CN109838487A - A kind of electric tool for the clutch of electric tool and with this clutch - Google Patents
A kind of electric tool for the clutch of electric tool and with this clutch Download PDFInfo
- Publication number
- CN109838487A CN109838487A CN201711215358.6A CN201711215358A CN109838487A CN 109838487 A CN109838487 A CN 109838487A CN 201711215358 A CN201711215358 A CN 201711215358A CN 109838487 A CN109838487 A CN 109838487A
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- clutch
- retainer
- gear
- electric tool
- bracket
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Abstract
The present invention relates to a kind of clutches for electric tool comprising: adjust the regulating mechanism of transmission mechanism transmission mode in electric tool；It is characterized in that, the clutch includes a chocking construction, the chocking construction is installed on electric tool, it include the elastic element (22) of elastic force between bracket (21), the retainer (23) and offer bracket (21) and retainer (23) that are pivotally mounted on relative to bracket (21), the retainer (23) is equipped with stop tooth (231).The invention further relates to a kind of electric tools with above-mentioned clutch.Clutch configuration according to the present invention is simple, with less component, in particular for less installation space, component is few, structure is simple can make that cost reduces and reliability improves again so that include this clutch electric tool also have the advantages that it is corresponding.
Description
Technical field
The present invention relates to a kind of clutch for electric tool and a kind of electric tools with this clutch.
Background technique
In field of power tools, especially in the case where electric hammer, electric drill and impact drill, generally require in process
(gear shift) is switched over to the operation mode of electric tool or disengages the transmission system of electric tool without output torque.At this
In a little operating process, it is required to drive respective gears in propeller shaft slip by clutch, respective gears and transmission is adjusted with this
The relationship of engagement and disengaging between axis, with the handoff functionality of this operation mode for reaching electric tool.When respective gears pass through
After clutch is detached from after adjusting with transmission shaft, a chocking construction that can be engaged with respective gears would generally be arranged in clutch, so as to
The gear can be made to be reliably held at the position and be transmitted axis driving without continuing, prevent gear from rotating with this.
This clutch designs are divided into two types in the prior art:
1) the first is the mobile clutch of chocking construction, which is made from multiple components, and structure and shape
Considerably complicated, screen resilience and stopping power along the helical spring acted axially on chocking construction by providing, and this clutch is for example
There is clutch used in the electric hammer GBH2-20D of Bosch electric tool Co., Ltd；
2) second is the irremovable clutch of chocking construction, wherein chocking construction is fixed on the shell of electric tool
Upper and fixed, screen resilience and cushion effect are provided by acting axially on the spring structure of gear, the gear and stop knot
Structure matches, and this clutch for example has clutch used in the electric hammer GBH2-26DRE of Bosch electric tool Co., Ltd
Device.
In the following, will be referring to being described for Fig. 1 and 2 clutch used in the electric hammer GBH2-20D, the clutch is extremely
It less include six components, thus, it is extremely complex in structure.In particular, as shown in Figure 1, the clutch at least has the first spiral shell
Revolve spring 1, the first stamping parts 2, the second stamping parts 3, chocking construction 4, the second helical spring 5 and guiding bar 6.As shown in Fig. 2, drawing
Guide rod 6 is set in parallel with transmission shaft, i.e. clutch side that transmission shaft is arranged in.Gear 12 passes through geared sleeve 11 and transmission shaft
Linkage, by handsetting gear set 11, the interaction relation of adjustable gear 12 and transmission shaft.When geared sleeve 11 is allocated to by clutch
When right movement, and when the spline of the tooth and transmission shaft on geared sleeve 11 disengages, component that chocking construction 4 is covered with handsetting gear to
Right movement.Gear 12 includes the driving gear with its one, and the diameter of the driving gear is slightly larger than the diameter of gear 12, and sets
It is placed in the right side of gear 12, the driving gear of gear 12 can be encountered when chocking construction 4 moves right.When gear rotates small angle
When degree or slight vibration, the tooth engagement of the driving gear of the tooth and gear of chocking construction 4, so that gear 12 be made not can be rotated.This
Sample, the transmission shaft that gear 12 would not be rotated again drive because of friction.When the linkage pass for needing adjustment gear 12 and transmission shaft
When being, clutch handsetting gear set 11 to the left is adjusted, while chocking construction 4 being driven to be moved to the left, make gear 12 and chocking construction 4
Tooth separation, and by geared sleeve 11 make transmission shaft drive gear 12 rotate.
