CN208663337U - Rechargeable angle grinder - Google Patents
Rechargeable angle grinder Download PDFInfo
- Publication number
- CN208663337U CN208663337U CN201821501293.1U CN201821501293U CN208663337U CN 208663337 U CN208663337 U CN 208663337U CN 201821501293 U CN201821501293 U CN 201821501293U CN 208663337 U CN208663337 U CN 208663337U
- Authority
- CN
- China
- Prior art keywords
- shell
- drive shaft
- plate
- angle grinder
- push plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
Abstract
The utility model provides a kind of rechargeable angle grinder, belongs to power tools technology field.It solves the technical problems such as existing safety deficiency.This rechargeable angle grinder, including shell, the drive shaft for being used for transmission power is fixedly installed in shell, activity, which is embedded, on shell is equipped with locking press button, being provided in shell can be along the limit plate that drive shaft radially slides, the blocked hole for passing through the avoid holes of rotation for drive shaft and being connected to avoid holes is provided on limit plate, the notch face for being formed with blocked hole and being circumferentially clamped is provided on drive shaft outer wall, locking press button and limit plate are connected and the displacement of locking press button can drive limit plate that drive shaft is made to enter blocked hole from avoid holes, the return unit for driving limit plate to reset drive shaft is provided in shell.The utility model guarantees that drive shaft is kept fixed when bistrique replacement, and convenient for ensure that safety while operation, the circumferential cooperation in blocked hole and notch face is so that clamping power is on the driving shaft evenly distributed, clamping stabilization.
Description
Technical field
The utility model belongs to field of power tools, is related to a kind of rechargeable angle grinder.
Background technique
Currently, in order to improve working efficiency, people would generally use electric tool that manpower tool is replaced to carry out various engineerings
Operation.Electric tool utilizes motor driven working position to move, and then realizes the processing of product.
Existing electronic angle grinder drives the rotation of transmission shaft rotation driving mill by motor, but grinds in disassembly
When disk, in order to ensure, convenient for turning the structures such as nut, needing transmission shaft being kept fixed state when disassembly.
China's Patent Application Publication (notification number: CN207087602U；The day for announcing: 2018.03.13) in disclose a kind of angle
Including head capsule and internal transmission shaft is arranged in the gear locking structure of grinding machine, is provided with transmission gear on transmission shaft, on head capsule
Transmission gear is provided with lock hole on transmission gear, and the lock pin with lock hole cooperation, lock pin and lock hole are provided on head capsule
Cooperation transmission gear can be allowed to be kept fixed state.
In above-mentioned technical proposal, on locking structure, need to grasp when fixed using the fit structure of lock pin and counterbore
Make to carry out pressing operations to lock pin, alignment is more demanding, and engagement site is limited.
Summary of the invention
The utility model aiming at the above problems existing in the prior art, provides a kind of rechargeable angle grinder, this is practical new
Type the technical problem to be solved is that: how to improve the safety in angle grinder use process.
The purpose of this utility model can be realized by the following technical scheme:
A kind of rechargeable angle grinder, including shell are fixedly installed the drive shaft for being used for transmission power, institute in the shell
It states activity on shell and is embedded with locking press button, which is characterized in that being provided in the shell can be along the limit that drive shaft radially slides
Position plate is provided with drive shaft energy described in the avoid holes passed through for drive shaft and the blocked hole being connected to avoid holes on the limit plate
It is rotated in avoid holes inner circumferential, the notch face for sliding into blocked hole for drive shaft, the notch is provided on the drive shaft outer wall
It is circumferentially fixed that the conflict of face and blocked hole inner wall forms drive shaft, the locking press button and limit plate is connected and the position of locking press button
Shifting can drive limit plate movement that drive shaft is made to enter blocked hole from avoid holes, be provided in the shell for driving limit plate to move
It is dynamic that drive shaft is made to reset at the return unit in avoid holes.
