CN112296947A - Slider striking formula electric impact drill - Google Patents
Slider striking formula electric impact drill Download PDFInfo
- Publication number
- CN112296947A CN112296947A CN202010123903.4A CN202010123903A CN112296947A CN 112296947 A CN112296947 A CN 112296947A CN 202010123903 A CN202010123903 A CN 202010123903A CN 112296947 A CN112296947 A CN 112296947A
- Authority
- CN
- China
- Prior art keywords
- impact
- pressure spring
- shell
- vibrator
- bevel gear
- 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.)
- Pending
Links
- 239000000956 alloy Substances 0.000 claims abstract description 31
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims description 17
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000003116 impacting effect Effects 0.000 claims 1
- 230000007246 mechanism Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
Abstract
A slider impact electric impact drill comprising: the device comprises a shell, a rear side handle, a switch, a driving motor, a front side handle, a vibrator, an alloy drill bit, an impact pressure spring, an impact slide block, a rotating cam, a large bevel gear, a small bevel gear, a shaft sleeve and a vibrator reset pressure spring; open the switch, driving motor drives big bevel gear and rotating cam and rotates, and then it is high-speed rotatory to drive the alloy drill bit, rotating cam intermittent type formula contact drives striking slider striking oscillator, the oscillator that is strikeed slides to the front side for the axle sleeve, after striking slider disappears to the impact of oscillator, the oscillator that the compressed resets the pressure spring and automatically drives the oscillator and resets, utilize the slider striking to replace current cylinder impact and realize slider striking formula electric hammer, the problem of current cylinder striking formula electric hammer because of the sealed easy damage of cylinder leads to the frequent trouble of electric hammer is solved.
Description
Technical Field
The invention relates to the technical field of electric tools and electric drills, in particular to a sliding block impact type electric impact drill.
Background
The electric hammer is an electric rotary hammer drill with a safety clutch and a pneumatic hammering mechanism; the electric hammer is based on the principle of piston motion, compresses gas to impact a drill bit, does not need much strength of hand, can open holes of 6-100mm on hard materials such as concrete, bricks, stones and the like, has higher hole opening efficiency on the materials, but cannot open holes on metal;
for example, patent nos.: 2018101866851 discloses an electric hammer, which comprises a reduction box body with a plastic box body and a metal piece, wherein the plastic box body has relatively small density, so that the weight of the reduction box body can be greatly reduced;
however, through research on the existing electric hammer, it is found that under the working condition of large vibration force, the air cylinder of the pneumatic hammering mechanism is driven by the crank slider mechanism, the sealing ring is easy to damage, air leakage is caused after the sealing ring is worn, and then the hammering effect is influenced;
therefore, there is a need to provide an electric hammer without using a pneumatic hammering mechanism to solve the above-mentioned problems.
Disclosure of Invention
Aiming at the problems, the invention provides a sliding block impact type electric impact drill which simultaneously drives an alloy drill bit to rotate and an impact sliding block to intermittently impact a vibrator through a driving motor, so that the alloy drill bit is rotated, meanwhile, the reciprocating hammering motion with the direction perpendicular to the alloy drill bit is also realized, the sliding block impact type electric hammer is realized by utilizing the mutual matching of an impact pressure spring, an impact sliding block and a rotating cam and replacing the existing air cylinder impact through the sliding block impact, and the problem that the existing air cylinder impact type electric hammer is frequently broken due to the easy damage of the air cylinder seal is solved.