It can be seen that this clutch is a kind of axial movement formula, and its chocking construction needs are parallel with transmission shaft simultaneously
It is arranged at interval, to need relatively large installation space, this is very unfavorable to the compact design of electric tool.In addition,
The structure of clutch itself is also complex, and manufacturing cost is relatively high.
Summary of the invention
The object of the present invention is to provide a kind of improved clutches for electric tool and one kind to have this clutch
Electric tool make it possible to save installation space, letter to solve above-mentioned various deficiencies of existing clutch and electric tool
Change the structure of clutch itself and reduces cost.
Above-mentioned purpose in this way realize by a kind of clutch for electric tool, and the clutch includes: that adjusting is electronic
The regulating mechanism of transmission mechanism transmission mode in tool；It is characterized in that, the clutch includes a chocking construction, the stop knot
Structure is installed on electric tool, is included bracket, the retainer being pivotally mounted on relative to bracket and is provided bracket and stop
The elastic element of elastic force between part, the retainer are equipped with stop tooth.
Preferably, the transmission mechanism includes by the transmission shaft of the driving device driving of electric tool and being sheathed on transmission shaft
On gear, which can slide along the extending direction of transmission shaft, and the flower that can be driven mutually is provided between gear and transmission shaft
Key, the stop tooth on the retainer are suitable for the tooth engagement with gear.
Preferably, the clutch is adjustable extending direction of the gear on transmission shaft along transmission shaft and moves, gear and biography
The engagement and disengaging of spline are adjusted by clutch by adjustment gear between moving axis, when the spline on gear and transmission shaft is detached from,
The tooth of gear and the stop tooth engagement of retainer.By using this chocking construction, spline can be taken off between gear and transmission shaft
From when remain stationary gear reliably.
Preferably, the bracket has the fixed part being fixed on electric tool and bearing part, the bearing part
For U-shaped structure, the pivoting member that retainer can be made to pivot relative to bracket is carried on the phase of the U-shaped structure of the bearing part
To on two arms of setting.By the way that bracket is divided into the two parts, the base of the chocking construction of clutch can be more reasonably realized
This function.It moreover, bearing part uses U-shaped structure, may make the chocking construction of clutch more stable, operate more reliable.
Preferably, the retainer is U-shaped structure, and two be oppositely arranged the arm of the U-shaped structure of the retainer supports
In the pivoting member.By making retainer match retainer preferably with U-shaped bearing part using U-shaped structure,
To can further improve the stability and reliability of the chocking construction of clutch, while stop tooth can be more easily set.
Preferably, the retainer has limiting section, the limiting section in the side opposite with stop tooth of pivoting member
The bearing part of the bracket is abutted against when chocking construction is not contacted with the end face of gear.The limiting section makes retainer only
Dynamic structure is opened not too bigly when not contacting with the end face of gear, to can be pivoted by the end face of gear when with Gear Contact
And it is reliably engaged with the tooth of gear.
Preferably, the hole that there is the fixed part transmission shaft to pass through.Under this arrangement, it is convenient to will
The chocking construction of clutch is arranged at the suitable position in electric tool.
Preferably, the elastic element is wind spring or angular reed, two legs difference of the wind spring or angular reed
Fixed to the bracket and retainer.This makes elastic element structure very simple, and can directly buy on the market, because
This, reduces the manufacturing cost of clutch.Simultaneously by making two legs of wind spring or angular reed be respectively fixed to the branch
Frame and retainer, but also retainer is opened when chocking construction is not contacted with the end face of gear not too bigly, thus with
It can be pivoted by the end face of gear when Gear Contact and reliably be engaged with the tooth of gear.
Preferably, the bracket and retainer are made of plate.This makes the manufacture of bracket and retainer more simple, from
And it reduces the manufacturing cost of clutch and reduces number of components, and keep structure more stable.
Above-mentioned purpose also passes through a kind of electric tool realization with this clutch.
Since the chocking construction of clutch according to the present invention is using pivotably, structure is by a relatively simple,
With less component, in particular for less installation space, component is few, structure is simple can make cost reduction and reliability again
It improves.
