saw 100 Hanging hook assembly 60 is crossed to hang up to be further continued for using later.Hanging hook assembly 60 can specifically include：Connector 61 and hook Part 62, wherein connector 61 is for so that hanging hook assembly 60 is connected to shell 11, hook member 62 to be for hanging electric circular saw 100 It hangs up.

Specifically, as shown in Fig. 8 to Figure 10, hanging hook assembly 60 is arranged on the interconnecting piece 114 of shell 11, and positioned at master Between handle portion 112 and secondary handle portion 113.Specifically, hook member 62 includes hook portion 621 and shank 622, wherein shank 622 to be constituted with connector 61 with first axle 103 be the rotation connection of axis, and first axle 103 also is normal to the rotation axis of saw blade Line 102.

As shown in Figure 8 and Figure 11, connector 61 shell 11 can move between the first position and the second position relatively, and After connector 61 moves to the second position by first position, connector 61 produces rotation with respect to its own and connector 61 is opposite The rotation axis 104 for itself generating rotation also produces displacement, and connector 61 generates the rotation axis 104 of rotation with respect to itself Perpendicular to first axle 103, the pivot center 102 of the rotation axis 104 of connector 61 also parallel with saw blade.

Specifically, shell 11 is formed, there are one arc groove 114a, arc groove 114a to be arranged on interconnecting piece 114, the arc Shape slot 114a is further an arc-shaped slot.Connector 61 further includes moving portion 611, and moving portion 611 can be in arc groove Arcuately the extending direction movement of slot 114a, moving portion 611 are moved to the two of arc groove 114a in arc groove 114a in 114a Connector 61 is made to be located at first position and the second position when end.

As shown in Figure 8 and Figure 9, when connector 61 is located at first position, the hook portion 621 of hook member 62 at this time is basic It extends downwardly, to which when user's both hands hold main handle portion 112 and secondary handle portion 113 respectively, hook portion 621 will not be to user Hand cause to interfere, and then facilitate the operation of user.In fact, shell 11 can also be formed one have it is other shapes of with For the slot that moving portion 611 moves, such as say that the slot enables to moving portion 611 that rotation first occurs and then occurs again linearly Movement, in this way, still enable to connector 61 after being moved to the second position by first position, connector 61 with respect to its from Body produces rotation and connector 61 also produces displacement with respect to the rotation axis 104 of itself generation rotation, therefore, such reality It applies mode and in fact also belongs to the range that the present invention is protected.

As described above, arc groove 114a is an arc-shaped slot, the arc-shaped cell wall institute of arc groove 114a is right The central axis answered is in first axle 103.Therefrom, it may be appreciated that, connector 61 arcuately slot 114a extending direction by First position move to the process of the second position it is also assumed that be connector 61 with respect to shell 11 with one with connector 61 from The misaligned second axis 105 of shaft axis 104 be axis revolution, the second axis 105 also with the no longer same plane of first axle 103 It is interior, and second axis 105 is also perpendicularly to first axle 103.It should be noted that in the present embodiment, when connector 61 rotates Second axis 105 that is to say the center line corresponding to the arc-shaped cell wall of arc groove 114a.As long as in fact, connector 61 With shell 11 constitute can be with a second axis 105 misaligned with the rotation axis 104 of connector 61 for axis rotation connection Scheme also belongs to the range that the present invention is protected.

As shown in figs.10 and 14, arc groove 114a runs through along the direction for the rotation axis 104 for being parallel to connector 61 Interconnecting piece 114, connector 61 further include constituting the blocking portion 612 being detachably connected with moving portion 611.Blocking portion 612 is for hindering Only moving portion 611 is detached from arc groove 114a.In this way, when user installation hanging hook assembly 60, it can be first certainly mobile by blocking portion 612 It disassembles in portion 611, then so that moving portion 611 passes through arc groove 114a, then blocking portion 612 is installed to moving portion 611, To install hanging hook assembly 60 to shell 11.

