CN202825748U - Novel electric hammer - Google Patents
Novel electric hammer Download PDFInfo
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- CN202825748U CN202825748U CN 201220249802 CN201220249802U CN202825748U CN 202825748 U CN202825748 U CN 202825748U CN 201220249802 CN201220249802 CN 201220249802 CN 201220249802 U CN201220249802 U CN 201220249802U CN 202825748 U CN202825748 U CN 202825748U
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- drill chuck
- drill
- electric hammer
- chuck
- turning set
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Abstract
Provided is a novel electric hammer. The novel electric hammer comprises a body. The body is provided with a drive motor, a gear transmission mechanism, a rotation sleeve, and an impact mechanism. The drive motor is connected to a input end of the gear transmission mechanism. The output of the gear transmission mechanism is connected to the rotation sleeve in a sleeve joint mode. The electric hammer further comprises a drill chuck which is hollow. The drill chuck is installed on the rotation sleeve through a fixed connection device. The drill chuck is provided with a button for delivering of an electric hammer drill with high torque. The electric hammer drill is arranged inside the drill chuck. The impact mechanism is located at the back position of the electric hammer drill. The outside of the drill chuck is provided with a clamping part for clamping the electric hammer drill. The drill chuck and the body can be installed and detached easily. The utility model provides a detachable drill chuck which is convenient to operate, and comfortable, and can be installed or detached easily with high-punching accuracy and high-efficiency processing.
Description
Technical field
The utility model relates to a kind of electric tool, especially a kind of electric hammer.
Background technology
Existing electric hammer, with reference to Fig. 1, Figure 1A and Figure 1B, drill bit 21 clampings of electric hammer function are realized the concrete drill hole operation at electric hammer, during such as need drill steel material or timber, with reference to Fig. 2, Fig. 2 A and Fig. 2 B, need in addition to fit on the electric hammer with refilling after drill chuck 101 is connected with connecting rod 102, spiral bit 100 or other drill jigs are held on the drill chuck 101 realize bore operation again, namely carry out electric drill function; When changing electric hammer function and electric drill function, the user need to install and remove drill chuck 101, the situation that can occur frequent mounting or dismounting drill chuck in actual the use, cause operation very inconvenient, and because when electric drill function, adopted the connecting rod structure, the head section of connecting rod and drill bit and electric hammer to be connected precision relatively poor, easily cause beating large, and and then cause drilling precision low, user's feel is uncomfortable in addition, working (machining) efficiency is lower; Being connected high pulling torque when transmitting work with turning set with the connection of key form, steel ball with the drill chuck connecting rod because of electric hammer drill 21 carries out axial location and carries out percussive drilling work, easily cause the key wearing and tearing in the turning set, thereby can't connect electric hammer drill 21 and drill chuck connecting rod 102, cause and to work, need carry out very loaded down with trivial details complete machine during repairing and disassemble the replacing turning set, this operation unprofessional user can be difficult to carry out repair and replacement.
Summary of the invention
For overcome existing electric hammer when realizing electric drill function inconvenient operation, drilling precision is lower, working (machining) efficiency is lower, change that the wearing and tearing turning set is more loaded down with trivial details, the deficiency of maintenance trouble, the utility model provide a kind of easy to operate, drilling precision is higher, working (machining) efficiency is higher and the key wearing and tearing after need not to disassemble complete machine and change turning set, a kind of Novel electric hammer easy to maintenance.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of Novel electric hammer, comprise fuselage, drive motors is installed in the described fuselage, gear drive, turning set and beater mechanism, described drive motors is connected with the input of gear drive, the output of described gear drive is connected with turning set, described Novel electric hammer also comprises drill chuck, described drill chuck is hollow form, described drill chuck is installed on the described turning set by fixed connection apparatus, described drill chuck is provided with the key that transmits the electric hammer drill high pulling torque, described electric hammer drill is installed in the described drill chuck, and described beater mechanism is positioned at the rear of described electric hammer drill, and described drill chuck outer wall is provided with the holder of clamping electric drill drill bit.