The structure of blocked hole and avoid holes provides the switching to drive shaft two states on limit plate, locking press button and multiple
Position part can drive limit plate shift reciprocately, and then provide the power of switching for limit plate.It is multiple in this way during routine use
Position part drives limit plate to be located in avoid holes by drive shaft always, and such drive shaft rotates freely unaffected.Until needs pair
When mill is dismantled, by pressing locking press button, limit plate can be allowed to be displaced, allow drive shaft to slide into blocked hole in this way
Interior, drive shaft can keep drive shaft stationary state because the cooperation of notch face and blocked hole is circumferentially clamped, once unclamp locking
Drive shaft can be allowed to affranchise rotation after button.It can enough guarantee that drive shaft is kept fixed when bistrique replacement in this way,
Convenient for ensure that safety while operation, the circumferential cooperation in blocked hole and notch face is so that clamping power is distributed on the driving shaft
Even, clamping is stablized.
In above-mentioned rechargeable angle grinder, the return unit is reset spring, the reset spring and locking press button point
It Wei Yu not the opposite two sides of limit plate.The left and right position for being convenient for limit plate in the structure being oppositely arranged of reset spring and locking press button
It moves.
In above-mentioned rechargeable angle grinder, notch face quantity is two and is mutually, and the blocked hole inner wall is set
Set a pair of and consistent card access surface of notch interplanar distance.The face face clamping structure in the notch face and card access surface being parallel to each other is capable of forming
Stablize effective clamping power, it is ensured that the two is relatively fixed.
In above-mentioned rechargeable angle grinder, the push plate for capableing of alternating translational is provided in the hull outside, it is described to push away
It is hinged with wraping plate on plate, is hinged in the middle part of the wraping plate in the push plate, the starting with contact is fixed in the shell
Switch, the wraping plate are able to drive the push plate and translate and make the contact started switch described in the push plate touch, the push plate
Push plate described in elastic component and the resilient element urges is equipped between the shell to move backward, the shell is equipped with card slot,
The front end of the wraping plate is equipped with convex body, the push plate touch described in start switch contact when the convex body can be embedded in the card
In slot.
Wraping plate is pushed to overcome the elastic force of elastic component and push plate is driven to translate forward, after push plate touches the contact started switch,
Angle grinder starting, then presses the front end of wraping plate, makes the convex body of wraping plate front end in card slot, and push plate is made to keep lock state,
When using this angle grinder, the finger of operator can be removed from wraping plate, have easy to operate and operation more comfortable.
When needing to close this angle grinder, by pressing the rear end of wraping plate, convex body is detached from out of card slot at this time, in the work of elastic component elastic force
It is resetted with lower drive push plate and wraping plate, push plate at this time is detached from the contact of switch, makes switch in the state closed, has operation
Safety and stability in the process uses more convenient advantage.
In above-mentioned rechargeable angle grinder, the triggering face being obliquely installed on the downside of the front end of the push plate, the triggering face
On the upside of the contact started switch and the triggering face can push the contact.There is inclination on the downside of the front end of push plate
The triggering face of setting makes being moved along for push plate that can smoothly touch the contact started switch, after elastic component drives push plate
When shifting, triggering face smooth can be detached from from the contact started switch, have the advantages that work is more reliable and structure is relatively simple.
In above-mentioned rechargeable angle grinder, the elastic component is spring, and the both ends of the elastic component are born against in institute
It states in shell and the push plate, the shell is equipped with positioning groove, and the wraping plate is in the positioning groove and described
Wraping plate can move in the positioning groove.Elastic component uses spring, has the advantages that the operation is stable and elastic effect is preferable,
Wraping plate is in positioning groove and wraping plate can be slided along positioning groove, has locating effect preferably and wraping plate is not likely to produce partially
It moves, has the advantages that operation is more convenient.
In above-mentioned rechargeable angle grinder, the positioning column of coaxial arrangement, the bullet are equipped in the middle part of the rear end of the push plate
The both ends of spring are respectively sleeved on the positioning column, and the one end on the gear edge and the spring on the shell with protrusion is resisted against
The gear is along upper.Using above-mentioned setting, there is preferable locating effect to spring, avoid falling off for spring, make operation more
Reliable advantage.
