CN202656162U - Pendulant power tool provided with damping device - Google Patents
Pendulant power tool provided with damping device Download PDFInfo
- Publication number
- CN202656162U CN202656162U CN 201220030436 CN201220030436U CN202656162U CN 202656162 U CN202656162 U CN 202656162U CN 201220030436 CN201220030436 CN 201220030436 CN 201220030436 U CN201220030436 U CN 201220030436U CN 202656162 U CN202656162 U CN 202656162U
- Authority
- CN
- China
- Prior art keywords
- flexible member
- actuator
- type power
- pendulum
- power tool
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Percussive Tools And Related Accessories (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The utility model provides a pendulant power tool provided with a damping device. The pendulant power tool provided with the damping device is simple and compact in structure, low in cost, and comfortable to operate. A motor is contained in a shell body of the pendulant power tool, the motor is connected with a drive shaft used for driving a work head through a back and forth pendulant transmission device, and drives the drive shaft to pendulate back and forth around the axis of the drive shaft, a drive piece of the transmission device is provided with at least one elastic element of the damping device in an action mode, a first action end of the elastic element can act on the shell body, a second action end of the elastic element can act on a supporting plane at the inner side of the drive piece, and the supporting plane at the inner side of the drive piece is basically perpendicular to the pendulant direction of the transmission device. Therefore, the pre-compaction length of the elastic element can be increased, the compression ratio of the elastic element in work is reduced, working conditions of the elastic element are improved, and service life of the elastic element is prolonged. Besides, damping performance of the pendulant power tool can be improved to the larger extent, and the shell body with the smaller size to contain the drive piece and the damping device is designed conveniently.
Description
Technical field
The utility model relates to a kind of hand-held pendulum-type power tool, especially a kind of pendulum-type power tool with vibration absorber.
Background technology
The patent US2003/0220058A1 of Germany FEIN company application is a kind of pendulum-type power tool, in the housing of pendulum-type power tool, accommodate motor, motor is connected with the driving shaft that is used for the driving working head by the transmission device of reciprocally swinging, drive driving shaft around its axis reciprocally swinging, each effect of two outsides of the actuator of transmission device has a helical spring of vibration absorber, a helical spring end acts on the housing inboard, and the helical spring other end acts on the supporting surface in the actuator outside.
The driving shaft of pendulum-type power tool swings around the high-frequent reciprocating of its axis with 0.6~7 ° little angle of revolution and per minute 5000~25000 times, the helical spring that acts on two outsides of actuator also will bear high-frequency compression and the return motion of per minute 5000~25000 times, satisfy the pendulum-type power tool of user's needs as working life (such as 100 hours), its helical spring will bear 10 in the pendulum-type power tool life cycle management
8Inferior compression and return motion, 10
8The inferior life-span is that extremely cruel (the general helical spring life-span is 10 to helical spring
6Inferior); helical spring end owing to this pendulum-type power tool acts on the housing inboard simultaneously; the other end acts on the supporting surface in the actuator outside; the actuator outside is to the close together of housing inboard; helical spring precompressed length is shorter; relatively arrive distance and the certain helical spring of the amplitude of oscillation of reciprocally swinging axis; compression ratio during its helical spring work is larger; therefore the helical spring of this pendulum-type power tool is behind the work certain hour; spring often can because of elastic extenuation or tired the inefficacy, cause pendulum-type power tool or its vibration absorber to work.
Summary of the invention
The purpose of this utility model is: provide a kind of simple and reliable for structure, and damping property pendulum-type power tool preferably.
The utility model is achieved through the following technical solutions:
Pendulum-type power tool with vibration absorber, in the housing of pendulum-type power tool, accommodate motor, motor is connected with the driving shaft that is used for the driving working head by the transmission device of reciprocally swinging, drive driving shaft around its axis reciprocally swinging, effect has at least one flexible member of vibration absorber on the actuator of transmission device, the preferred helical spring of flexible member, the first effect end of flexible member can act on the housing, and the second effect end of flexible member can act on the supporting surface with the substantially vertical actuator inboard of the swaying direction of transmission device.
