CN107876834A - A kind of high stability hand held electric drill for being easily changed drill bit - Google Patents
A kind of high stability hand held electric drill for being easily changed drill bit Download PDFInfo
- Publication number
- CN107876834A CN107876834A CN201711069438.5A CN201711069438A CN107876834A CN 107876834 A CN107876834 A CN 107876834A CN 201711069438 A CN201711069438 A CN 201711069438A CN 107876834 A CN107876834 A CN 107876834A
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- China
- Prior art keywords
- drill bit
- clamping
- inner sleeve
- outside
- high stability
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/02—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/12—Adapters for drills or chucks; Tapered sleeves
Abstract
The invention provides a kind of high stability hand held electric drill for being easily changed drill bit, including chuck, fuselage and drill bit, chuck includes securing device, locked instrument and attachment means；Securing device includes support set, clutch shaft bearing and the shell being sequentially sleeved at from inside to outside outside drill bit；Clamping device includes clamping head, second bearing, pushing sleeve, guide rod, locker plate, cylinder and the piston being arranged in cylinder；Attachment means include connecting cylinder.Compared with prior art, the beneficial effects of the present invention are：Can effectively it be consolidated on front side of the rear end of drill bit by securing device, by adjusting top cover so that inner sleeve and overcoat can in opposite directions or counter motion, when realizing move toward one another, inner sleeve can inwardly shrink clamping drill bit, so as to play firm effect, and during counter motion, inner sleeve can unclamp drill bit, facilitate dismounting and change；Using locked instrument, clamping lobe can shrink clamping drill bit radially inward in the presence of the conical surface on the inside of locker plate, convenient to drill bit installation and dismounting and change.
Description
Technical field
The present invention relates to power tools technology field, more particularly to a kind of high stability hand-held electricity for being easily changed drill bit
Bore.
Background technology
Electric drill operation principle is that the rotor of electromagnetic rotating formula or electromagnetic reciprocating low capacity motor does magnetic field intercepts
Acting operating, apparatus for work is driven by transmission mechanism, the power of drill bit is increased with moving gear, so that drill bit scrapings body surface
Face, preferably pierce object.Electric drill can be divided into 3 classes：Electric hand drill, impact drill, hammer drill.1. electric hand drill：Power is minimum, use range
It is only limitted to bore wood and when an electric screwdriver is used, part electric hand drill can make specialist tools into according to purposes, and purposes and model are more；
2. impact drill：The beater mechanism of electric impact drill has two kinds of dog and ball-type；3. hammer drill (electric hammer)：Can be in a variety of hard materials
Upper drill hole, use range are most wide.This 3 kinds of electric drill prices arrange from low to high, and function also increases therewith, respective from combination is needed
The scope of application and requirement.
At present, existing electric drill, if drill bit is not mounted to position, easy run-off the straight, causes to bore after drill bit was changed
It is broken during hole, in addition, existing electric drill more bit change mode is single, replacing efficiency is low, and changes quality and be difficult to protect
Card.
The content of the invention
To solve the above problems, the invention discloses a kind of high stability hand held electric drill for being easily changed drill bit.