Further, described fixed connection apparatus is steel ball, have the toroidal cavity of stationary balls on the cylindrical of described turning set, have two steel ball holes on the described drill chuck, described steel ball is installed in described two steel ball holes and the toroidal cavity successively, and described electric hammer drill is axially fixed in the drill chuck by straight pin.
Further again, the drill bit fixed cover is positioned at the rear portion of drill chuck, and described drill bit fixed cover is sleeved on the drill chuck, and the drill bit retainer plate is installed in the described drill bit fixed cover, and described drill bit retainer plate cooperates with straight pin; The rear portion that the drill chuck fixed cover is positioned at the drill bit fixed cover is sleeved on the drill chuck simultaneously, installing drill chuck retainer plate in the drill chuck fixed cover, one end of back-moving spring withstands on the described drill chuck retainer plate, the other end of described back-moving spring withstands on the described drill bit retainer plate, described drill bit retainer plate blocks the straight pin of axial location electric hammer drill, and the drill chuck retainer plate blocks the steel ball of axial location drill chuck and turning set.
Described drill chuck fixed cover is mobile backward along the drill chuck axial direction, described drill chuck retainer plate has just got out of the way the position of blocking steel ball, the steel ball of this moment is just thrown off the toroidal cavity of turning set stationary balls, and the turning set of described drill chuck and fuselage just can be dismantled and be installed easily.
Preferably, described drill chuck is that the clamping specification is manually fastened drill chuck and the spanner-type drill chuck between the 6-20mm.
Or: described fixed connection apparatus adopts the key connected mode, comprise spline and keyway, described turning set is provided with spline (or keyway), and described drill chuck is provided with the keyway (or spline) that cooperates with described spline (or keyway), and described spline is nested in the described keyway.
Again or: described fixed connection apparatus adopts thread connecting mode, comprise internal thread and external screw thread, described turning set is provided with external screw thread (or internal thread), described drill chuck is provided with the internal thread (or external screw thread) that cooperates with described external screw thread (or internal thread), and described external screw thread is installed in the described internal thread.
Or be: described fixed connection apparatus adopts conical surface connected mode, comprise inner conical surface and male cone (strobilus masculinus), described turning set is provided with male cone (strobilus masculinus) (or inner conical surface), described drill chuck is provided with the inner conical surface (or male cone (strobilus masculinus)) that cooperates with described male cone (strobilus masculinus) (or inner conical surface), and described male cone (strobilus masculinus) is installed in the described inner conical surface.
Again or be: described fixed connection apparatus adopts flat side's connected mode, comprise interior flat side and outer flat side, described turning set is provided with outer flat side (or interior flat side), described drill chuck is provided with the interior flat side (or outer flat side) who cooperates with described outer flat side (or interior flat side), and described outer flat side is installed in the described interior flat side; Described flat side's connected mode can be that one side shape flat horizontal surface is to the Polyhedral flat horizontal surface.
The outer dust prevention system of the outside installation of described drill chuck, described outer dust prevention system comprises potted component and gland, and described gland is assemblied in the drill chuck front portion, and described potted component is sleeved on the outer wall of electric hammer drill.
The beneficial effects of the utility model are mainly manifested in: fuselage sections and the connection of drill chuck by various different fixed forms, realized an electric tool can finish need not dismantle drill chuck just directly clamping comprise that the various different drill bits of electric hammer drill realize various easy to operate, bore operations and improved operating efficiency efficiently; And utilize fixed connection apparatus, various dissimilar drill chucks can be installed on the electric tool or from electric tool fast and unload, and are easy to operate, quick.
Description of drawings
Fig. 1 is the stereogram of existing electric hammer clamping electric hammer drill.
Figure 1A is the structure chart of existing electric hammer clamping electric hammer drill.
Figure 1B is the cutaway view of existing electric hammer clamping electric hammer drill.
Fig. 2 is the stereogram of the existing common spiral bit of electric hammer clamping.
Fig. 2 A is the cutaway view of the existing common spiral bit of electric hammer clamping.