The utility model has the advantage of: the first effect end of flexible member can act on the housing, the second effect end can act on the supporting surface with the substantially vertical actuator inboard of the swaying direction of transmission device, this has just increased the precompressed length of flexible member greatly, relatively arrive distance and the certain flexible member of the amplitude of oscillation of reciprocally swinging axis, compression ratio during its flexible member work is just smaller, this has just improved the working condition of flexible member greatly, prolonged the working life of flexible member, therefore can improve largely the damping property of pendulum-type power tool, also be convenient to design the housing that reduced size just can contain actuator and vibration absorber, just can satisfy the needs of instrument vibration damping, the convenient operation person cosily grips and operates pendulum-type power tool.
The effect end of the flexible member of vibration absorber can act on housing or with the supporting surface of the substantially vertical actuator inboard of the swaying direction of transmission device on, refer to vibration absorber flexible member the effect end reciprocally swinging in the work period sometime the section or overall process in, have an effect in the effect end of flexible member and housing or actuator inboard, action time is changeable.The number of flexible member can be one, two even a plurality of, can be determined on a case-by-case basis.
The further Improvement and perfection of measure that this pendulum-type power tool with vibration absorber is described in can be by the following technical programs.
The effect end of flexible member can act on the housing directly or indirectly.The effect end of flexible member can act directly on the supporting surface with the substantially vertical housing inboard of the swaying direction of transmission device; The effect end of flexible member can act on the housing indirectly by transition bracket, and the flexible member supporting surface of transition bracket is substantially vertical with the swaying direction of transmission device.
The effect end of flexible member can act directly on the supporting surface of actuator inboard or indirectly act on by the flexible member seat on the supporting surface of actuator inboard.
At least one effect end in two effect ends of flexible member can be to housing and the actuator effect of hocketing.This flexible member effect end is had an effect with housing in the sometime section of reciprocally swinging in the work period, has an effect at another time period and the actuator of reciprocally swinging in the work period, and both of these case alternately repeats.
Two effect ends of flexible member can to housing and the actuator effect of hocketing, be the optimization to a upper scheme all.Arbitrary effect end is had an effect with housing in the sometime section of reciprocally swinging in the work period in two effect ends of flexible member, has an effect at another time period and the actuator of reciprocally swinging in the work period, and both of these case alternately repeats.
Two supporting surface spacings of actuator inboard equate substantially with the two elastic elements supporting surface spacing of two supporting surface spacings of housing inboard or transition bracket.Can guarantee that like this vibration absorber swings in the overall process of reciprocally swinging work period or half that the actuator to pendulum-type power tool plays vibration damping and damping action in the work period.Spacing equates to refer between the two apart from more approaching substantially, two supporting surface spacings of actuator inboard can be more bigger than the two elastic elements supporting surface spacing of two supporting surface spacings of housing inboard or transition bracket, also can be more smaller than the two elastic elements supporting surface spacing of two supporting surface spacings of housing inboard or transition bracket, vibration absorber just can play vibration damping and damping action by the actuator to pendulum-type power tool in swing process.
Can certainly be provided with step by the flexible member seat.By being provided with step at the flexible member seat, do not wait with the two supporting surface spacings that remedy the actuator inboard and two supporting surface spacings of housing inboard or the two elastic elements supporting surface spacing of transition bracket, so that vibration absorber actuator to pendulum-type power tool within the more time that swings the work period plays vibration damping and damping action.
Flexible member is at least part of to be included in the actuator, even all is included in the actuator.Be convenient to design the housing that can contain actuator and vibration absorber of reduced size, just can satisfy the needs of instrument vibration damping, the convenient operation person cosily grips and operates pendulum-type power tool.
Flexible member is spiral compression spring or helical torsional spring, and quantity only has one.The helical spring that spiral compression spring and helical torsional spring are relatively more conventional is convenient in enormous quantities, low-cost and high-precision ground manufacturing.Vibration absorber adopts a flexible member can reduce the quantity of flexible member, reduces cost, can avoid again the not quite identical and problem that causes of two flexible member parameters.
There are thread connection or adhesive attachment between driving shaft and the actuator.Like this can be with the most conventional thread connection and these two kinds of mechanical attachment modes of adhesive attachment that driving shaft and actuator is low-cost, be linked together reliably.
Be provided with at least one on the working head receiving terminal of driving shaft and be used for receive and shape of steady job head element that is connected, the shape element that is connected is preferably the pin that connects with the driving shaft interference fit.By the working head receiving terminal at driving shaft the tangible element that is connected is set, can will be connected ordinatedly with the shape work capitiform that element matches that is connected, realize that pendulum-type power tool works efficiently.