In order to reach object above, the present invention provides following technical scheme：
A kind of high stability hand held electric drill for being easily changed drill bit, including chuck, fuselage and drill bit, it is characterised in that：
The chuck includes securing device, locked instrument and attachment means；The securing device includes being sequentially sleeved at brill from inside to outside
Support set, clutch shaft bearing and shell outside head, the support set include the inside and outside inner sleeve set and overcoat, and the inner sleeve band is tapered,
And inner sleeve top outer is arranged with regulation top cover, the overcoat is adapted with the conical surface on the outside of inner sleeve, and is pushed up on the outside of epimere with regulation
Lid threaded connection, the inner ring of the clutch shaft bearing are fixedly connected with overcoat, and outer ring is fixedly connected with shell, the overcoat and shell
Rotation connection, the outer casing bottom are provided with annular protrusion；The clamping device includes clamping head, second bearing, pushing sleeve, guiding
Bar, locker plate, cylinder and the piston being arranged in cylinder, the clamping head include rotary barrel and be connected to rotary barrel top by
The clamping section that at least two clamping lobes are formed, the rotary barrel is cylindrical, and its inner side is adapted with drill bit, and bottom is driven by fuselage
Dynamic, the clamping lobe is distributed in the circumferential direction on rotary barrel top, and each clamping lobe can be elastically deformed in the radial direction, and interior
Side is that outside is the conical surface for clamping drill bit, the through hole being adapted with rotary barrel is provided with the pushing sleeve, and rotatably support
In piston, the locker plate is provided with the internal taper hole being adapted with the male cone (strobilus masculinus) of clamping section, and is slidably disposed in cylinder
In inner chamber, the rotary barrel of the clamping head is connected in the through hole of pushing sleeve, and clamping section is placed in the internal taper hole of locker plate, described to lead
To at least two, bar, it is distributed at the top of pushing sleeve, one end of the guide rod is connected with locker plate, and the other end connects with pushing sleeve bottom
Connect；The attachment means include connecting cylinder, and the top inner side of the connecting cylinder and the annular protrusion outside screw of outer casing bottom connect
Connect, be connected on the inside of bottom with cylinder top outside screw.
Further, the taper of the inner sleeve is 1: 15.
Further, the inner sleeve is resilient sleeve.
Further, the clutch shaft bearing is double-row conical bearing.
Further, it is respectively equipped with dust ring between the overcoat both ends and shell.
Further, it is provided with the first skid resistant course on the inside of the clamping lobe.
Further, it is provided with the second skid resistant course on the inside of the inner sleeve.
Further, the first external screw thread is provided with the outside of the overcoat epimere, first is provided with the inside of the regulation top cover hypomere
Internal thread, first external screw thread are adapted with the first internal thread.
Compared with prior art, the beneficial effects of the present invention are：The rear end of drill bit can be effectively consolidated by securing device
Front side, by adjusting top cover so that inner sleeve and overcoat can in opposite directions or counter motion, with reference to inner sleeve and the inclined plane of overcoat, reality
During existing move toward one another, inner sleeve can inwardly shrink clamping drill bit, and so as to play firm effect, and during counter motion, inner sleeve can unclamp
Drill bit, facilitate dismounting and change；Using locked instrument, by cylinder, can be existed by the clamping lobe of pushing sleeve promotion clamping head, clamping lobe
Clamping drill bit can be shunk radially inward in the presence of the conical surface on the inside of locker plate, and during reverse operating cylinder, clamping lobe is in elasticity
Restored to the original state in the presence of power, unclamp drill bit, so as to convenient to drill bit installation and dismounting and change；It will can be consolidated by attachment means
Device is connected with locked instrument so that securing device can form entirety with locked instrument, improve lock of the overall chuck to drill bit
Gu the and stable surname of work.
Brief description of the drawings
Fig. 1 is the structural representation after a kind of high stability hand held electric drill installation drill bit for being easily changed drill bit of the present invention
Figure.
Fig. 2 is the structural representation of securing device in a kind of high stability hand held electric drill for being easily changed drill bit of the present invention
Figure.
Fig. 3 is the structural representation of locked instrument in a kind of high stability hand held electric drill for being easily changed drill bit of the present invention
Figure.
Fig. 4 is the structural representation of attachment means in a kind of high stability hand held electric drill for being easily changed drill bit of the present invention
Figure.
Fig. 5 is the structural representation after a kind of each component combination of high stability hand held electric drill for being easily changed drill bit of the present invention
Figure.
Reference numerals list：
1- chucks, 2- fuselages, 3- drill bits, 4- support sets, 41- inner sleeves, 42- overcoats, 43- regulation top covers, 5- clutch shaft bearings, 6-
Shell, 7- annular protrusions, 8- clamping heads, 81- rotary barrels, 82- clamping lobes, 9- second bearings, 10- pushing sleeves, 11- guide rods, 12-
Locker plate, 13- cylinders, 14- pistons, 15- connecting cylinders, 16- dust rings, the skid resistant courses of 17- first, the skid resistant courses of 18- second.
Embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated, it should be understood that following embodiments are only
For illustrating the present invention rather than limitation the scope of the present invention.It should be noted that the word " preceding " used below in description,
" rear ", "left", "right", "up" and "down" refer to the direction in accompanying drawing, and word " interior " and " outer " refer respectively to direction or remote
From the direction of particular elements geometric center.
Embodiment 1
A kind of high stability hand held electric drill for being easily changed drill bit, including chuck 1, fuselage 2 and drill bit 3, the chuck 1
Including securing device, locked instrument and attachment means；The securing device includes the support being sequentially sleeved at from inside to outside outside drill bit 3
Set 4, clutch shaft bearing 5 and shell 6, the support set 4 include the inside and outside inner sleeve 41 set and overcoat 42, and the inner sleeve 41 is with cone
Degree, and the top outer of inner sleeve 41 is arranged with regulation top cover 43, the overcoat 42 is adapted with the outside conical surface of inner sleeve 41, and outside epimere
Side is threadedly coupled with regulation top cover 43, and the inner ring of the clutch shaft bearing 5 is fixedly connected with overcoat 42, and outer ring is fixed with shell 6 to be connected
Connect, the overcoat 42 is rotatablely connected with shell 6, and the bottom of shell 6 is provided with annular protrusion 7；The clamping device includes clamping
First 8, second bearing 9, pushing sleeve 10, guide rod 11, locker plate 12, cylinder 13 and the piston 14 being arranged in cylinder 13, the folder
Tight first 8 include rotary barrel 81 and are connected to the clamping section being made up of at least two clamping lobes 82 on the top of rotary barrel 81, the rotation
Turning barrel 81 is cylindrical, and its inner side is adapted with drill bit 3, and bottom is driven by fuselage 2, and the clamping lobe 82 is distributed on rotary barrel 81
In the circumferential direction on top, each clamping lobe 82 can be elastically deformed in the radial direction, and inner side is for clamping drill bit 3, outside
For the conical surface, the pushing sleeve 10 is interior to be provided with the through hole being adapted with rotary barrel 81, and is rotatably supported in piston 14, the lock
Clamping plate 12 is provided with the internal taper hole being adapted with the male cone (strobilus masculinus) of clamping section, and is slidably disposed in the inner chamber of cylinder 13, described
The rotary barrel 81 of clamping head 8 is connected in the through hole of pushing sleeve 10, and clamping section is placed in the internal taper hole of locker plate 12, the guide rod
11 at least two, the top of pushing sleeve 10 is distributed on, one end of the guide rod 11 is connected with locker plate 12, the other end and pushing sleeve 10
Bottom connects；The attachment means include connecting cylinder 15, the top inner side of the connecting cylinder 15 and the annular protrusion of the bottom of shell 6
Outside screw connects, and is threadedly coupled on the inside of bottom with the apical lateral of cylinder 13.
During work, the rear end front side of drill bit 3 can be effectively consolidated by securing device, passes through and rotates regulation top cover 43 so that
Inner sleeve 41 and overcoat 42 can in opposite directions or counter motion, the inclined plane with reference to interior 41 sets with overcoat 42 are interior when realizing move toward one another
Set 41, which can inwardly shrink, clamps drill bit 3, and so as to play firm effect, and during counter motion, inner sleeve 41 can unclamp drill bit 3, convenient
Dismounting and change；Using locked instrument, by cylinder 13, can be existed by the clamping lobe 82 of the promotion clamping head 8 of pushing sleeve 10, clamping lobe 82
It can radially inward be shunk in the presence of the inner side conical surface of locker plate 12 and clamp drill bit 3, and during reverse operating cylinder 13, clamping lobe 82
Restored to the original state in the presence of elastic force, unclamp drill bit 3, so that convenience is installed by drill bit 3 and dismounting and change；Pass through attachment means
Securing device can be connected with locked instrument so that securing device can form entirety with locked instrument, improve overall chuck pair
The stable surname of locking and the work of drill bit 3.
In the present embodiment, the taper of the inner sleeve 41 is 1: 15, and inner sleeve 41 is resilient sleeve.