Detailed description of the invention
In the following, describing the present invention in detail referring to attached drawing, by the detailed description, those skilled in the art can be more
Understand the features and advantages of the present invention well.Attached drawing includes:
Fig. 1 shows the clutch for electric tool of the prior art with solid, which is axial displacement
, and at least there are six components for tool；
State and its work when being mounted on electric tool Fig. 2 shows the clutch for electric tool of the prior art
Make principle；
Fig. 3 shows the chocking construction of clutch according to the present invention with solid, and the chocking construction of the clutch uses
Be move pivotally；
Fig. 4 shows the side view of the chocking construction of clutch according to the present invention；
The state when chocking construction that Fig. 5 shows clutch according to the present invention is mounted on electric tool, stops at this time
Dynamic structure is in off working state；
Fig. 6 shows another state of the chocking construction of clutch according to the present invention on electric tool, at this time gear
The retainer of chocking construction is disengaged and compressed with spline；And
Fig. 7 shows last abundant stop shape of the chocking construction of clutch according to the present invention on electric tool
State, gear interacts with the retainer of chocking construction at this time, that is, the stop tooth of retainer is meshed with the tooth of gear.
Specific embodiment
Fig. 1 shows the clutch for electric tool (herein for electric hammer) of the prior art with solid, Fig. 2 shows
Installation condition and its working principle when the clutch of the prior art is mounted on electric tool.Since it belongs to the prior art
And this is described in detail before, here, being repeated no more to succinctly consider.
Fig. 3 shows the chocking construction of clutch according to the present invention with solid.The clutch uses and existing skill
The entirely different structure of the chocking construction of art, with bracket 21, elastic element 22, retainer 23 and pivoting member 24.Bracket
21 for being fixed in electric tool (herein by taking electric hammer as an example), for carrying retainer 23 and pivoting member 24, and with flower
The axis 27 of key passes through the hole being centrally located in two holes of bracket 21, so that retainer 23 can be in gear 26 and with spline
Axis 27 abut against the end face of gear 26 when disengaging.
Preferably, bracket 21 and retainer 23 are integrally fabricated by way of punching press and bending, certainly may be used
Using other suitable manufacturing methods, such as casting and machining.Optionally, bracket 21 can also be made from multiple components.
Bracket 21 includes fixed part 211 and bearing part 212, and the fixed part 211 is herein for example at the form of plate
And for being fixed on electric tool.For this purpose, the fixed part 211 has at least one fixed structure.Certainly, fixed part
211 other than using the form of plate, also can be used other any suitable structure types and geometry, and its fixed knot
Structure can also take various forms as needed, such as fixed structure passes through shape cooperation and electronic work using mode is snapped connection
Corresponding construction cooperation in tool, with realization being connected and fixed between the two.Even, can by fixed part 211 directly by bonding,
The modes such as welding are fixed on the inside of electric tool, but this is not a kind of preferred embodiment.Obviously, in some cases, bracket 21
It can be fixed at other suitable positions of electric tool, functionally, as long as bracket 21 can be such that bearing part 212 carries
Retainer 23 is in the position of reliable operation.
Bearing part 212 is mainly used for carrying retainer 23, pivoting member 24 and the wind spring for serving as elastic element 22.Tool
It says to body, as shown in figure 3, bearing part 212 is generally U-shaped and integrally formed with fixed part 211 herein.In U-shaped structure
At least one is respectively provided on two arms being oppositely arranged for installing the pivot structure of pivoting member 24, the pivot structure is herein
For hole.A kind of more preferably mode is that the pivot structure in two arms is through-hole, so as to by pivoting member from any one arm
Outside penetrate in two through-holes.Certainly, the pivot structure on two arms can also be blind hole, and pivoting member is during installation at this time
Pivoting member can be caught in blind hole from inside and temporarily opening two arms of U-shaped structure.It is readily apparent that can also
Make the pivot structure through-hole of an arm in two arms, the pivot structure of another arm is blind hole, at this time can be by pivoting member
It is inserted into through-hole from the side of through-hole and reaches in another blind hole always.
Preferably, pivoting member is pin or other rod-like structures, or even can directly adopt commercially available common pin.