The technical scheme adopted by the invention is as follows: a slider impact electric impact drill comprising: the device comprises a shell, a rear side handle, a switch, a driving motor, a front side handle, a vibrator, an alloy drill bit, an impact pressure spring, an impact slide block, a rotating cam, a large bevel gear, a small bevel gear, a shaft sleeve and a vibrator reset pressure spring;
the rear side of the shell is provided with a rear side handle, the rear side handle is provided with a switch, the front side of the shell is provided with a front side handle, a driving motor is arranged in the rear side of the shell, a motor shaft of the driving motor is provided with a rotating cam and a large bevel gear, the large bevel gear is meshed with a small bevel gear, the front end of the small bevel gear is fixedly provided with a shaft sleeve, the shaft sleeve is rotatably arranged at the front end of the shell, the shaft sleeve is connected with the vibrator through a sliding key, and the front end of the vibrator is provided with an alloy drill bit;
the impact sliding block is clamped in a sliding groove of the shell in a sliding manner, one end of the impact pressure spring is fixedly arranged at the inner top of an impact pressure spring cylinder of the shell, the other end of the impact pressure spring is propped against the rear part of the impact sliding block, one end of the oscillator reset pressure spring is attached to a pressure spring chuck of the oscillator, and the other end of the oscillator reset pressure spring is arranged on the inner side of the shell;
the switch is turned on, the driving motor drives the large bevel gear and the rotating cam to rotate, the large bevel gear drives the small bevel gear to rotate rapidly, the small bevel gear drives the vibrator and the alloy drill bit to rotate at a high speed through the shaft sleeve, the rotating cam is in intermittent contact with the striking slider and drives the striking slider to move backwards to compress the striking pressure spring, after the rotating cam is separated from the striking slider, the striking slider is rapidly driven by the compressed striking pressure spring to strike the vibrator, the struck vibrator slides forwards relative to the shaft sleeve, meanwhile, the vibrator resetting pressure spring is compressed, and after the impact force of the striking slider to the vibrator disappears, the compressed vibrator resetting pressure spring automatically drives the vibrator to reset.
Further, the housing further comprises: the motor mounting device comprises a shell, a motor mounting shell and a vibrator mounting shell;
the casing has been seted up the spout in, and the casing rear portion is provided with striking pressure spring section of thick bamboo, and the casing lower part is provided with the motor installation shell, and the casing front portion is provided with the oscillator installation shell.
Further, the vibrator further includes: the metal vibration body, the sliding key groove, the circular boss and the alloy drill bit mounting hole;
the metal shakes the body front end and has seted up alloy drill bit mounting hole, and the alloy drill bit is installed in the alloy drill bit mounting hole, and metal shakes body rear end fixed mounting and has had the ring boss, and it has the slip keyway to open from the ring boss to the pressure spring chuck.
Furthermore, the metal vibration body and the circular boss are both manufactured by 40Cr quenching.
Further, the striking slider includes: the sliding block comprises a sliding block body, a crank contact block, a sliding clamping block and an impact body;
the slider body is the hollow block of rectangle, and its bottom fixed mounting has the striking body, and slider body both sides face is provided with slip joint piece, and the right side inner face of slider body is provided with crank contact piece.
Further, the impact body is made of 45# steel.
Further, the rotating cam includes: a rotating body, a flywheel and an eccentric shaft;
the lower end of the rotating body is connected with a motor shaft of the driving motor, the other end of the rotating body is fixedly connected with the flywheel, an eccentric shaft is arranged at the eccentric position of the flywheel, and the eccentric shaft intermittently contacts and drives the impact sliding block to slide upwards when rotating anticlockwise.
Furthermore, 1-2 impact compression springs are arranged.
Due to the adoption of the technical scheme, the invention has the following advantages:
(1) according to the invention, through the mutual matching of the impact pressure spring, the impact sliding block and the rotating cam, the sliding block impact is used for replacing the existing cylinder impact to realize the sliding block impact type electric hammer, so that the problem that the existing cylinder impact type electric hammer is frequently broken due to the easy damage of the cylinder seal is solved;
(2) according to the invention, the alloy drill bit is driven to rotate by the driving motor and the impact slider intermittently impacts the vibrator, so that the alloy drill bit rotates and reciprocates in a direction perpendicular to the alloy drill bit, the number of motors is reduced, and resources and space are saved;
(3) when the impact slider impacts the vibrator, the vibrator slides towards the front side relative to the shaft sleeve, the vibrator resetting pressure spring is compressed, and after the impact force of the impact slider on the vibrator disappears, the compressed vibrator resetting pressure spring automatically drives the vibrator to reset, so that the electric hammer works more continuously by the technical scheme of automatic resetting, and the working efficiency is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view of the internal structure of the present invention after the housing is hidden from impact with the slider.