In above-mentioned rechargeable angle grinder, the shell is equipped with pilot hole, the rear end of the push plate and the guiding
Hole matches and the rear end of the push plate is on the pilot hole.The rear end of push plate is embedded in pilot hole, has the translation of push plate
There is preferable guide effect.
In above-mentioned rechargeable angle grinder, the shell is detachably connected equipped with battery pack, and described battery pack one end is inserted
Enter to enclosure interior, the motor for driving drive shaft turns is set in the shell, the motor is electrically connected with battery pack
It connects.What battery pack can continue is powered internal motor, while the detachable structure of battery pack can be convenient for battery
Packet with changing and charging operations.
In above-mentioned rechargeable angle grinder, the angle grinder further includes cradle, is provided with and is used on the cradle
To the charge port of battery pack charging.By the design of charge port, so that battery pack is directly inserted into charge port after taking apart
Charging inside can be realized, it is more efficient and convenient.
Compared with prior art, the utility model has the advantage that
1, the fixation of drive shaft can be conveniently realized by the structure of limit plate, it is ensured that drive when replacement bistrique
The stable structure of moving axis guarantees the stability of safety and operation.
2, in starting switch for opening and closing, can be allowed using the structure of wraping plate and elastic component start switch open or
Stabilization more is kept when person closes, and prevents maloperation, and operate and more facilitate.
3, using the structure of battery pack, when stable power-supplying, the structure of cradle can also be cooperated to carry out charging benefit
Energy is filled, is operated more convenient, safety and stability.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the present embodiment.
Fig. 2 is the cross-sectional view in Fig. 1 along locking press button A-A.
Fig. 3 is the sectional perspective structure chart in the present embodiment in drive shaft.
Fig. 4 is the partial sectional view started switch in the present embodiment.
Fig. 5 is the explosive view that battery pack is separated with shell in the present embodiment.
Fig. 6 is the local structural graph of battery pack and cradle in the present embodiment.
In figure, 1, shell；11, card slot；12, positioning groove；13, edge is kept off；14, pilot hole；2, push plate；21, face is triggered；
22, positioning column；3, wraping plate；31, convex body；4, it starts switch；41, contact；5, elastic component；6, drive shaft；61, notch face；7, it locks
Determine button；8, limit plate；81, avoid holes；82, blocked hole；821, card access surface；83, return unit；91, battery pack；92, cradle；
921, charge port.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, a kind of rechargeable angle grinder, including shell 1, it is fixedly installed in shell 1 and is used for transmission power
Drive shaft 6 and for drive drive shaft 6 rotate motor, motor by drive shaft 6 with rotary bistrique rotate, complete angle mill plus
Work.
As shown in Figure 2 and Figure 3, activity is embedded and is equipped with locking press button 7 on shell 1, and locking press button 7 can be protruded and be contracted
The movement entered.It is provided with to be provided on the limit plate 8 that drive shaft 6 radially slides, limit plate 8 in shell 1 and be worn for drive shaft 6
The blocked hole 82 crossing the avoid holes 81 of rotation and being connected to avoid holes 81, the structure such as institute in figure of avoid holes 81 and blocked hole 82
Show, the notch face 61 for being formed with blocked hole 82 and being circumferentially clamped is provided on 6 outer wall of drive shaft, and 61 quantity of notch face is two and is
It is parallel to each other, described 82 inner wall of blocked hole setting a pair and the consistent card access surface 821 of 61 spacing of notch face.
Locking press button 7 and limit plate 8 are connected and the displacement of locking press button 7 can drive limit plate 8 to make drive shaft 6 from avoid holes
81 enter blocked hole 82, are provided in shell 1 for driving limit plate 8 that drive shaft 6 is made to reset at the return unit in avoid holes 81
83, return unit 83 is reset spring, reset spring and locking press button 7 two sides that be located at limit plate 8 opposite, press lock by
Button 7 can allow limit plate 8 to be displaced.