Preferably, retainer 23 is also generally U-shaped herein, which includes plate-like main part and two-phase
To the arm of setting, and two two arms being oppositely arranged are equipped with through-hole, the through-hole in assembled state with bearing part 212 two
Hole on a arm is aligned and is passed through by pivoting member 24, and by pivoting member 24, retainer 23 can be revolved with respect to bearing part 212
Turn.U-shaped retainer is relatively installed with U-shaped bearing part 212, i.e. the open side of U-shaped retainer 23 and U-shaped bearing part 212
Open side it is opposite, and U-shaped bearing part 212 has U-shaped retainer 23 in arms from outside.Obviously, if by U-shaped bearing part 212
Two be oppositely arranged arm the upper right corner removal, U-shaped retainer 23 can also be made to have U-shaped bearing part 212 in arms from outside.Also
It is to say, after assembly, as long as it is pre- to rotate U-shaped retainer 23 can relative to U-shaped bearing part 212 under the action of gear
Determine angle.Under this functional requirement, or even an arm of U-shaped bearing part 212 can also be made to be located at U-shaped retainer 23
Outside, and another arm of U-shaped bearing part 212 is located at the inside of U-shaped retainer 23.
Retainer 23 with the tooth of gear 26 for being meshed so that gear 26 can stop operating and be maintained at one properly
Orientation.For this purpose, preferably having at least one stop tooth 231 on the main part of retainer 23, which can be with gear
26 tooth engagement, so as to reliably prevent the rotation of gear 26.
Certainly, retainer 23 and bearing part 212 can also be other shapes, for example, C-shaped or L shape.It is L shape in the two
In the case where, retainer 23 and bearing part 212 only link together at a position via pivoting member 24, pivot at this time
Element 24 is the form of cantilever beam, that is, pivoting member 24 only has one end and is supported on bearing part 212, and the other end suspends,
Retainer 23, which also only has at one, to be supported in pivoting member 24.It can also make 212 L shape of bearing part, and retainer 23 is still U
Shape, at this point, pivoting member 24 is still the form of cantilever beam, but two arms of U-shaped retainer 23 are both supported upon in pivoting member 24.
Even pivoting member directly can be fixed and be formed on retainer.For example, in U-shaped bearing part from outside cover
In the case where U-shaped retainer (as shown in Figure 3), two short aixs cylinders (pivoting member) are integrally formed in retainer respectively
The outside for two arms being oppositely arranged simultaneously protrudes outward.When assembling, by opposite the setting of the two aixs cylinders insertion U-shaped bearing part
In the through-hole on two arms or blind hole set.In the case where U-shaped retainer has U-shaped bearing part in arms from outside, aixs cylinder
The inside of two be oppositely arranged the arm of retainer is set and is protruded inwardly from.
According to another embodiment, this aixs cylinder can also be arranged on bearing part, and be arranged on retainer corresponding
Pivot structure, such as through-hole or blind hole.In the case where U-shaped bearing part has U-shaped retainer in arms from outside (such as Fig. 3 institute
Show), aixs cylinder is arranged in the inside of two be oppositely arranged the arm of U-shaped bearing part and protrudes inwardly from.In U-shaped retainer from outside
In the case where having U-shaped bearing part in arms, aixs cylinder is arranged in the outside of two be oppositely arranged the arm of U-shaped bearing part and to evagination
Out.
Using integrally formed aixs cylinder, number of components and manufacturing cost can be reduced, and assembly can be simplified
Process.
For L-shaped retainer and bearing part, may also set up such aixs cylinder in principle, but at this time retainer and
Assembly between bearing part is less firm and reliable.
Alternatively, it is also possible to expect, the through-hole for being used to receive pivoting member 24 on retainer 23 is replaced with into notch.Example
Such as, for the chocking construction of clutch shown in Fig. 3, respectively it is arranged in the downside of two be oppositely arranged the arm of retainer 23
One open notch downward, to only need to be put into retainer 23 in pivoting member from the top down, in assembly so that stop
Notch on part 23 rides in pivoting member 24.Which greatly simplifies assembling process.
In order to enable retainer 23 to compress opposite 212 pivot of bearing part under effect in the end face of the tooth of gear 26
It springs back again afterwards, elastic element 22 is clamped between retainer 23 and bearing part 212.Here, elastic element 22 is, for example, wind spring.
Preferably, if it is possible, wind spring is sleeved in pivoting member 24.To, when gear 26 is struck side direction movement to the left,
One end compresses retainer 23, and elastic element 22 can be tensioned retainer 23 and bearing part 212 and retainer 23 is made to have rebound
Trend.When stop 23 stop tooths 231 are by the fine rotation of gear 26 or vibration and the tooth engagement of gear 26, stop
The rebound of part 23 and the tooth of limiting gear 26 in the circumferential, therefore, gear 26 can not be rotated further by and be stably maintained at suitable side
Position.