The use process of hanging hook assembly 60 is introduced in detail below, and as shown in Figure 8 and Figure 9, connector 61 at this time is located at arc First position in shape slot 114a, at this moment user the electric circular saw 100 can be used to carry out sawing operation, and hook member 62 at this time The both hands for holding main handle portion 112 and secondary handle portion 113 respectively of user will not be caused to interfere, facilitate the operation of user.And When user's pause is hung up the electric circular saw 100 using the electric circular saw 100 needs, user can operate the hanging hook assembly 60 So that the extending direction of the arcuately slot 114a of connector 61 moves to the second position by first position.Specifically such as Figure 11 and Figure 12 institutes Show, connector 61 at this time has moved to the second position, and hook member 62 at this moment also substantially has rotated 90 degree with respect to shell 11.Such as Shown in Figure 11 and Figure 13, at this moment user can continue to operate the hanging hook assembly 60 so that 62 opposite joints 61 of hook member are with first Axis 103 is that shaft rotation is moved and is substantially rotated by 90 °.As shown in figure 13, hook member 62 can make with respect to the position of shell 11 at this time The respective outer side edges such as hook member 62 and crossbeam in working environment are to hang up the electric circular saw 100.

As shown in Fig. 1, Figure 15 and Figure 16, bottom plate 20 is constituted with shell 11 to be connected for the rotation of axis with a pivot axis 106 It connects.Pivot center 102 of the pivot axis 106 perpendicular to saw blade.In this way, when 11 opposed bottom 20 of shell is with pivot axis 106 When being moved for shaft rotation, the saw blade run-off the straight of electric circular saw 100 is enabled to, so that electric circular saw 100 realizes inclined cut.

As shown in Fig. 1, Figure 15 to Figure 18, angle adjusting mechanism 30 is for 11 opposed bottom 20 of guide housings with pivot axis 106 by axis rotation and being capable of the angle that rotates of adjustment housings 11.Angle adjusting mechanism 30 includes：Angle scale 31, adapter 32, sliding part 33, locating part 34 and operating element 35.

Angle scale 31 is fixedly installed to bottom plate 20, and furthermore, angle scale 31 can be integrally formed with bottom plate 20, angle Arc groove 311 is formed on disk 31.32 one end of adapter is connect with shell 11, the other end connects sliding part 33, and sliding part 33 wraps Include the sliding part 331 being slidably disposed in arc groove 311.One end that adapter 32 is connect with shell 11 also with angle scale 31 It with pivot axis 106 is the rotation connection of axis to constitute so that sliding part 33 and shell 11 constitute can with shell 11 together with Pivot axis 106 is the connection that shaft rotation is moved.In this way, when shell 11 drives sliding part 33 dynamic for shaft rotation with pivot axis 106 together When, sliding part 331 can slide in arc groove 311, and the distance that sliding part 331 slides in arc groove 311 reflects shell The angle that body 11 rotates, that is to say the angle for reflecting 100 inclined cut of electric circular saw.Locating part 34 is used for limit slippage portion 331 are directed away from bottom plate 20 in arc groove 311 slides into predeterminated position.Such as when sliding part 331 from arc groove 311 bottom of close to When the position that the angle that one end of plate 20 slides into the inclined cut for making electric circular saw 100 is 45 degree, locating part 34 can at this time By the limitation of sliding part 331 in the position so that sliding part 331 cannot be further continued for being directed away from the direction sliding of bottom plate 20.The electricity Annular saw 100 further includes coordinating with the location structure 312 of 34 position of positioning limit part, the number of location structure 312 with locating part 34 It can be multiple, in this way, when the location structure 312 of locating part 34 and different location coordinates, sliding part 33 be enabled to slide To different predeterminated positions.Operating element 35 is used for for user's operation, and in the user's operation operating element 35, operating element 35 can also drive locating part 34 to be detached from the cooperation with location structure 312.