Return unit 83 drives limit plate 8 that drive shaft 6 is allowed to be located in avoid holes 81 always, and such shaft rotates freely not by shadow
It rings.When needing to dismantle mill, by pressing locking press button 7, limit plate 8 can be allowed to be displaced, allow drive in this way
Moving axis 6 slides into blocked hole 82, and drive shaft 6 can keep driving because notch face 61 and the cooperation of blocked hole 82 are circumferentially clamped
6 stationary state of moving axis, once drive shaft 6 can be allowed to affranchise rotation after unclamping locking press button 7.
As best shown in figs. 1 and 4, it is additionally provided with the push plate 2 for capableing of alternating translational on shell 1, is hinged with wraping plate 3 in push plate 2,
The middle part of wraping plate 3 is hinged in push plate 2, and shell 1 is equipped with positioning groove 12, and wraping plate 3 is in positioning groove 12,3 energy of wraping plate
It is enough to be moved in positioning groove 12, have locating effect preferably and wraping plate 3 is not likely to produce offset, has operation conveniently excellent
Point.
It is fixed in shell 1 and starts switch 4 with contact 41, wraping plate 3 is able to drive push plate 2 and translates and touch push plate 2
It is dynamic start switch 4 contact 41, can allow motor start-up in this way.Spring 5 is equipped between push plate 2 and shell 1, and spring 5 pushes away
Dynamic push plate 2 is moved backward, and shell 1 is equipped with card slot 11, and the front end of wraping plate 3 is equipped with convex body 31, and the touch of push plate 2 starts switch 4
Convex body 31 can be in card slot 11 when contact 41.
The triggering face 21 being obliquely installed on the downside of the front end of push plate 2, triggering face 21 be located at start switch 4 41 upside of contact and
Triggering face 21 can push contact 41.The positioning column 22 of coaxial arrangement, the both ends difference of spring 5 are equipped in the middle part of the rear end of push plate 2
It is set on positioning column 22, there is preferable locating effect to spring 5, avoid falling off for spring 5, keep operation more reliable
Advantage.Have the gear of protrusion along 13 on shell 1, one end of spring 5 is resisted against gear along 13.Shell 1 is equipped with pilot hole 14, pushes away
The rear end of plate 2 and pilot hole 14 match and the rear end of push plate 2 is on pilot hole 14, have the translation of push plate 2 preferable
Guide effect.
Alternatively, spring 5 is substituted using rubber column.
When opening, wraping plate 3 is pushed to overcome the elastic force of spring 5 and push plate 2 is driven to translate forward, the triggering face 21 of push plate 2
After touch starts switch 4 contact 41, electric tool starting then presses the front end of wraping plate 3, makes the convex body 31 of 3 front end of wraping plate
In card slot 11, push plate is made to keep lock state, when using this angle grinder, the finger of operator can be from wraping plate 3
It removes, has easy to operate and operation more comfortable.When needing to close this angle grinder, by pressing the rear end of wraping plate 3, this
When convex body 31 be detached from out of card slot 11, drive push plate 2 and wraping plate 3 to reset under the action of 5 elastic force of spring, push plate at this time 2
The disengaging of triggering face 21 starts switch 4 contact 41, makes to start switch 4 in the states closed, has operation conveniently excellent
Point.
There is the triggering face 21 being obliquely installed on the downside of the front end of push plate 2, touch being moved along for push plate 2 can smoothly
The contact 41 for starting switch 4, when elastic component drives push plate 2 to move back, triggering face 21 can be smooth from the contact 41 for starting switch 4
It is detached from, has the advantages that work is more reliable and structure is relatively simple.
As shown in Figure 5 to Figure 6,1 bottom of shell is detachably connected equipped with battery pack 91, and 91 one end of battery pack is inserted into shell
Inside 1, battery pack 91 can realize that the disassembly with shell 1 is fixed by card and the cooperation of card slot 11.When battery pack 91 is inserted into
When in shell 1, it can be electrically connected by contact 41 between motor and battery pack 91.