Fig. 2 B is the structure chart of the existing common spiral bit of electric hammer clamping.
Fig. 3 is the stereogram of the electric tool of a kind of first-selected embodiment of the utility model, and wherein showing head section is spanner-type drill chuck.
Fig. 4 is the stereogram of the utility model electric tool, and wherein showing head section is manually fastened drill chuck.
Fig. 5 is the top view of electric tool among Fig. 3.
Fig. 6 is the top view of electric tool among Fig. 4.
Fig. 7 and Fig. 7 the-the 1st, the structure chart of electric tool among Fig. 3, and wherein showing head section is spanner-type drill chuck.
Fig. 7 A and Fig. 7-1A are that electric tool is along the cutaway view of A-A direction among Fig. 5, and wherein showing head section is spanner-type drill chuck.
Fig. 7 B and Fig. 7-1B are the part figure of the structure chart of electric tool among Fig. 3, and wherein showing spanner-type drill chuck is being connected of key form with turning set.
Fig. 8 is the structure chart of electric tool among Fig. 4, and wherein showing head section is manually fastened drill chuck.
Fig. 8 A is that electric tool is along the cutaway view of A-A direction among Fig. 6, and wherein showing head section is manually fastened drill chuck.
Fig. 8 B is the part figure of the structure chart of electric tool among Fig. 6, and wherein showing manually fastened drill chuck is being connected of key form with the turning set fixture.
Fig. 9 is the structure chart of the electric tool of the utility model the second embodiment, wherein shows fuselage sections and head section (drill chuck) fixture for being threaded.
Fig. 9 A is the cutaway view of the electric tool of the utility model the second embodiment.
Fig. 9 B and Fig. 9 B-1 are the part figure of the structure chart of electric tool among Fig. 9, and wherein showing spanner-type drill chuck is being connected of thread forms with the turning set fixture.
Figure 10 is the structure chart of the electric tool of the utility model the 3rd embodiment, and wherein showing fuselage sections is that the conical surface is connected with head section (drill chuck) fixture.
Figure 10 A is the cutaway view of the electric tool of the utility model the 3rd embodiment.
Figure 10 B and Figure 10 B-1 are the part figure of the structure chart of electric tool among Figure 10, and wherein showing spanner-type drill chuck is that the conical surface is connected with the turning set fixture.
Figure 11 and Figure 11 the-the 1st, the structure chart of the electric tool of the utility model the 4th embodiment, and wherein showing fuselage sections is that flat side is connected with head section (drill chuck) fixture.
Figure 11 A and Figure 11-1A are the cutaway views of the electric tool of the utility model the 4th embodiment.
Figure 11 B and Figure 11-1B are the part figure of the structure chart of electric tool among Figure 11, and wherein showing spanner-type drill chuck is that flat side is connected with the turning set fixture.
Figure 12 A is the cutaway view of the common spiral bit of electric tool clamping of the present utility model, and what wherein show head section (spanner-type drill chuck) clamping is common spiral bit.
Figure 12 is the stereogram of the common spiral bit of electric tool clamping of the present utility model, and what wherein show head section (spanner-type drill chuck) clamping is common spiral bit.
Figure 13 is substantially clamping schematic diagram of electric hammer drill of the present utility model, drill chuck, fuselage sections.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
With reference to Fig. 3～Figure 13, a kind of Novel electric hammer, comprise fuselage 23, described fuselage 23 interior installation drive motors, gear drive, turning set 39 and beater mechanism 42, described drive motors is connected with the input of gear drive, the output of described gear drive is connected with turning set 39, described Novel electric hammer also comprises drill chuck 22, described drill chuck 22 is hollow form, described drill chuck 22 is installed on the described turning set 39 by fixed connection apparatus, described drill chuck is provided with for the key that transmits the large button square of electric hammer drill, described electric hammer drill is installed in the described drill chuck, described beater mechanism 42 is positioned at the rear of described electric hammer drill 21, and described drill chuck outer wall is provided with the holder of clamping electric drill drill bit, can assemble other drill bits such as fluted drill on the described holder.