Description of drawings
Fig. 1 a is the partial longitudinal section of the first embodiment of the present utility model, and the flexible member of vibration absorber is helical spring among the figure, and quantity is two; Fig. 1 b is the I I partial sectional view of Fig. 1 a, and actuator is in the reciprocally swinging center.
Fig. 2 a is the II II partial cross-sectional view of Fig. 1 a illustrated embodiment, and the helical spring of vibration absorber acts directly between the supporting surface of the supporting surface of housing inboard and actuator inboard among the figure.
Fig. 2 b be the second embodiment of the present utility model partial cross-sectional view, the helical spring of vibration absorber acts on housing and the actuator by transition bracket and flexible member seat respectively among the figure, actuator is in the reciprocally swinging center.
Fig. 3 a and Fig. 3 b be the 3rd embodiment of the present utility model partial cross-sectional view, the helical spring number of vibration absorber is one among the figure, the actuator among Fig. 3 a is in oscillation center, the actuator among Fig. 3 b departs from oscillation center left.
Fig. 4 a, Fig. 4 b and Fig. 4 c be respectively the 4th, the 5th and the 6th embodiment of the present utility model partial cross-sectional view, the helical spring number of vibration absorber is one among the figure.
Fig. 5 a and Fig. 5 b be the of the present utility model the 7th and the 8th embodiment partial cross-sectional view, the helical spring number of vibration absorber is one among the figure.
Fig. 6 is the partial longitudinal section of the 9th embodiment of the present utility model, and the helical spring number of vibration absorber is one among the figure.
The specific embodiment
Such as Fig. 1 a, shown in Fig. 1 b and Fig. 2 a: the pendulum-type power tool (10) with vibration absorber (50), in the housing (20) of pendulum-type power tool (10), accommodate motor (40), motor (40) is connected with the driving shaft (70) that is used for driving working head (60) by the transmission device (30) of reciprocally swinging, drive driving shaft (70) around its axis (72) reciprocally swinging, the upper effect of the actuator (35) of transmission device (30) has two helical springs (51 of vibration absorber (50), 52), helical spring (51,52) the first effect end (51A, 52A) act on the inboard supporting surface (21A of housing (20), 22A), helical spring (51,52) the second effect end (51B, 52B) act on the inboard supporting surface (35B) of the substantially vertical actuator (35) of the swaying direction of transmission device (30) on.
Actuator is in the state of oscillation center among Fig. 1 b, helical spring (51,52) be pressed in advance the inboard supporting surface (21A of housing (20), 22A) and between the inboard supporting surface (35B) of actuator (35), the actuator (35) of pendulum-type power tool (10) transmission device (30) under the bearing that is connected with the eccentric output shaft of motor (40) drives to lower swing, depart from oscillation center, helical spring (51) absorbs kinetic energy and progressively compression, helical spring (52) discharges elastic potential energy and replys, until swing to downside farthest; Actuator (35) is under the bearing that is connected with the eccentric output shaft of motor (40) drives, upwards swing, helical spring (51) discharges elastic potential energy and replys, and helical spring (52) absorbs kinetic energy and progressively compression, until swing to the solstics of upside; Actuator (35) is again under the driving of motor (40), to lower swing, helical spring (51) absorbs kinetic energy and progressively compression, helical spring (52) discharges elastic potential energy and replys, actuator is got back to the state of oscillation center, finish a reciprocally swinging cycle, pendulum-type power tool (10) repeats above-mentioned motion cycle and works.Pendulum-type power tool (10) is in swing process, and actuator (35) inboard is close to bearing all the time, can reduce like this bump vibration and noise that both produce owing to quite moving, thereby reach effectiveness in vibration suppression.
Helical spring (51 among Fig. 1 b, 52) be pressed in advance the inboard supporting surface (21A of housing (20), 22A) and between the inboard supporting surface (35B) of actuator (35), helical spring (51,52) has long precompressed length L 1, and the flexible member of the described pendulum-type power tool of the German FEIN US2003/0220058A1 of company acts between housing and the actuator outside, the precompressed length L 0 of its flexible member is relatively short, relatively to the distance of reciprocally swinging axis and amplitude of oscillation 2S certain flexible member all, compression ratio when the design's flexible member is worked is just smaller, this has just improved the working condition of flexible member greatly, prolonged the working life of flexible member, therefore can improve largely the damping property of pendulum-type power tool, also be convenient to design the housing that just can contain actuator and vibration absorber of reduced size, satisfy the needs of instrument vibration damping, the convenient operation person cosily grips and operates pendulum-type power tool.