In the present embodiment, the clutch shaft bearing 5 is double-row conical bearing.
In the present embodiment, dust ring 16 is respectively equipped between the both ends of overcoat 42 and shell 6, protection shell 6 can be played
Interior clutch shaft bearing 5 will not be invaded by dust, ensure the stability and security of work.
Embodiment 2
A kind of high stability hand held electric drill for being easily changed drill bit, including chuck 1, fuselage 2 and drill bit 3, the chuck 1
Including securing device, locked instrument and attachment means；The securing device includes the support being sequentially sleeved at from inside to outside outside drill bit 3
Set 4, clutch shaft bearing 5 and shell 6, the support set 4 include the inside and outside inner sleeve 41 set and overcoat 42, and the inner sleeve 41 is with cone
Degree, and the top outer of inner sleeve 41 is arranged with regulation top cover 43, the overcoat 42 is adapted with the outside conical surface of inner sleeve 41, and outside epimere
Side is threadedly coupled with regulation top cover 43, and the inner ring of the clutch shaft bearing 5 is fixedly connected with overcoat 42, and outer ring is fixed with shell 6 to be connected
Connect, the overcoat 42 is rotatablely connected with shell 6, and the bottom of shell 6 is provided with annular protrusion 7；The clamping device includes clamping
First 8, second bearing 9, pushing sleeve 10, guide rod 11, locker plate 12, cylinder 13 and the piston 14 being arranged in cylinder 13, the folder
Tight first 8 include rotary barrel 81 and are connected to the clamping section being made up of at least two clamping lobes 82 on the top of rotary barrel 81, the rotation
Turning barrel 81 is cylindrical, and its inner side is adapted with drill bit 3, and bottom is driven by fuselage 2, and the clamping lobe 82 is distributed on rotary barrel 81
In the circumferential direction on top, each clamping lobe 82 can be elastically deformed in the radial direction, and inner side is for clamping drill bit 3, outside
For the conical surface, the pushing sleeve 10 is interior to be provided with the through hole being adapted with rotary barrel 81, and is rotatably supported in piston 14, the lock
Clamping plate 12 is provided with the internal taper hole being adapted with the male cone (strobilus masculinus) of clamping section, and is slidably disposed in the inner chamber of cylinder 13, described
The rotary barrel 81 of clamping head 8 is connected in the through hole of pushing sleeve 10, and clamping section is placed in the internal taper hole of locker plate 12, the guide rod
11 at least two, the top of pushing sleeve 10 is distributed on, one end of the guide rod 11 is connected with locker plate 12, the other end and pushing sleeve 10
Bottom connects；The attachment means include connecting cylinder 15, the top inner side of the connecting cylinder 15 and the annular protrusion of the bottom of shell 6
Outside screw connects, and is threadedly coupled on the inside of bottom with the apical lateral of cylinder 13.
During work, the rear end front side of drill bit 3 can be effectively consolidated by securing device, passes through and rotates regulation top cover 43 so that
Inner sleeve 41 and overcoat 42 can in opposite directions or counter motion, the inclined plane with reference to interior 41 sets with overcoat 42 are interior when realizing move toward one another
Set 41, which can inwardly shrink, clamps drill bit 3, and so as to play firm effect, and during counter motion, inner sleeve 41 can unclamp drill bit 3, convenient
Dismounting and change；Using locked instrument, by cylinder 13, can be existed by the clamping lobe 82 of the promotion clamping head 8 of pushing sleeve 10, clamping lobe 82
It can radially inward be shunk in the presence of the inner side conical surface of locker plate 12 and clamp drill bit 3, and during reverse operating cylinder 13, clamping lobe 82
Restored to the original state in the presence of elastic force, unclamp drill bit 3, so that convenience is installed by drill bit 3 and dismounting and change；Pass through attachment means
Securing device can be connected with locked instrument so that securing device can form entirety with locked instrument, improve overall chuck pair
The stable surname of locking and the work of drill bit 3.
In the present embodiment, the taper of the inner sleeve 41 is 1: 15, and inner sleeve 41 is resilient sleeve.