Fig. 3 is a partially enlarged view of a portion a of fig. 2 according to the present invention.
Fig. 4 is a schematic view of the internal structure of the bushing of the present invention.
Fig. 5 is a partial structural schematic diagram of the housing of the present invention.
Fig. 6 is a schematic diagram of a specific structure of the vibrator of the present invention.
Fig. 7 is a schematic structural view of the impact slider of the present invention.
Fig. 8 is a schematic structural view of a rotary cam of the present invention.
Reference numerals: 1-a housing; 2-a rear handle; 3, switching; 4-driving the motor; 5-a front side handle; 6-vibrator; a 7-alloy drill bit; 8-impacting a pressure spring; 9-impact slide block; 10-a rotating cam; 11-large bevel gear; 12-bevel pinion gear; 13-shaft sleeve; 14-a vibrator reset pressure spring; 101-a housing; 102-a chute; 103-impact compression spring cylinder; 104-a motor mounting housing; 105-a vibrator mounting case; 601-a metal vibrator; 602-pressure spring chuck; 603-sliding key slot; 604-circular bosses; 605-alloy bit mounting holes; 901-a slider body; 902-crank contact block; 903-a sliding clamping block; 904-impactor; 1001-rotating body; 1002-a flywheel; 1003-eccentric shaft.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in many ways other than those described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit of the invention, and therefore the invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Embodiments, as shown in fig. 1 to 8, a slide impact type electric drill, first of all, it should be emphasized that the electric hammer of the present invention is a slide impact type electric hammer different from the existing cylinder impact type electric hammer, and therefore, it is necessary to clearly inform a user of the working principle of the present invention in advance when using and maintaining the electric hammer, that is: through the mutual cooperation of the impact pressure spring, the impact slide block and the rotating cam, the slide block impact replaces the existing cylinder impact to realize the slide block impact type electric hammer, thereby avoiding improper use or improper maintenance, the invention comprises the following steps: the device comprises a shell 1, a rear side handle 2, a switch 3, a driving motor 4, a front side handle 5, a vibrator 6, an alloy drill 7, an impact compression spring 8, an impact slide block 9, a rotating cam 10, a large bevel gear 11, a small bevel gear 12, a shaft sleeve 13 and a vibrator resetting compression spring 14;
a rear-side handle 2 is arranged at the rear side of a shell 1, a user holds the rear-side handle 2 to control the whole electric hammer, a switch 3 is arranged on the rear-side handle 2, the switch 3 is used for controlling a driving motor 4, a front-side handle 5 is arranged at the front side of the shell 1, the front-side handle 5 is used for assisting in controlling the position of the whole electric hammer, the driving motor 4 is arranged inside the rear side of the shell 1, the driving motor 4 can be connected with an external power supply through a power line, a storage battery can be arranged on the electric hammer in a built-in mode and supplies power to the driving motor 4 through the storage battery, a rotating cam 10 and a large bevel gear 11 are arranged on a motor shaft of the driving motor 4, the large bevel gear 11 is meshed with a small bevel gear 12, a shaft sleeve is fixedly arranged at the front end of the small bevel gear, the;
the impact slide block 9 is slidably clamped in the slide groove 102 of the shell 1, one end of an impact pressure spring 8 is fixedly arranged at the inner top of an impact pressure spring cylinder 103 of the shell 1, and the other end of the impact pressure spring is abutted against the rear part of the impact slide block 9, in the embodiment, 1 impact pressure spring 8 is arranged, actually, the number of the impact pressure springs 8 can be automatically increased or reduced according to the required impact force, the impact pressure spring cylinder 103 is actually used for orienting the impact pressure spring 8, the impact pressure spring 8 is prevented from deviating during compression or extension, one end of a vibrator reset pressure spring 14 is attached to a pressure spring chuck 602 of the vibrator 6, and the other end of the vibrator reset pressure spring 14 is fixedly arranged on the inner side of the shell 1, namely, the vibrator 6 penetrates;
when the vibrator is used, a power supply is switched on, the switch 3 is switched on, the driving motor 4 rotates, and then the large bevel gear 11 and the rotating cam 10 are driven to rotate, and a circle of the large bevel gear 11 can make the small bevel gear 12 rotate more, so the large bevel gear 11 drives the small bevel gear 12 to rotate rapidly, the small bevel gear 12 drives the vibrator 6 and the alloy drill bit 7 to rotate at a high speed through the shaft sleeve 13, meanwhile, the driving motor 4 drives the rotating cam 10 to rotate, the rotating cam 10 is contacted intermittently and drives the impact sliding block 9 to move backwards and compress the impact pressure spring 8, the compressed impact pressure spring 8 can generate reset spring force, after the rotating cam 10 is separated from the impact sliding block 9, the compressed impact pressure spring 8 rapidly drives the impact sliding block 9 to impact the vibrator 6, the impacted vibrator 6 slides forwards relative to the shaft sleeve 13, and the vibrator reset pressure spring 14 is compressed, and when the impact force of the impact sliding, the compressed oscillator reset pressure spring 14 automatically drives the oscillator 6 to reset, and the technical scheme of automatic reset enables the electric hammer to work more continuously, so that the working efficiency is improved.