Described drill chuck is that the clamping specification is manually fastened drill chuck and the spanner-type drill chuck between the 6-20mm.More than be two kinds of modes commonly used, certainly, the mode that also can adopt other to realize.
Fig. 3 shows the electric tool 20 in a kind of first-selected embodiment in the utility model.Referring now to Fig. 3 and Fig. 5, Fig. 7, Fig. 7 A electric tool 20 comprise a fuselage 23 and 22, one motors 27 of a drill chuck are placed in the fuselage 23, and switch 24 is installed in fuselage 23 outsides, and the user is by the opening and closing of console switch 24 control motors 27.In the present embodiment, electric tool 20 comprises an AC power cord 25 that stretches out from fuselage sections 23, by the AC power of outside motor is powered, and can certainly consider to adopt other modes that motor is powered, such as dc source.Electric hammer drill 21 is directly packed in the drill chuck 22, and drill chuck 22 is connected with the turning set 39 of fuselage 23.Motion transmission mechanism by inside can pass to the motion of motor 27 electric hammer drill 21, operates processing thereby order about 21 pairs of objects of electric hammer drill.In the present embodiment, fuselage sections 23 and drill chuck 22 are two members independent of each other.
With reference to Fig. 3 and Fig. 5, it is spanner-type drill chuck 22 that Fig. 7, Fig. 7 A wherein show head section.Its clamping specification comprises: 6-20mm, concrete clamping dimensions is 6mm, 10mm, 13mm, 20mm.With reference to Fig. 7 B, wherein showing spanner-type drill chuck is that the spline form is connected with turning set.
With reference to Fig. 4 and Fig. 6, it is manually fastened drill chuck 26 that Fig. 8, Fig. 8 A wherein show head section.Its clamping specification comprises: 6-20mm, concrete clamping dimensions is 6mm, 10mm, 13mm, 20mm.With reference to Fig. 8 B, wherein showing manually fastened drill chuck is that the spline form is connected with turning set.
With reference to Fig. 7, Fig. 7 A, motor 27 driven wheel 44, gear 43, gear 41, gear 40, turning set 39, drill chuck 22 output torques realize that electric hammer drill 21 rotatablely moves.Drive simultaneously beater mechanism 42, piston 51 is done reciprocating linear motion in cylinder 52, make jump bit 50 constantly hit electric hammer drill 21.
With reference to Fig. 7, Fig. 7 A presses drill bit fixed cover 36, and drill chuck 22 is connected on the turning set 39 of fuselage sections 23 by the key form.Drill chuck 22 is connected to come transmitting torque to realize rotatablely moving with turning set 39, adopts simultaneously steel ball 28 at axial restraint drill chuck 22 and turning set 39, prevents that drill chuck 22 from getting loose.
The front end that Fig. 7 and Fig. 7 A show drill chuck 22 has a dust prevention system and drill chuck 22 to be fixed together, and gland 30 has potted component 31 to cooperate with electric hammer drill 21 to prevent dust in the dust prevention system, and gland 30 is fixed together with drill chuck 22.Prevent that the dust of course of work peripheral and foreign matter from invading and damage drill chuck 22, cause the drill chuck 22 can not other class drill bit of clamping.
Shown in Fig. 7 A, in the present embodiment, can be assembled to spanner-type drill chuck inside for the ease of the electric hammer drill of all size.Simultaneously, for can having enough distances, the electric hammer drill that assembles in drill chuck and turning set, moves.
Preferably, the foremost section of spanner-type drill chuck is 75mm to the distance D of fuselage sections, usually, the scope of distance D at 40mm between the 100mm.Can be assembled to easily on the fuselage for the ease of head section (spanner-type drill chuck), in the present embodiment, preferably, head section (spanner-type drill chuck) is 20mm with the key external diameter C that is connected of turning set spline form, usually, the scope of D outer diameter at 12mm between the 50mm.
Shown in Fig. 8 A, in the present embodiment, can be assembled to spanner-type drill chuck inside for the ease of the electric hammer drill of all size.Simultaneously, for can having enough distances, the electric hammer drill that assembles in drill chuck and turning set, moves.