Specifically, locating part 34 is arranged in angle scale 31 close to the side of shell 11, locating part 34 and 31 structure of angle scale At rotation connection of the axis as axis that can be parallel to pivot axis 106 using one, locating part 34 further includes the position with arc groove 311 Corresponding limiting section 341, sliding part 33 by limiting section 341 limit.The setting of operating element 35 is in angle scale 31 far from limit The other side of part 34, through-hole 313 is formed on angle scale 31, and operating element 35 passes through with locating part 34 across the through-hole 313 Screw 36 connects.Operating element 35 is specifically as follows constitutes the knob rotated synchronously with locating part 34, in this way, when user's operation is revolved When button, locating part 34 can be with knob.Location structure 312 is to be set on angle scale 31 to be directed away from 34 direction of locating part The groove of recess, locating part 34 are formed with the protrusion 342 that can be embedded in groove.It should be noted that those skilled in the art can be with Understand, the position of groove and protrusion 342 can also exchange.

Operating element 35 also constitutes the cunning for the axis direction that can be rotated along 34 relative angle scale 31 of locating part with angle scale 31 Dynamic connection, angle adjusting mechanism 30 further includes the bias piece 37 of bias being arranged between operating element 35 and angle scale 31, partially Casting die 37 can generate so that operating element 35 is directed away from the direction movement of angle scale 31, so that the protrusion on locating part 34 342 turn to be aligned with location structure 312 when towards position movement coordinate with location structure 312.It is also enclosed on angle scale 31 Through-hole 313 is provided with graduation mark 314, user can be turned to operation knob at predetermined angle, to realize electric circular saw 100 The quick positioning of different cutting angles.

Furthermore, angle adjusting mechanism 30 further includes locking piece 38, and locking piece 38 is for lock slide 33 in circle Position in arc slot 311.

It is described below how using the electric circular saw 100 progress inclined cut, such as by taking 45 degree of cuttings as an example：First, user Pressing operation element 35 is so that operating element 35 overcomes the bias of bias piece 37, to which locating part 34 is detached from and a location structure 312 cooperation, at this moment again rotary operation elements 35 and make operating element 35 turn at 45 degree of positions, locating part 34 at this moment It is rotated also with operating element 35 and turns to protrusion 342 and be aligned with another location structure 312, then user unclamps operating element 35, at this moment under the action of bias piece 37, locating part 34 is moved towards at the position coordinated with location structure 312, then user Again so that sliding part 33 is slid into arc groove 311 at limiting section 341, end user passes through 38 lock slide 33 of locking piece Position in arc groove 311, to realize 45 degree of quick positioning cut of electric circular saw 100.

As shown in Fig. 3, Figure 19 and Figure 20, bottom plate 20 is formed with the base plate plane 21 for being contacted with workpiece, and the bottom plate is flat Pivot center 102 of the face 21 also parallel with saw blade.Guider 50 is led for being oriented to the electric circular saw 100 along straight cuts workpiece Include to device 50：First guide part 51, the second guide part 52 and engaging member 53.Wherein, the first guide part 51 include for The guide surface 511 of the contact aside of workpiece, guide surface 511 extend along first straight line 107；Second guide part 52 forms useful In the guiding locking portion 521 coordinated with a guide rail 201, it is oriented to locking portion 521 and prolongs along the direction parallel with first straight line 107 It stretches.As shown in Figure 19 and Figure 25, engaging member 53 can make guider 50 be bound to the first binding site of bottom plate 20.Such as Figure 21 Shown, engaging member 53 can also make guider 50 be bound to the second binding site of bottom plate 20.User can be according to practical need Want selectable so that guider 50 is bound to the first binding site or the second binding site.It is located at the in guider 50 When one binding site, the first guide part 51 is located at the upside of base plate plane 21, and the second guide part 52 is located under base plate plane 21 Side；When guider 50 is located at the second binding site, the first guide part 51 is located at the downside of base plate plane 21, the second guide part 52 are located at the upside of base plate plane 21.