In an alternative embodiment of the present invention, as shown in fig. 5, the housing 1 includes, in addition to the same components as in the previous embodiment: a housing 101, a motor mounting case 104, and a vibrator mounting case 105;
the vibrator is characterized in that a sliding groove 102 is formed in the shell 101, an impact pressure spring cylinder 103 is arranged at the rear of the shell 101, a motor mounting shell 104 is arranged at the lower portion of the shell 101, a vibrator mounting shell 105 is arranged at the front of the shell 101, the impact pressure spring cylinder 103 provides fixing and guiding effects for an impact pressure spring 8, the motor mounting shell 104 can well fix and mount the driving motor 4, and the vibrator mounting shell 105 protects the vibrator 6.
In an alternative embodiment of the present invention, as shown in fig. 6, the vibrator 6 includes, in addition to the same components as those of the previous embodiment: the metal vibrator 601, the sliding key groove 603, the circular ring boss 604 and the alloy drill bit mounting hole 605;
the metal body 601 that shakes is the cylinder, alloy drill bit mounting hole 605 has been seted up to its front end, alloy drill bit 7 detachable fixed mounting is in alloy drill bit mounting hole 605, make things convenient for not the alloy drill bit 7 of equidimension to change, metal body 601 rear end fixed mounting that shakes has ring boss 604, the diameter of ring boss 604 is greater than the diameter of the metal body 601 that shakes, in order to enlarge the area that can accept the striking slider 9 striking, avoid striking slider 9 to hit empty, a slip keyway 603 has been seted up on the metal body 601 surface that shakes from ring boss 604 below to pressure spring chuck 602 top department, metal body 601 and ring boss 604 all adopt 40Cr quenching preparation to form, the intensity of oscillator 6 has been improved, service life has been prolonged.
In an alternative embodiment of the invention, shown in fig. 7-8, the striking slider 9 comprises, apart from the same parts as in the previous embodiment: a slider body 901, a crank contact block 902, a sliding clamping block 903 and an impact body 904; the rotary cam 10 includes: a rotating body 1001, a flywheel 1002, and an eccentric shaft 1003;
the slider body 901 is a rectangular hollow block, the eccentric shaft 1003 anticlockwise rotates in a rectangular hollow hole of the slider body 901, the bottom of the slider body 901 is fixedly provided with an impact body 904, the impact body 904 is made of 45# steel, the service life is prolonged, two side faces of the slider body 901 are provided with sliding clamping blocks 903, and the inner face of the right side of the slider body 901 is provided with a crank contact block 902; the rotator 1001 lower extreme is connected with driving motor 4's motor shaft, the other end and flywheel 1002 fixed connection, the eccentric department of flywheel 1002 is provided with eccentric shaft 1003, intermittent type formula contact crank contact block 902 and drive striking slider 9 upwards slip when eccentric shaft 1003 anticlockwise rotates, the striking pressure spring 8 of compressed can produce the reset spring force, after eccentric shaft 1003 and crank contact block 902 separated, striking slider 9 striking oscillator 6 is driven fast to the striking pressure spring 8 of compressed, so relapse, realize striking slider 9 continuous hammering oscillator 6.