In the present embodiment, the clutch shaft bearing 5 is double-row conical bearing.
In the present embodiment, dust ring 16 is respectively equipped between the both ends of overcoat 42 and shell 6, protection shell 6 can be played
Interior clutch shaft bearing 5 will not be invaded by dust, ensure the stability and security of work.
In the present embodiment, the inner side of clamping lobe 82 is provided with the first skid resistant course 17, and the inner side of inner sleeve 41 is provided with second
Skid resistant course 18, it can stablize and clamp drill bit 3, prevent drill bit 3 from being shaken in rotation process.
Embodiment 3
A kind of high stability hand held electric drill for being easily changed drill bit, including chuck 1, fuselage 2 and drill bit 3, the chuck 1
Including securing device, locked instrument and attachment means；The securing device includes the support being sequentially sleeved at from inside to outside outside drill bit 3
Set 4, clutch shaft bearing 5 and shell 6, the support set 4 include the inside and outside inner sleeve 41 set and overcoat 42, and the inner sleeve 41 is with cone
Degree, and the top outer of inner sleeve 41 is arranged with regulation top cover 43, the overcoat 42 is adapted with the outside conical surface of inner sleeve 41, and outside epimere
Side is threadedly coupled with regulation top cover 43, and the inner ring of the clutch shaft bearing 5 is fixedly connected with overcoat 42, and outer ring is fixed with shell 6 to be connected
Connect, the overcoat 42 is rotatablely connected with shell 6, and the bottom of shell 6 is provided with annular protrusion 7；The clamping device includes clamping
First 8, second bearing 9, pushing sleeve 10, guide rod 11, locker plate 12, cylinder 13 and the piston 14 being arranged in cylinder 13, the folder
Tight first 8 include rotary barrel 81 and are connected to the clamping section being made up of at least two clamping lobes 82 on the top of rotary barrel 81, the rotation
Turning barrel 81 is cylindrical, and its inner side is adapted with drill bit 3, and bottom is driven by fuselage 2, and the clamping lobe 82 is distributed on rotary barrel 81
In the circumferential direction on top, each clamping lobe 82 can be elastically deformed in the radial direction, and inner side is for clamping drill bit 3, outside
For the conical surface, the pushing sleeve 10 is interior to be provided with the through hole being adapted with rotary barrel 81, and is rotatably supported in piston 14, the lock
Clamping plate 12 is provided with the internal taper hole being adapted with the male cone (strobilus masculinus) of clamping section, and is slidably disposed in the inner chamber of cylinder 13, described
The rotary barrel 81 of clamping head 8 is connected in the through hole of pushing sleeve 10, and clamping section is placed in the internal taper hole of locker plate 12, the guide rod
11 at least two, the top of pushing sleeve 10 is distributed on, one end of the guide rod 11 is connected with locker plate 12, the other end and pushing sleeve 10
Bottom connects；The attachment means include connecting cylinder 15, the top inner side of the connecting cylinder 15 and the annular protrusion of the bottom of shell 6
Outside screw connects, and is threadedly coupled on the inside of bottom with the apical lateral of cylinder 13.
During work, the rear end front side of drill bit 3 can be effectively consolidated by securing device, passes through and rotates regulation top cover 43 so that
Inner sleeve 41 and overcoat 42 can in opposite directions or counter motion, the inclined plane with reference to interior 41 sets with overcoat 42 are interior when realizing move toward one another
Set 41, which can inwardly shrink, clamps drill bit 3, and so as to play firm effect, and during counter motion, inner sleeve 41 can unclamp drill bit 3, convenient
Dismounting and change；Using locked instrument, by cylinder 13, can be existed by the clamping lobe 82 of the promotion clamping head 8 of pushing sleeve 10, clamping lobe 82
It can radially inward be shunk in the presence of the inner side conical surface of locker plate 12 and clamp drill bit 3, and during reverse operating cylinder 13, clamping lobe 82
Restored to the original state in the presence of elastic force, unclamp drill bit 3, so that convenience is installed by drill bit 3 and dismounting and change；Pass through attachment means
Securing device can be connected with locked instrument so that securing device can form entirety with locked instrument, improve overall chuck pair
The stable surname of locking and the work of drill bit 3.