In this way, when guider 50 is located at the first binding site, the first guide part 51 is located at the upside of base plate plane 21, Second guide part 52 is located at the downside of base plate plane 21, and it is separate that the guiding locking portion 521 of the second guide part 52 is also located at motor 12 The side of saw blade can coordinate to be oriented to locking portion 521 with guide rail 201, and then at this moment electric circular saw 100 can be led by second It is oriented to part 52 to realize straight cuts.When guider 50 is located at the second binding site, the first guide part 51 is located at The downside of base plate plane 21, the second guide part 52 are located at the upside of base plate plane 21, the guide surface of the first guide part 51 511 In side of the cutting member far from motor 12, to which guide surface 511 can coordinate with the side of workpiece, and then electric circular saw 100 this When can be oriented to by the first guide part 51 to realize straight cuts.

As shown in Fig. 3, Figure 19 to Figure 25, when guider 50 is located at the first binding site, the first guide part 51 and Two guide parts 52 are respectively positioned on side of the motor 12 far from saw blade, and when guider 50 is located at the second binding site, first is oriented to Part 51 and the second guide part 52 are respectively positioned on side of the saw blade far from motor 12.Wherein, in guider 50 by the second binding site When being moved to the first binding site, the first guide part 51 is located at the upside of base plate plane 21, and at this moment the first guide part 51 is in bottom plate The position of 21 upside of plane is easy to generate interference with motor 12, for this purpose, in the present case, also so that the first guide part 51 and second It is the rotation connection of axis that guide part 52, which is constituted with third axis 108,.Specifically, 52 structure of the first guide part 51 and the second guide part It is parallel to 107 direction of first straight line at the third axis 108 of rotation connection.In this way, when guider 50 is by the second binding site When being moved to the first binding site, at this moment the first guide part 51 can turn to motor 12 far from saw blade with respect to the second guide part 52 Side, so as to avoid the location of first guide part 51 and the position of motor 12 from generating interference.

In addition, in other embodiments, the first guide part 51 can also be constituted with the second guide part 52 and is slidably connected, and it Opposite sliding direction perpendicular to 107 direction of first straight line.In this way, when guider 50 is moved to the by the second binding site When one binding site, at this moment the first guide part 51 can slide into side of the motor 12 far from saw blade with respect to the second guide part 52, So as to avoid the location of first guide part 51 and the position of motor 12 from generating interference.

As shown in figure 20, engaging member 53 is specifically as follows the ruler that can be bound to bottom plate 20.It can also be arranged on the surface of ruler It is useful for the groove 531 that instruction electric circular saw 100 cuts the size of workpiece.

The process that guider 50 is moved to the first binding site from the second binding site is introduced in detail below：Such as Figure 21 institutes Show, guider 50 at this time is located at the second binding site, and at this moment guide surface 511 is located at the downside of base plate plane 21, is oriented to Plane 511 can be with the contact aside of workpiece, and then, as shown in figure 22 to figure 23, user combines guider 50 from second Position disassembles and is overturn, and subsequently, as shown in figure 23 and figure 24, user makes the first guide part 51 opposite second lead Certain angle is rotated to part 52, preferably 90 degree here, finally, as shown in figure 25, guider 50 is bound to by user again First binding site.

As shown in Fig. 3 and Figure 26,20 supporing shell 11 of bottom plate and also to be constituted with shell 11 with first rotation 109 be axis Rotation connection, pivot center 102 of the first rotation 109 also parallel with saw blade.Depth adjusting mechanism 40 is for being oriented to And the angle that 11 opposed bottom 20 of adjustment housings is rotated with first rotation 109 by axis.