The effect end of flexible member can act on the housing directly or indirectly.The effect end of flexible member can act directly on the supporting surface with the substantially vertical housing inboard of the swaying direction of transmission device; The effect end of flexible member also can act on the housing indirectly by transition bracket, and the flexible member supporting surface of transition bracket is substantially vertical with the swaying direction of transmission device.The effect end of flexible member can act directly on the supporting surface of actuator inboard simultaneously, or indirectly acts on by the flexible member seat on the supporting surface of actuator inboard.
Shown in Fig. 2 b, helical spring (51,52) the first effect end (51A, 52A) by transition bracket (23A, 23B) indirectly act on the housing (20), the second effect end (51B, 52B) of helical spring (51,52) acts on the supporting surface of actuator inboard indirectly by flexible member seat (36).
Transition bracket (23A, 23B) among Fig. 2 b is two independent components, also can be designed to an integral member to both; The as a whole element of flexible member seat (36) among Fig. 2 b also can be designed to two independent components to both.
Actuator among Fig. 3 a (35) is in oscillation center, one effect end (51AB) of the helical spring during this state (51) acts on the supporting surface (35B) of the left inside side of actuator (35), another effect end (51B) of helical spring (51) acts on the supporting surface (35B) of actuator (35) Right Inboard, the actuator (35) of pendulum-type power tool (10) swings left under the driving of motor (40), after swinging certain distance, one effect end (51AB) of helical spring (51) contacts with transition bracket (23) gradually, should separate with the supporting surface (35B) of the left inside side of actuator (35) gradually by effect end (51AB) simultaneously, transition bracket (23) is compression helical spring (51) further, after swinging again certain distance, pendulum-type power tool be shown in Fig. 3 b state, be that actuator (35) among Fig. 3 b is in the state that departs from oscillation center, the effect end (51AB) of helical spring (51) acts on the housing (20) indirectly by transition bracket (23), until swing to the solstics in left side, actuator (35) swings to the right under the driving of motor (40), the effect end (51AB) of helical spring (51) contacts with the supporting surface (35B) of the left inside side of actuator (35) gradually, be separated with transition bracket (23) gradually, helical spring (51) is returned to the length of supporting surface (35B) spacing of actuator (35) two inboards gradually, until swing to the solstics on right side, under the driving of motor (40), swing left again, until the state shown in Fig. 3 a is finished a reciprocally swinging cycle.At a reciprocally swinging in the cycle, the effect end (51AB) of helical spring (51) respectively contacts once with the supporting surface (35B) of transition bracket (23) and the left inside side of actuator (35) respectively, pendulum-type power tool repeats above-mentioned motion cycle and works, the effect end (51AB) of helical spring (51) plays damping effect alternately to housing and actuator effect to pendulum-type power tool.But helical spring (51) only plays damping effect departing from oscillation center in the process of left movement, effectiveness in vibration suppression is more limited.
Actuator among Fig. 4 a (35) is in oscillation center, helical spring during this state (51) is pressed in advance to be acted between inboard two supporting surfaces (35B) of actuator (35), inboard two supporting surfaces (35B) space D 2 of actuator (35) equates substantially with the two elastic elements supporting surface space D 1 of the transition bracket (21A) of housing inboard, and D1 is slightly larger than D2; Actuator among Fig. 4 b (35) also is in oscillation center, helical spring during this state (51) is pressed between the two elastic elements supporting surface of the transition bracket (21A) that acts on the housing inboard in advance, inboard two supporting surfaces (35B) space D 2 of actuator (35) also equates substantially with the two elastic elements supporting surface space D 1 of the transition bracket (21A) of housing inboard, but D1 is slightly less than D2.(51) two of helical springs among Fig. 4 a and Fig. 4 b effect end (51AB) all can be alternately to housing and actuator effect, thereby pendulum-type power tool is played damping effect.When two effects of helical spring (51) are held (51AB) to act on simultaneously on the housing or are acted on simultaneously the actuator inboard, pendulum-type power tool is not played damping effect, but relatively single effect end (51AB) alternately to the pendulum-type power tool of housing and actuator effect, significantly improve by its effectiveness in vibration suppression.D1 and D2 difference should be less than the component value of twice eccentric throw (being 2S) at the swaying direction of the helical spring application point formation of actuator, otherwise do not have effectiveness in vibration suppression, so two supporting surface spacings of actuator inboard should equate substantially with two supporting surface spacings of housing inboard or the two elastic elements supporting surface spacing of transition bracket.