Angle grinder further includes cradle 92, and the charge port 921 for charging to battery pack 91 is provided on cradle 92, when
Battery pack 91, which disassembles, to be inserted into charge port 921, after then cradle 92 is powered can to battery pack 91 into
Row charging.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although 1, shell is used more herein；11, card slot；12, positioning groove；13, edge is kept off；14, pilot hole；2, it pushes away
Plate；21, face is triggered；22, positioning column；3, wraping plate；31, convex body；4, it starts switch；41, contact；5, elastic component；6, drive shaft；
61, notch face；7, locking press button；8, limit plate；81, avoid holes；82, blocked hole；821, card access surface；83, return unit；91, electric
Chi Bao；92, cradle；921, the terms such as charge port, but it does not exclude the possibility of using other terms.Only using these terms
Merely to being more convenient to describe and explain the essence of the utility model；Being construed as any additional limitation is all
It is contrary to the spirit of the present invention.
Claims (10)
1. a kind of rechargeable angle grinder, including shell (1), the shell (1) is interior to be fixedly installed the driving for being used for transmission power
Axis (6), activity is embedded with locking press button (7) on the shell (1), which is characterized in that being provided in the shell (1) can be along drive
The limit plate (8) that moving axis (6) radially slides, be provided on the limit plate (8) avoid holes (81) passed through for drive shaft (6) and
The blocked hole (82) being connected to avoid holes (81), the drive shaft (6) can rotate in avoid holes (81) inner circumferential, the drive shaft
(6) the notch face (61) that blocked hole (82) are slid into for drive shaft (6), notch face (61) energy and blocked hole are provided on outer wall
(82) inner wall conflict forms drive shaft (6) circumferentially fixed, and the locking press button (7) is connected with limit plate (8) and locking press button
(7) displacement can drive limit plate (8) are mobile drive shaft (6) is made to enter blocked hole (82) from avoid holes (81), the shell (1)
It is inside provided with for driving limit plate (8) mobile return unit (83) for resetting at drive shaft (6) in avoid holes (81).
2. rechargeable angle grinder according to claim 1, which is characterized in that the return unit (83) is reset spring, institute
It states reset spring and locking press button (7) is located at the opposite two sides of limit plate (8).
3. rechargeable angle grinder according to claim 1, which is characterized in that notch face (61) quantity is two and is
It is parallel to each other, described blocked hole (82) inner wall setting a pair and the consistent card access surface of notch face (61) spacing (821).
4. rechargeable angle grinder according to claim 1, which is characterized in that being provided on shell (1) outside can
The push plate (2) of alternating translational is hinged with wraping plate (3) on the push plate (2), is hinged on the push plate in the middle part of the wraping plate (3)
(2) on, starting switch (4) with contact (41) is fixed in the shell (1), the wraping plate (3) is able to drive described push away
Plate (2) translates and makes the contact (41) for starting switch (4) described in the push plate (2) touch, the push plate (2) and the shell
(1) it is equipped with elastic component (5) between and the elastic component (5) pushes the push plate (2) to move backward, the shell (1) is equipped with
The front end of card slot (11), the wraping plate (3) is equipped with convex body (31), and the contact of (4) is started switch described in push plate (2) touch
(41) Shi Suoshu convex body (31) can be in the card slot (11).
5. rechargeable angle grinder according to claim 4, which is characterized in that be obliquely installed on the downside of the front end of the push plate (2)
Triggering face (21), the triggering face (21) is located on the upside of the contact (41) for starting switch (4) and the triggering face (21)
The contact (41) can be pushed.
6. rechargeable angle grinder according to claim 4, which is characterized in that the elastic component (5) is spring, the elastic component
(5) both ends are born against on the shell (1) and the push plate (2), and the shell (1) is equipped with positioning groove
(12), the wraping plate (3) is in the positioning groove (12) and the wraping plate (3) can move in the positioning groove (12)
It is dynamic.