In the present embodiment, the taper of the inner sleeve 41 is 1: 15, and inner sleeve 41 is resilient sleeve.
In the present embodiment, the clutch shaft bearing 5 is double-row conical bearing.
In the present embodiment, dust ring 16 is respectively equipped between the both ends of overcoat 42 and shell 6, protection shell 6 can be played
Interior clutch shaft bearing 5 will not be invaded by dust, ensure the stability and security of work.
In the present embodiment, the inner side of clamping lobe 82 is provided with the first skid resistant course 17, and the inner side of inner sleeve 41 is provided with second
Skid resistant course 18, it can stablize and clamp drill bit 3, prevent drill bit 3 from being shaken in rotation process.
In the present embodiment, the first external screw thread, the regulation top cover 43 hypomere inner side are provided with the outside of the epimere of overcoat 42
Provided with the first internal thread, first external screw thread is adapted with the first internal thread.And then top cover 43 conveniently is adjusted by rotating, it is real
Now to inner sleeve 41 and the relative motion state of overcoat 42.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned embodiment, in addition to
Formed technical scheme is combined by above technical characteristic.It should be pointed out that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (8)
1. a kind of high stability hand held electric drill for being easily changed drill bit, including chuck (1), fuselage (2) and drill bit (3), it is special
Sign is：The chuck (1) includes securing device, locked instrument and attachment means；The securing device include from inside to outside according to
Secondary to be set in support set (4), clutch shaft bearing (5) and the shell (6) of drill bit (3) outside, the support set (4) includes the inside and outside inner sleeve set
(41) and overcoat (42), the inner sleeve (41) is with tapered, and inner sleeve (41) top outer is arranged with regulation top cover (43), described
Overcoat (42) is adapted with the conical surface on the outside of inner sleeve (41), and is threadedly coupled on the outside of epimere with regulation top cover (43), the first axle
The inner ring for holding (5) is fixedly connected with overcoat (42), and outer ring is fixedly connected with shell (6), and the overcoat (42) rotates with shell (6)
Connection, shell (6) bottom is provided with annular protrusion (7)；The clamping device includes clamping head (8), second bearing (9), pushed away
Cover (10), guide rod (11), locker plate (12), cylinder (13) and the piston (14) being arranged in cylinder (13), the clamping head
(8) include rotary barrel (81) and be connected to the clamping section being made up of at least two clamping lobes (82) on rotary barrel (81) top, institute
It is cylindrical to state rotary barrel (81), its inner side is adapted with drill bit (3), and bottom is driven by fuselage (2), and the clamping lobe (82) is equal
In the circumferential direction on rotary barrel (81) top, each clamping lobe (82) can be elastically deformed in the radial direction cloth, and inner side is use
In clamping drill bit (3), outside is the conical surface, and the through hole being adapted with rotary barrel (81) is provided with the pushing sleeve (10), and rotatably
Be supported in piston (14), the locker plate (12) is provided with the internal taper hole being adapted with the male cone (strobilus masculinus) of clamping section, and can slide
Dynamic is arranged in cylinder (13) inner chamber, and the rotary barrel (81) of the clamping head (8) is connected in the through hole of pushing sleeve (10), is clamped
Portion is placed in the internal taper hole of locker plate (12), the guide rod (11) at least two, is distributed at the top of pushing sleeve (10), described to lead
It is connected to one end of bar (11) with locker plate (12), the other end is connected with pushing sleeve (10) bottom；The attachment means include connection
Cylinder (15), the top inner side of the connecting cylinder (15) be connected with the annular protrusion outside screw of shell (6) bottom, bottom inner side and
Cylinder (13) apical lateral is threadedly coupled.
A kind of 2. high stability hand held electric drill for being easily changed drill bit according to claim 1, it is characterised in that：It is described
The taper of inner sleeve (41) is 1: 15.