Claims (8)
1. The utility model provides a slider striking formula electric impact drill which characterized in that includes: the device comprises a shell (1), a rear side handle (2), a switch (3), a driving motor (4), a front side handle (5), a vibrator (6), an alloy drill bit (7), an impact pressure spring (8), an impact sliding block (9), a rotating cam (10), a large bevel gear (11), a small bevel gear (12), a shaft sleeve (13) and a vibrator reset pressure spring (14);
a rear-side handle (2) is arranged on the rear side of the shell (1), a switch (3) is arranged on the rear-side handle (2), a front-side handle (5) is arranged on the front side of the shell (1), a driving motor (4) is arranged inside the rear side of the shell (1), a rotating cam (10) and a large bevel gear (11) are mounted on a motor shaft of the driving motor (4), the large bevel gear (11) is meshed with a small bevel gear (12), a shaft sleeve (13) is fixedly mounted at the front end of the small bevel gear (12), the shaft sleeve (13) is rotatably mounted at the front end of the shell (1), the shaft sleeve (13) is connected with the vibrator (6) through a sliding key, and an alloy drill bit (7) is mounted at the front end of the vibrator (6);
the impact sliding block (9) is connected in a sliding groove (102) of the shell (1) in a sliding and clamping mode, one end of the impact pressure spring (8) is fixedly installed at the inner top of an impact pressure spring cylinder (103) of the shell (1), the other end of the impact pressure spring is propped against the rear portion of the impact sliding block (9), one end of the oscillator resetting pressure spring (14) is attached to a pressure spring chuck (602) of the oscillator (6), and the other end of the oscillator resetting pressure spring is installed on the inner side of the shell (1);
the switch (3) is turned on, the driving motor (4) drives the large bevel gear (11) and the rotating cam (10) to rotate, the large bevel gear (11) drives the small bevel gear (12) to rotate rapidly, the small bevel gear (12) drives the vibrator (6) and the alloy drill bit (7) to rotate at a high speed through the shaft sleeve (13), the rotating cam (10) intermittently contacts and drives the impact slide block (9) to move backwards to compress the impact pressure spring (8), when the rotating cam (10) is separated from the impact slider (9), the compressed impact pressure spring (8) rapidly drives the impact slider (9) to impact the vibrator (6), the impacted vibrator (6) slides towards the front side relative to the shaft sleeve (13), meanwhile, the oscillator resetting pressure spring (14) is compressed, when the impact force of the impact slide block (9) to the oscillator (6) disappears, the compressed oscillator reset pressure spring (14) automatically drives the oscillator (6) to reset.
2. A slide impact electric impact drill according to claim 1, characterized in that the housing (1) further comprises: the motor comprises a shell (101), a motor mounting shell (104) and a vibrator mounting shell (105);
a sliding groove (102) is formed in the shell (101), an impact pressure spring cylinder (103) is communicated with the top of the shell (101), a motor mounting shell (104) is communicated with the side face, close to the top, of the shell (101), and a vibrator mounting shell (105) is arranged on the front portion of the shell (101).
3. A slider impact electric impact drill according to claim 1, characterized in that the vibrator (6) further comprises: the metal vibration body (601), the sliding key groove (603), the circular boss (604) and the alloy drill bit mounting hole (605);
an alloy drill bit mounting hole (605) is formed in the front end of the metal vibration body (601), an alloy drill bit (7) is mounted in the alloy drill bit mounting hole (605), a circular ring boss (604) is fixedly mounted at the rear end of the metal vibration body (601), and a sliding key groove (603) is formed from the circular ring boss (604) to the pressure spring chuck (602).
4. The slide impact electric impact drill according to claim 3, wherein the metal vibrator (601) and the circular boss (604) are both made by 40Cr quenching.
5. A slide impact electric impact drill according to claim 1, characterized in that the impact slide (9) comprises: the sliding block comprises a sliding block body (901), a crank contact block (902), a sliding clamping block (903) and an impact body (904);
the slider body (901) is a rectangular hollow block, an impact body (904) is fixedly mounted at the bottom of the rectangular hollow block, sliding clamping blocks (903) are arranged on two side faces of the slider body (901), and a crank contact block (902) is arranged on the inner face of the right side of the slider body (901).