Fig. 4 c develops the perfect condition that forms by Fig. 4 a and Fig. 4 b, D1=D2, all the time alternation of helical spring is among absorbing the kinetic energy compression and discharging the state of elastic potential energy answer, pendulum-type power tool (10) actuator (35) inboard is close to bearing all the time, reduce bump vibration and noise that both quite move and produce, can reach desirable effectiveness in vibration suppression.
Fig. 5 a and Fig. 5 b are the distortion of Fig. 4 c, and (51) two effect ends of the helical spring among Fig. 5 a (51AB) all can alternately act on D3=D2 to housing (20) and actuator (35); (51) two effect ends of helical spring among Fig. 5 b (51AB) all alternately act on housing (20) and actuator (35) indirectly by flexible member seat (36), and flexible member seat (36) is provided with step.By being provided with step at the flexible member seat, do not wait with the two supporting surface space D 2 that remedy the actuator inboard two supporting surface space D 3 with the housing inboard, so that vibration absorber actuator to pendulum-type power tool within the more time that swings the work period plays vibration damping and damping action.
In Fig. 3 a, Fig. 3 b, Fig. 4 a, Fig. 4 b, Fig. 4 c, Fig. 5 a and 5b and Fig. 6, flexible member is spiral compression spring, and quantity all is one, only being convenient to pendulum-type power tool with a spiral compression spring makes at low cost, can solve simultaneously the FEIN pendulum-type power tool and adopt two spiral compression spring vibration dampings because of two inconsistent caused troubles of spiral compression spring parameter, be convenient to have the low-costly and in high volume ground manufacturing of pendulum-type power tool of vibration absorber.
There are thread connection (38) or adhesive attachment between pendulum-type power tool among Fig. 6 (10) driving shaft (70) and the actuator (35).Like this can be with the most conventional thread connection and these two kinds of mechanical attachment modes of adhesive attachment that driving shaft and actuator is low-cost, be linked together reliably.Be provided with simultaneously at least one on the working head receiving terminal (71) of driving shaft (70) and be used for receiving and shape of steady job head element that is connected, the shape element that is connected is the pin (73) that connects with driving shaft (70) interference fit.By the working head receiving terminal (71) at driving shaft (70) pin (73) is set, can will be connected with working head (60) shape mating holes that pin (73) matches (63), realize that pendulum-type power tool works efficiently.
Above measure is that specific embodiment can be selected flexibly according to practice situation to the optimization of the first embodiment with additional.
Claims (12)
1. the pendulum-type power tool that has vibration absorber, in the housing of described pendulum-type power tool, accommodate motor, motor is connected with the driving shaft that is used for the driving working head by the transmission device of reciprocally swinging, drive driving shaft around its axis reciprocally swinging, effect has at least one flexible member of vibration absorber on the actuator of transmission device, the preferred helical spring of flexible member, the first effect end of flexible member can act on the housing, it is characterized in that: the second effect end of described flexible member can act on the supporting surface with the substantially vertical actuator inboard of the swaying direction of transmission device.
2. pendulum-type power tool according to claim 1 is characterized in that: the effect end of described flexible member can act directly on the supporting surface with the substantially vertical housing inboard of the swaying direction of transmission device.
3. pendulum-type power tool according to claim 1, it is characterized in that: the effect end of described flexible member can act on the housing indirectly by transition bracket, and the flexible member supporting surface of transition bracket is substantially vertical with the swaying direction of transmission device.
4. pendulum-type power tool according to claim 1 is characterized in that: the effect end of described flexible member can act directly on the supporting surface of actuator inboard or indirectly act on by the flexible member seat on the supporting surface of actuator inboard.
5. pendulum-type power tool according to claim 1 is characterized in that: at least one effect end of described flexible member can be to housing and the actuator effect of hocketing.
6. according to 5 described pendulum-type power tools in the claim, it is characterized in that: two effect ends of described flexible member all can be to housing and the actuator effect of hocketing.
7. according to 6 described pendulum-type power tools in the claim, it is characterized in that: two supporting surface spacings of described actuator inboard equate with the two elastic elements supporting surface spacing of two supporting surface spacings of housing inboard or transition bracket.