As shown in Figure 26 to Figure 29, depth adjusting mechanism 40 includes：Depth holder 41 and slide bar 42.Depth holder 41 and bottom It is the rotation connection of axis that plate 20, which is constituted with the second rotation axis 110, which is parallel to the pivot center of saw blade 102, second rotation axis 110 is also parallel and misaligned with first rotation 109.Depth holder 41 is formed with circular hole 411, circular hole 411 is along the direction depth of penetration holder 41 for being parallel to first rotation 109.Slide bar 42 constitutes solid with shell 11 Fixed connection, and slide bar 42 also extend through circular hole 411 and with 411 clearance fit of circular hole.In this way, working as 20 turns of 11 opposed bottom of shell When dynamic, slide bar 42 can in circular hole 411 along the sliding of the extending direction of circular hole 411 and slide bar 42 will not always with circular hole 411 hole wall contact.Wherein, although slide bar 42 can play certain guiding role in circular hole 411 when sliding, this meeting So that the swing of depth holder 41 is larger, to cause the scale being used to indicate indicated by the pointer of scale on depth holder 41 There is deviation.In addition, it is known that when manufacturing electric circular saw 100, the point of rotation 412 of 41 opposed bottom 20 of depth holder rotation Position it is possible that error, in this way, if if being oriented to by slide bar 42 because shell 11 is at opposite bottom Slide bar 42 is therefore, to work as the point of rotation as shell 11 moves together and slide bar 42 is relatively close apart from the point of rotation 412 when plate 20 rotates When error occurs in 412 position, depth holder 41 can be caused to generate a larger amplitude of oscillation.

And in the present case, shell 11 is also formed with opposite between bottom plate 20 and shell 11 for guiding at shield 115 The guide rail 118 of rotation, the guide rail 118 are specially the slot for the arc being formed on shield 115, the slot setting of the arc In the side of the close motor 12 of shield 115.Corresponding, depth holder 41 is formed or is fixedly connected with can be along guide rail The guide frame 413 of 118 guide track sliding, specifically, the guide frame 413 is the lug boss of energy embedded groove, lug boss Depth holder 41 is formed in close to the side of shield 115.The cell wall of the slot of arc is the guiding wall surface 118a arcuately extended, convex The portion of rising includes can be when 11 opposed bottom 20 of shell be moved with first rotation 109 for shaft rotation along the extension side for being oriented to wall surface 118a There is the contact point contacted always with guiding wall surface 118a to mobile contact wall surface 413a, on contact wall surface 413a.More For body, which is substantially in kidney-shaped, one in opposite two waists contacted always with a cell wall of slot so as to To be considered that foregoing contact wall surface 413a, another waist can form the interval of 0.5mm with another cell wall of slot, this When each point on the waist of lug boss contacted always with slot can also be considered foregoing contact point.Wherein, Lug boss is integrally formed with depth holder 41, therefore, the rotation of the contact point and the rotation of 41 opposed bottom 20 of depth holder of lug boss The distance between turning point 412 is fixed.In this way, realizing the rotation to 11 opposed bottom 20 of shell by sliding of the lug boss in slot It is oriented to, the swing of depth holder 41 can be reduced, and the error that the point of rotation 412 occurs in manufacture is to depth holder 41 The amplitude of oscillation of generated swing influences smaller.

Furthermore, lug boss is arranged in the one end of depth holder 41 far from the point of rotation 412, and contact point and depth branch The distance between the point of rotation 412 of 41 opposed bottom 20 of frame rotation is more than or equal to 50mm and is less than or equal to 150mm.In this way, can be with Further decrease the influence of error that the point of rotation 412 occurs in manufacture to being swung caused by depth holder 41.In addition, leading It is one section of changed arc of curvature to the guide track of track 118.