Other forms, such as angular reed etc. also can be used other than using the form of wind spring in elastic element.Angular
In the case where reed, elastic element can not resided in pivoting member, and be only clamped between retainer and bearing part.?
In this case, the form of short pivoting member can be used in pivoting member, for example, by using the form of aixs cylinder as described above.This
Outside, have between bearing part and retainer at two in the case where be pivotally connected, two short pivoting members can also be used, i.e.,
A short pivoting member, which is respectively provided with, in two sides is pivotably connected bearing part and retainer.In bearing part and retainer
Between only have and be pivotally connected at one in the case where, be only pivotally connected at position using a short pivoting member.Obviously, this
Sample can be substantially reduced material cost.
It may also be noted that in order to be maintained at retainer 23 such as figure in the case where not contacting with the end face of gear 26
Position shown in 5, retainer 23 (in Fig. 3, that is, can also pivoted in the side opposite with stop tooth 231 of pivoting member 24
The downside of element 24) there is limiting section, limiting section position shown in Fig. 5 abuts against the bearing part 212 of bracket 21 and makes
Retainer 23 is obtained to open not too bigly.Obviously, other than in this way, it is also conceivable that, by wind spring or angular reed
Two legs 221 be separately fixed on retainer 23 and bracket 21.
Fig. 4 shows the chocking construction of the clutch in Fig. 3 with sectional view.It is clear that stop from the figure
For part 23 using mode is pivotally connected, this greatly reduces the size of clutch.
In the following, describing the chocking construction of clutch of the invention and the assembly relation of gear and operating process in conjunction with Fig. 5-7.
From Fig. 5-7 as can be seen that chocking construction is mounted on the end in the shell (not shown) of electric tool and with gear 26
Face is opposite.In particular, the retainer 23 of chocking construction and the end face of gear 26 are facing.Although axis 27 passes through as described above
One hole of the fixed part 211 of bracket, it is apparent that it's not necessary, because regardless of the specific structure of fixed part,
As long as the retainer assembled can be made opposite with the end face of gear.
When beginning, as shown in figure 5, gear 26 is engaged by spline with axis 27, gear 26 can be driven by axis 27 and be revolved at this time
Turn, and at this point, gear 26 is separated with 23 phase of retainer of chocking construction, retainer 23 does not interfere the rotary motion of gear 26.
When needing to adjust the operating mode of electric tool, as shown in fig. 6, gear 26 is allocated to a left side by aforementioned clutch
It is mobile, keep gear 26 and the spline of axis 27 completely disengaged.At this point, gear 26 with the spline of axis 27 because being detached from, axis 27 cannot pass through
Spline continues that gear 26 is driven to rotate.And gear 26 is stirred be moved to the left when, the side phase of left side and retainer 23
Against.And it drives retainer 23 to overcome elastic element 22 with pivoting member 24 for rotation center, is rotated relative to bearing part 212
One angle, elastic element 22 provide the relaxation power between retainer 23 and bearing part 212.Meanwhile one is also arranged on axis 7
Spring 28, this spring 28 are located at the left side of gear 26, and when gear 26 is struck and is moved to the left, this is sleeved on transmission shaft
Spring 28 is compressed by gear 26, provides the Flexible Reset power of gear 26.Due to the stop tooth on the tooth and retainer 23 of gear 26
231 may not just engage at the time of contact, and therefore, retainer 23 is in pivotal orientation.Electric tool is in gear 26 at this time
Under the operating mode disengaged with axis 27.
At this time if gear 26 rotates small angle or generates slight vibration, the tooth of gear 26 will be with retainer 23
Stop tooth 231 engage, as shown in fig. 7, and because chocking construction is fixed in electric tool, in this way, gear 26 cannot again by
Rotation, and the orientation of its tooth is also determining.
When needing to adjust the operating mode of electric tool again, by aforementioned clutch, make gear 26 by spring 28
Resilient force under move right.Engage gear 26 with axis 27 again through spline, and gear 26 passes through the driving of axis 27
And it rotates.