A kind of 3. high stability hand held electric drill for being easily changed drill bit according to claim 2, it is characterised in that：It is described
Inner sleeve (41) is resilient sleeve.
A kind of 4. high stability hand held electric drill for being easily changed drill bit according to claim 1, it is characterised in that：It is described
Clutch shaft bearing (5) is double-row conical bearing.
A kind of 5. high stability hand held electric drill for being easily changed drill bit according to claim 1, it is characterised in that：It is described
Dust ring (16) is respectively equipped between overcoat (42) both ends and shell (6).
A kind of 6. high stability hand held electric drill for being easily changed drill bit according to claim 1, it is characterised in that：It is described
The first skid resistant course (17) is provided with the inside of clamping lobe (82).
A kind of 7. high stability hand held electric drill for being easily changed drill bit according to claim 1, it is characterised in that：It is described
The second skid resistant course (18) is provided with the inside of inner sleeve (41).
A kind of 8. high stability hand held electric drill for being easily changed drill bit according to claim 1, it is characterised in that：It is described
Being provided with the first external screw thread on the outside of overcoat (42) epimere, regulation top cover (43) hypomere inner side is provided with the first internal thread, and described the
One external screw thread is adapted with the first internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711069438.5A CN107876834B (en) | 2017-11-03 | 2017-11-03 | A kind of high stability hand held electric drill being easily changed drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711069438.5A CN107876834B (en) | 2017-11-03 | 2017-11-03 | A kind of high stability hand held electric drill being easily changed drill bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107876834A true CN107876834A (en) | 2018-04-06 |
| CN107876834B CN107876834B (en) | 2019-06-04 |
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| CN201711069438.5A Expired - Fee Related CN107876834B (en) | 2017-11-03 | 2017-11-03 | A kind of high stability hand held electric drill being easily changed drill bit |
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| CN109526360A (en) * | 2018-10-29 | 2019-03-29 | 李嫦雅 | A kind of high stability installing mechanism suitable for long axis rotary blade type mower |
| CN110280805A (en) * | 2019-06-25 | 2019-09-27 | 永康市晓诚电器有限公司 | A kind of electric drill of the protecting against shock that band is self-locking protection |
| CN111036618A (en) * | 2019-12-12 | 2020-04-21 | 安徽省春谷3D打印智能装备产业技术研究院有限公司 | Laser cleaning machine with laser head height adjustment structure |
| CN112404525A (en) * | 2020-10-09 | 2021-02-26 | 盐城市荣嘉机械制造有限公司 | Drill bit anti-disengaging structure and screw drill bit thereof |
| CN113245588A (en) * | 2021-05-26 | 2021-08-13 | 莆田市振芳商贸有限公司 | Processing equipment is used in production of environmental protection equipment |
| CN115139116A (en) * | 2022-06-24 | 2022-10-04 | 芜湖市零一精密工具制造有限公司 | Shockproof knife handle |
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| CN109526360A (en) * | 2018-10-29 | 2019-03-29 | 李嫦雅 | A kind of high stability installing mechanism suitable for long axis rotary blade type mower |
| CN110280805A (en) * | 2019-06-25 | 2019-09-27 | 永康市晓诚电器有限公司 | A kind of electric drill of the protecting against shock that band is self-locking protection |
| CN110280805B (en) * | 2019-06-25 | 2020-07-14 | 永康市晓诚电器有限公司 | Electric drill with self-locking anti-impact protection function |
| CN111036618A (en) * | 2019-12-12 | 2020-04-21 | 安徽省春谷3D打印智能装备产业技术研究院有限公司 | Laser cleaning machine with laser head height adjustment structure |
| CN112404525A (en) * | 2020-10-09 | 2021-02-26 | 盐城市荣嘉机械制造有限公司 | Drill bit anti-disengaging structure and screw drill bit thereof |
| CN113245588A (en) * | 2021-05-26 | 2021-08-13 | 莆田市振芳商贸有限公司 | Processing equipment is used in production of environmental protection equipment |
| CN115139116A (en) * | 2022-06-24 | 2022-10-04 | 芜湖市零一精密工具制造有限公司 | Shockproof knife handle |
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