6. The electric impact drill according to claim 5, characterized in that the impact body (904) is made of 45# steel.
7. A slide impact electric impact drill according to claim 1, characterized in that the rotary cam (10) comprises: a rotating body (1001), a flywheel (1002), and an eccentric shaft (1003);
the lower end of the rotating body (1001) is connected with a motor shaft of the driving motor (4), the other end of the rotating body is fixedly connected with the flywheel (1002), an eccentric shaft (1003) is arranged at the eccentric position of the flywheel (1002), and the eccentric shaft (1003) intermittently contacts and drives the impacting sliding block (9) to slide upwards when rotating anticlockwise.
8. A slide impact electric drill according to any one of claims 1 to 7, characterised in that the impact compression spring (8) is provided in 1 to 2 pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010123903.4A CN112296947A (en) | 2020-02-27 | 2020-02-27 | Slider striking formula electric impact drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010123903.4A CN112296947A (en) | 2020-02-27 | 2020-02-27 | Slider striking formula electric impact drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112296947A true CN112296947A (en) | 2021-02-02 |
Family
ID=74336344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010123903.4A Pending CN112296947A (en) | 2020-02-27 | 2020-02-27 | Slider striking formula electric impact drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112296947A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114473964A (en) * | 2022-03-09 | 2022-05-13 | 永康市晓诚电器有限公司 | Electric hammer with protective structure and using method of electric hammer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4442906A (en) * | 1980-11-18 | 1984-04-17 | Black & Decker Inc. | Percussive drills |
| US5025869A (en) * | 1988-09-30 | 1991-06-25 | Hitachi Koki Company, Limited | Impact drill |
| CN2491193Y (en) * | 2001-06-13 | 2002-05-15 | 王子华 | Driving gear of generating impact output |
| CN1663748A (en) * | 2005-04-12 | 2005-09-07 | 贺启宇 | Low-noise strong-impact weak-recoil electric hammer drill |
| CN1693034A (en) * | 2004-05-07 | 2005-11-09 | 罗伯特·博世有限公司 | Hand machine tool with a hammer mechanism |
| CN1846946A (en) * | 2005-04-11 | 2006-10-18 | 日立工机株式会社 | Impact tool |
| CN102451928A (en) * | 2010-10-22 | 2012-05-16 | 喜利得股份公司 | Machine tool |
| CN104519813A (en) * | 2010-12-29 | 2015-04-15 | 澳擞技术有限责任公司 | Electric motor driven tool for orthopedic impacting |
-
2020
- 2020-02-27 CN CN202010123903.4A patent/CN112296947A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4442906A (en) * | 1980-11-18 | 1984-04-17 | Black & Decker Inc. | Percussive drills |
| US5025869A (en) * | 1988-09-30 | 1991-06-25 | Hitachi Koki Company, Limited | Impact drill |
| CN2491193Y (en) * | 2001-06-13 | 2002-05-15 | 王子华 | Driving gear of generating impact output |
| CN1693034A (en) * | 2004-05-07 | 2005-11-09 | 罗伯特·博世有限公司 | Hand machine tool with a hammer mechanism |
| CN1846946A (en) * | 2005-04-11 | 2006-10-18 | 日立工机株式会社 | Impact tool |
| CN1663748A (en) * | 2005-04-12 | 2005-09-07 | 贺启宇 | Low-noise strong-impact weak-recoil electric hammer drill |
| CN102451928A (en) * | 2010-10-22 | 2012-05-16 | 喜利得股份公司 | Machine tool |
| CN104519813A (en) * | 2010-12-29 | 2015-04-15 | 澳擞技术有限责任公司 | Electric motor driven tool for orthopedic impacting |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114473964A (en) * | 2022-03-09 | 2022-05-13 | 永康市晓诚电器有限公司 | Electric hammer with protective structure and using method of electric hammer |
| CN114473964B (en) * | 2022-03-09 | 2023-03-31 | 永康市晓诚电器有限公司 | Electric hammer with protective structure and using method of electric hammer |
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