When depth holder 41 is oriented to only by the slide bar 42 being arranged in circular hole 411, as shown in figure 30, such as The fruit point of rotation 412 generates the foozle of 0.5mm, can be with by Figure 30 then depth holder 41 will produce a larger amplitude of oscillation Find out, the amplitude of oscillation angle that depth holder 41 generates is 1.04 degree.And when depth holder 41 is convex by being arranged on depth holder 41 When the portion of rising is oriented to, as shown in figure 31, if the point of rotation 412 generates the foozle of 0.5mm, depth holder 41 can produce A raw smaller amplitude of oscillation, as seen from Figure 31, the amplitude of oscillation angle that depth holder 41 generates are 0.32 degree.It follows that convex The setting in the portion of rising can be eliminated and be swung caused by the depth holder 41 that foozle is brought, to improve the essence of depth instruction Degree, and without increasing cost, also without the complexity of increase structure.

As shown in Fig. 2 and Figure 32, electric circular saw 100 further includes for installing working accessory 14 to the fastening of tool host 10 Device 70, wherein there are one mounting holes 141 for the formation of working accessory 14.Specifically, the working accessory 14 is foregoing fits For the saw blade of electric circular saw 100, mounting hole 141 runs through saw blade along 102 direction of pivot center of saw blade.

As shown in Figure 32 to Figure 35, clamp device 70 includes：Fastener 71, clamping piece 72, operating parts 73, rolling member 741, Bridgeware 75 and the first biased element 76.

Wherein, fastener 71 includes fastening part 711, and fastening part 711 passes through mounting hole 141, and fastening part 711 is also protruded into drive Moving axis 15 simultaneously constitutes rotation connection with drive shaft 15, and fastening part 711 can also drive entire fastening when relative drive shaft 15 rotates Device 70 is close or far from tool host 10.Rotatably to fastener 71, clamping piece 72 is also formed with clamping piece 72 for installation Clamping face 721 for being contacted with working accessory 14.Operating parts 73 is used for for user's operation, and operating parts 73 is constituted with fastener 71 It rotates synchronously.Rolling member 741 is arranged between clamping piece 72 and operating parts 73, and rolling member 741 being capable of opposing gripping members 72 and behaviour Workpiece 73 rolls.Bridgeware 75 is also disposed between clamping piece 72 and operating parts 73, bridgeware 75 also have can make clamping piece 72 The first position state rotated synchronously is constituted with operating parts 73 and clamping piece 72 and operating parts 73 can be made to constitute the of relative rotation Two location status.First biased element 76 makes bridgeware 75 towards the bias of first position state motion to the application of bridgeware 75 Power.

In this way, when user needs installation or dismantlement work attachment 14, at this moment bridgeware 75 can be made to overcome first The bias of biased element 76 and positioned at clamping piece 72 and operating parts 73 can be made to constitute the second position state relatively rotated, then use Family operates the operating parts 73, to drive fastener 71 towards make clamping face 721 close to or far from working accessory 14 position Set movement.At this moment it is relatively rotated because clamping piece 72 is constituted with operating parts 73, to which user is applied to the power on operating parts 73 only It needs to overcome between the frictional force between fastener 71 and drive shaft 15 and rolling member 741 and clamping piece 72 or operating parts 73 Force of rolling friction, and because force of rolling friction is smaller, therefore the power that user is applied on operating parts 73 is mainly used for overcoming fastening Frictional force between part 71 and drive shaft 15, so that installation or dismantlement work attachment 14 that user can be more effortless.

Specifically, the surface of fastening part 711 is provided with external screw thread, in this way, when fastening part 711 rotates, it being capable of phase Drive shaft 15 is moved on the axis direction of its rotation.Fastener 71 also extends through the flat position hole 732a being arranged on operating parts 73, Fastener 71 is provided with the flat position portion 712 for coordinating with flat position hole 732a, passes through the cooperation in flat position portion 712 and flat position hole 732a It is rotated synchronously so that operating parts 73 is constituted with fastener 71.