8. according to 4 described pendulum-type power tools in the claim, it is characterized in that: described flexible member seat is provided with step.
9. according to claim 1 and 2 or 3 or 4 or 5 or 6 or 7 described pendulum-type power tools, it is characterized in that: described flexible member is at least part of to be included in the actuator.
10. according to claim 1 and 2 or 3 or 4 or 5 or 6 or 7 described pendulum-type power tools, it is characterized in that: described flexible member is spiral compression spring or helical torsional spring, and quantity only has one.
11. according to claim 1 and 2 or 3 or 4 or 5 or 6 or 7 described pendulum-type power tools, it is characterized in that: have thread connection or adhesive attachment between described driving shaft and the actuator.
12. according to claim 1 and 2 or 3 or 4 or 5 or 6 or 7 described pendulum-type power tools, it is characterized in that: be provided with at least one on the working head receiving terminal of described driving shaft and be used for receive and shape of steady job head element that is connected, the shape element that is connected is preferably the pin that connects with the driving shaft interference fit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220030436 CN202656162U (en) | 2012-01-15 | 2012-01-15 | Pendulant power tool provided with damping device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220030436 CN202656162U (en) | 2012-01-15 | 2012-01-15 | Pendulant power tool provided with damping device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN202656162U true CN202656162U (en) | 2013-01-09 |
Family
ID=47451094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 201220030436 Expired - Fee Related CN202656162U (en) | 2012-01-15 | 2012-01-15 | Pendulant power tool provided with damping device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN202656162U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102554892A (en) * | 2012-01-15 | 2012-07-11 | 胡继宁 | Swing type power tool with damping device |
CN110561355A (en) * | 2018-06-05 | 2019-12-13 | 南京德朔实业有限公司 | Swinging tool |
WO2022048657A1 (en) * | 2020-09-04 | 2022-03-10 | 南京德朔实业有限公司 | Power tool |
-
2012
- 2012-01-15 CN CN 201220030436 patent/CN202656162U/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102554892A (en) * | 2012-01-15 | 2012-07-11 | 胡继宁 | Swing type power tool with damping device |
CN110561355A (en) * | 2018-06-05 | 2019-12-13 | 南京德朔实业有限公司 | Swinging tool |
WO2022048657A1 (en) * | 2020-09-04 | 2022-03-10 | 南京德朔实业有限公司 | Power tool |
US12226887B2 (en) | 2020-09-04 | 2025-02-18 | Nanjing Chervon Industry Co., Ltd. | Power tool |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102554892A (en) | Swing type power tool with damping device | |
CN101235870B (en) | Vibration damper for a hand-held power tool | |
CN202656162U (en) | Pendulant power tool provided with damping device | |
EP2540448A3 (en) | Impact tool | |
JP2008023653A5 (en) | ||
US8415861B2 (en) | Wave power generator | |
CN106232057B (en) | Electric toothbrush and its single charging wire coil | |
CN103689902A (en) | Electric cleaning brush | |
CN201511357U (en) | Swing power tool | |
US10265147B2 (en) | Housing interlock design | |
CN101772401B (en) | Hand-held power tool comprising a spring unit | |
CN205725396U (en) | A kind of linear vibration motor | |
CN101352849B (en) | Working tool | |
CN105818977B (en) | Ultrasonic detection unmanned aerial vehicle based on Internet of things | |
CN215268030U (en) | Linear motor driven buffer mechanism and electric tool | |
US20100117462A1 (en) | Damper Power-Generating System | |
CN203532601U (en) | Arc double-shape spring with power carrying discs | |
CN107588146B (en) | A kind of string formula bump leveller of achievable variation rigidity | |
CN112438819B (en) | Electric toothbrush with shock-absorbing inner support assembly | |
WO2019127364A1 (en) | Transmission device, and face cleansing instrument | |
CN212547619U (en) | Novel fascia rifle of small money | |
CN213331452U (en) | Shock attenuation air compressor | |
CN211023245U (en) | Electric toothbrush with shock-absorbing inner support assembly | |
CN208778182U (en) | Absorbing compressor | |
CN201757040U (en) | Vibration power generation device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang TCH Industrial Co., Ltd. Assignor: Hu Jining Contract record no.: 2013330000288 Denomination of utility model: Swing type power tool with damping device Granted publication date: 20130109 License type: Exclusive License Record date: 20130902 |
|
LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20170115 |