7. rechargeable angle grinder according to claim 6, which is characterized in that be equipped in the middle part of the rear end of the push plate (2) coaxial
The positioning column (22) of setting, the both ends of the spring are respectively sleeved on the positioning column (22), are had on the shell (1) convex
Gear out is resisted against the gear on (13) along one end of (13) and the spring.
8. rechargeable angle grinder according to claim 4, which is characterized in that the shell (1) is equipped with pilot hole (14), institute
It states the rear end of push plate (2) and the pilot hole (14) match and the rear end of the push plate (2) is on the pilot hole (14).
9. rechargeable angle grinder according to claim 1, which is characterized in that shell (1) bottom, which is detachably connected, to be set
Have battery pack (91), described battery pack (91) one end is inserted into shell (1) inside, and setting is for driving drive in the shell (1)
The motor of moving axis (6) rotation, the motor are electrically connected with battery pack (91).
10. rechargeable angle grinder according to claim 9, which is characterized in that the angle grinder further includes cradle (92),
The charge port (921) for charging to battery pack (91) is provided on the cradle (92).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821501293.1U CN208663337U (en) | 2018-09-13 | 2018-09-13 | Rechargeable angle grinder |
| PCT/CN2019/104689 WO2020052497A1 (en) | 2018-09-13 | 2019-09-06 | Rechargeable angle grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821501293.1U CN208663337U (en) | 2018-09-13 | 2018-09-13 | Rechargeable angle grinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208663337U true CN208663337U (en) | 2019-03-29 |
Family
ID=65842619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821501293.1U Active CN208663337U (en) | 2018-09-13 | 2018-09-13 | Rechargeable angle grinder |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN208663337U (en) |
| WO (1) | WO2020052497A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020052497A1 (en) * | 2018-09-13 | 2020-03-19 | 浙江承康机电制造有限公司 | Rechargeable angle grinder |
| CN112917337A (en) * | 2021-01-27 | 2021-06-08 | 南京腾亚精工科技股份有限公司 | Multifunctional sander |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112217138B (en) * | 2020-10-13 | 2022-02-01 | 青岛索尔汽车有限公司 | High-altitude electricity taking vehicle |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2346100B (en) * | 1997-12-02 | 2000-12-06 | Scintilla Ag | Device for arresting a shaft |
| CN2527394Y (en) * | 2002-03-22 | 2002-12-25 | 文登市电机厂 | Grinder having locking device |
| CN203712443U (en) * | 2014-02-26 | 2014-07-16 | 博深工具股份有限公司 | Locking structure for angle grinder |
| JP6277042B2 (en) * | 2014-04-01 | 2018-02-07 | 株式会社マキタ | Electric tool |
| CN206794903U (en) * | 2017-04-10 | 2017-12-26 | 南京德朔实业有限公司 | Hand held cutting tool |
| CN207087602U (en) * | 2017-08-04 | 2018-03-13 | 福建惠安县坚固电机有限公司 | A kind of gear latch-up structure of angle grinder |
| CN107639508A (en) * | 2017-11-02 | 2018-01-30 | 应瑶琪 | A kind of burnishing device for ceramic making |
| CN208663337U (en) * | 2018-09-13 | 2019-03-29 | 浙江承康机电制造有限公司 | Rechargeable angle grinder |
-
2018
- 2018-09-13 CN CN201821501293.1U patent/CN208663337U/en active Active
-
2019
- 2019-09-06 WO PCT/CN2019/104689 patent/WO2020052497A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020052497A1 (en) * | 2018-09-13 | 2020-03-19 | 浙江承康机电制造有限公司 | Rechargeable angle grinder |
| CN112917337A (en) * | 2021-01-27 | 2021-06-08 | 南京腾亚精工科技股份有限公司 | Multifunctional sander |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020052497A1 (en) | 2020-03-19 |
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