Although above referring to attached drawing be described in detail clutch chocking construction basic structure and a variety of embodiment party
Formula, but without departing from the basic spirit of the present invention, it can still carry out various modifications and changes.In addition, although above
The application and basic structure of clutch are described by taking electric hammer as an example, it is apparent that the clutch can also be applied to other electric tool examples
Such as impact drill or electric drill.Further speaking, it needs stop as long as electric tool has and is maintained at the gear of appropriate orientation, so that it may
This chocking construction is applied to this electric tool.Moreover, above-mentioned each technical characteristic can be used alone or be combined with each other
Ground uses, without departing from protection scope of the present invention.
Since the chocking construction of clutch according to the present invention is using pivotably, structure is by a relatively simple,
With less component, in particular for less installation space, component is few, structure is simple can make cost reduction and reliability again
It improves.
Claims (10)
1. a kind of clutch for electric tool comprising:
Adjust the regulating mechanism of transmission mechanism transmission mode in electric tool；
It is characterized in that, the clutch includes a chocking construction, it includes bracket which, which is installed on electric tool,
(21), elasticity between the retainer (23) and offer bracket (21) and retainer (23) being pivotally mounted on relative to bracket (21)
The elastic element (22) of power, the retainer (23) are equipped with stop tooth (231).
2. clutch as described in claim 1, which is characterized in that the transmission mechanism includes by the driving device of electric tool
The transmission shaft of driving and the gear being sheathed on transmission shaft, the gear can be slided along the extending direction of transmission shaft, gear and transmission
The spline that can be driven mutually is provided between axis, the stop tooth on the retainer is suitable for the tooth engagement with gear.
3. clutch as claimed in claim 2, which is characterized in that the clutch is adjustable gear on transmission shaft along transmission
The extending direction of axis is mobile, and engaging for spline passes through adjustment gear adjusting, tooth by clutch with disengaging between gear and transmission shaft
When wheel is detached from the spline on transmission shaft, the tooth of gear and the stop tooth engagement of retainer.
4. such as clutch as claimed in any one of claims 1-3, which is characterized in that the bracket (21), which has, is fixed to electronic work
Fixed part (211) and bearing part (212) on tool, the bearing part (212) are U-shaped structure, can make retainer (23)
Pivoting member (24) relative to bracket (21) pivot is carried on being oppositely arranged for the U-shaped structure of the bearing part (212)
Two arms on.
5. clutch as claimed in claim 4, which is characterized in that the retainer (23) is U-shaped structure, the retainer
(23) two be oppositely arranged the arm of U-shaped structure is supported on the pivoting member (24).
6. clutch as claimed in claim 4, which is characterized in that the retainer (23) pivoting member (24) and stop
The opposite side of tooth (231) have limiting section, the limiting section chocking construction not with the end face of gear (26) contact when against
The bearing part (212) of the bracket (21).
7. clutch as claimed in claim 4, which is characterized in that there is the fixed part (211) transmission shaft to pass through
Hole.
8. the clutch as described in any in claim 1-3 and 5-7, which is characterized in that the elastic element (22) is wind spring
Or angular reed, two legs (221) of the wind spring or angular reed are respectively fixed to the bracket (21) and retainer
(23)。
9. the clutch as described in any in claim 1-3 and 5-7, which is characterized in that the bracket (21) and retainer
(23) it is made of plate.
10. a kind of electric tool, which is characterized in that the electric tool has the clutch as described in any in claim 1-9
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215358.6A CN109838487A (en) | 2017-11-28 | 2017-11-28 | A kind of electric tool for the clutch of electric tool and with this clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215358.6A CN109838487A (en) | 2017-11-28 | 2017-11-28 | A kind of electric tool for the clutch of electric tool and with this clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109838487A true CN109838487A (en) | 2019-06-04 |
Family
ID=66881031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711215358.6A Pending CN109838487A (en) | 2017-11-28 | 2017-11-28 | A kind of electric tool for the clutch of electric tool and with this clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109838487A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111437940A (en) * | 2020-04-22 | 2020-07-24 | 杭州富阳新远新能源有限公司 | Biomass fuel particle crushing equipment |
-
2017
- 2017-11-28 CN CN201711215358.6A patent/CN109838487A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111437940A (en) * | 2020-04-22 | 2020-07-24 | 杭州富阳新远新能源有限公司 | Biomass fuel particle crushing equipment |
| CN111437940B (en) * | 2020-04-22 | 2021-07-02 | 杭州富阳新远新能源有限公司 | Biomass fuel particle crushing equipment |
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Application publication date: 20190604 |