The number of bridgeware 75 is 2, and one far from clamping face 721 in clamping piece 72 is symmetrically arranged in two bridgewares 75 Side.Specifically, one end of bridgeware 75 is rotatably connected to side of the clamping piece 72 far from clamping face 721, the other end connects Connect the first biased element 76.The axis of 75 opposing gripping members 72 of bridgeware rotation is also parallel with 71 turns of 72 opposing fastener inserts of clamping piece Dynamic axis, and can turn to first position state and second position state when 75 opposing gripping members 72 of bridgeware rotate.Folder Side of the gripping member 72 far from clamping face 721 is provided with holding tank 722, and the first biased element 76 is specially to be arranged in holding tank 722 Interior helical spring, one end of helical spring supports the slot bottom of holding tank 722, the other end supports bridgeware 75.73 He of operating parts Bridgeware 75 is respectively formed with when they cooperate so that clamping piece 72 constitutes first rotated synchronously with operating parts 73 and passes Dynamic portion 731a and the second driving section 751.Specifically, operating parts 73 includes gear ring portion 731 and end cap portions 732, gear ring portion 731 Inner circumferential is provided with internal tooth, which is the first driving section 731a.Corresponding, bridgeware 75 is also formed with can be with ring gear portion The external tooth of 731 interior tooth engagement, the external tooth are the second driving section 751.

Operating parts 73 is also formed with for driving what bridgeware 75 overcame the first biased element 76 to be biased towards the second position The driving portion of state motion.Specifically, operating parts 73 also constitutes the axis direction of the rotation along fastener 71 with fastener 71 On be slidably connected, driving portion is the first inclined-plane 732b for being formed in end cap portions 732 at the side of clamping piece 72.It is corresponding , bridgeware 75 is formed with the second inclined-plane 752 that can coordinate with the first inclined-plane 732b.In this way, when operating parts 73 is towards close to folder When the direction sliding of gripping member 72, the first inclined-plane 732b drives the second inclined-plane 752 to make bridgeware 75 towards second position state motion.

In addition, rolling member 741 is specifically as follows the roller bolt in rolling bearing 74, rolling bearing 74 is arranged in clamping piece 72 Between operating parts 73.The second biased element 77, the second biased element are additionally provided between operating parts 73 and rolling bearing 74 77 make it be directed away from the biasing force of the sliding in the direction of clamping piece 72 to the application of operating parts 73.

When working accessory 14, which is in, is locked to drive shaft 15 by clamp device 70,77 bias of the second biased element behaviour Workpiece 73 simultaneously makes operating parts 73 be in the position far from clamping piece 72, and 76 bias bridgeware 75 of the first biased element simultaneously to turn It changes part 75 and is in first position state, at this moment the first driving section 731a and the second driving section 751 cooperate, to clamping piece 72 It constitutes and rotates synchronously with operating parts 73, if at this moment user directly rotates if operating parts 73 carrys out dismantlement work attachment 14, The rotary force that user is applied to operating parts 73 is not only needed to overcome the frictional force between fastener 71 and drive shaft 15 but also be wanted Overcome the stiction between clamping piece 72 and working accessory 14, and the stiction is larger, therefore user's rotary operating member 73 It can be relatively elaborate.And in the present case, when user needs dismantlement work attachment 14, in fact, user can first pressing operation part 73, at this moment bridgeware 75 can be driven to turn to second position state by the cooperation of the first inclined-plane 732b and the second inclined-plane 752, To which the first driving section 731a and the second driving section 751 are detached from, so operating parts 73 can opposing gripping members 72 rotate, then use Family rotary operating member 73 again, at this moment user be applied to operating parts 73 rotary force only need to overcome fastener 71 and drive shaft 15 it Between frictional force and rolling member 741 and clamping piece 72 or operating parts 73 between force of rolling friction, and because of force of rolling friction It is smaller, therefore the power that user is applied on operating parts 73 is mainly used for overcoming the frictional force between fastener 71 and drive shaft 15, Enable a user to more effortless realization installation or dismantlement work attachment 14.

In fact, the clamp device 70 not only can be only used for installing saw blade to saw class tool, can be also used for beat Grinding installation to angle is ground, and is not limited thereto certainly.

It should be noted that if the partial hole in this case is to run through some in a certain direction without strictly speaking bright its Part, then the hole is also likely to be to be replaced by slot.In other words, the partial groove in this case can also be replaced with hole, part Hole can also be replaced with slot.

The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should Understand, the invention is not limited in any way above-described embodiment, all to be obtained by the way of equivalent substitution or equivalent transformation Technical solution is all fallen in protection scope of the present invention.

Claims (12)

1. a kind of hand-hold power tool, including：

Shell；

Output, for exporting power；

Prime mover is arranged in the shell；

It is characterized in that：

The hand-hold power tool further includes：

Hanging hook assembly, for hanging the hand-hold power tool；

The hanging hook assembly includes：

Connector, for making the hanging hook assembly be connected to the shell；

Hook member, including hook portion and can the relatively described connector using first axle be the dynamic shank of shaft rotation；

Wherein, the relatively described shell of the connector can at least move between the first position and the second position；In the connection After part moves to the second position by the first position, the connector is with respect to itself producing rotation and the connector The opposite rotation axis for itself generating rotation also produces displacement.

2. hand-hold power tool according to claim 1, it is characterised in that：

The shell is formed with an arc groove, and the connector includes can be in the arc groove along the extension side of the arc groove To being moved to the moving portion for making the connector be located at the first position and the second position.

3. hand-hold power tool according to claim 2, it is characterised in that：

The arc groove is arc-shaped slot, and the central axis corresponding to the arc-shaped cell wall of the arc groove is in described the One axis.

4. hand-hold power tool according to claim 2, it is characterised in that：

The connector further includes the blocking portion for preventing the moving portion from being detached from the arc groove, the blocking portion with it is described Moving portion composition is detachably connected.

5. hand-hold power tool according to claim 1, it is characterised in that：

The connector with respect to itself generate rotation rotation axis perpendicular to the first axle.

6. according to the hand-hold power tool described in claim 1 to 5 any one, it is characterised in that：

The shell is also formed with：

Main handle portion is held for a hand for user；

Secondary handle portion is held for the another hand for user；

Interconnecting piece, for connecting the main handle portion and the secondary handle portion；

The hanging hook assembly is set on the interconnecting piece and between the main handle portion and the secondary handle portion.

7. hand-hold power tool according to claim 6, it is characterised in that：

The hand-hold power tool is the saw class tool that a saw blade can be driven to rotate.

8. hand-hold power tool according to claim 7, it is characterised in that：

The first axle is perpendicular to the pivot center of the saw blade, rotation axis of the connector with respect to itself generation rotation It is parallel to the pivot center of the saw blade.

9. a kind of hand-hold power tool, including：

Shell；

Output, for exporting power；

Prime mover is arranged in the shell；

It is characterized in that：

The hand-hold power tool further includes：

Hanging hook assembly, for hanging the hand-hold power tool；

The hanging hook assembly includes：

Connector, for making the hanging hook assembly be connected to the shell；

Hook member, including hook portion and can the relatively described connector using first axle be the dynamic shank of shaft rotation；

Wherein, the connector, which is constituted with the shell with one and the second axis of the first axle not in the same plane, is The rotation connection of axis.

10. hand-hold power tool according to claim 9, it is characterised in that：

The second axis of the relatively described housing into rotation of the connector is perpendicular to the first axle.

11. hand-hold power tool according to claim 9 or 10, it is characterised in that：

The shell is also formed with：

Main handle portion is held for a hand for user；

Secondary handle portion is held for the another hand for user；

Interconnecting piece, for connecting the main handle portion and the secondary handle portion；

The hanging hook assembly is set on the interconnecting piece and between the main handle portion and the secondary handle portion.

12. hand-hold power tool according to claim 11, it is characterised in that：

The hand-hold power tool is the saw class tool that a saw blade can be driven to rotate.