Preferably, the foremost section of manually fastened drill chuck is 75mm to the distance D of fuselage sections, usually, the scope of distance D at 40mm between the 100mm.Can be assembled to easily on the fuselage for the ease of manually fastened drill chuck, in the present embodiment, preferably, manually fastened drill chuck is 20mm with the key external diameter C that is connected of turning set key form, usually, the scope of external diameter C at 12mm between the 50mm.
Press drill bit fixed cover 36, electric hammer drill 21 directly is assembled in the drill chuck 22, is axially fixed in the drill chuck 22 by straight pin 32, realizes that electric hammer drill 21 can not get loose.When unclamping drill bit fixed cover 36, by back-moving spring 38 drill bit fixed cover 36 is automatically reset, the drill bit retainer plate 37 in the drill bit fixed cover 36 blocks the straight pin 32 of axial restraint electric hammer drill 21, prevents that straight pin 32 from getting loose.
When needs are dismantled electric hammer drill 21 from complete machine 20, press first drill bit fixed cover 36, drill bit fixed cover 36 moves down with the elastic force that drill bit retainer plate 37 overcomes back-moving spring 38.When drill bit fixed cover 36 moves down, the straight pin 32 of axial restraint electric hammer drill 21 can outwards be moved, can extract electric hammer drill 21 this moment.
When needs are dismantled drill chuck 22 from complete machine 20, press first drill chuck fixed cover 34, drill chuck fixed cover 34 moves down with the elastic force that drill chuck retainer plate 35 overcomes back-moving spring 38.When drill chuck fixed cover 34 moves down, the steel ball 28 of axial restraint drill chuck 22 can outwards be moved, can fast dismantle drill chuck 22 this moment.
Fig. 9 and Fig. 9 A, Fig. 9 B shows another embodiment, wherein drill chuck 22 is to be threaded connection fixed form with fuselage sections 23, and electric hammer drill 21 directly is assembled in the drill chuck 22 simultaneously, is axially fixed in the function that realizes electric hammer in the drill chuck 22 by straight pin 32.Shown in Fig. 9 A, can be assembled on the fuselage easily for the ease of drill chuck.Preferably, drill chuck is 20mm with the major diameter of thread E that is connected of turning set thread connecting mode, usually, the scope of major diameter of thread E at 12mm between the 50mm.
Figure 10 and Figure 10 A, Figure 10 B shows another embodiment, wherein the turning set 39 in drill chuck 22 and the fuselage sections 23 is to be connected and fixed mode by the conical surface, and electric hammer drill 21 directly is assembled in the drill chuck 22 simultaneously, is axially fixed in the function that realizes electric hammer in the drill chuck 22 by straight pin 32.Shown in Figure 10 A, can be assembled on the fuselage easily for the ease of drill chuck.Preferably, the large footpath C of the conical surface of drill chuck and turning set conical surface type of attachment is 20mm, usually, the scope of conical surface external diameter C at 12mm between the 50mm.
Figure 11 and Figure 11 A, Figure 11 B shows another embodiment, wherein the turning set 39 in drill chuck 22 and the fuselage sections 23 is to be connected and fixed mode by flat horizontal surface, electric hammer drill 21 directly is assembled in the drill chuck 22 simultaneously, is axially fixed in the function that realizes electric hammer in the drill chuck 22 by straight pin 32.Shown in Figure 11 A, can be assembled on the fuselage easily for the ease of drill chuck.Preferably, the external diameter C of drill chuck and turning set flat horizontal surface type of attachment is 20mm, usually, the scope of external diameter C at 12mm between the 50mm.
Fig. 3, Fig. 4, Fig. 7 A, Fig. 8 A shows the utility model electric tool need not dismantle drill chuck 22, just can directly be assembled to the bore operation of realizing the electric hammer function in the drill chuck 22 to electric hammer drill 21.Figure 12 and Figure 12 A show the common spiral bit 100 of drill chuck 22 direct clampings.
Figure 1A, Figure 1B show common electric hammer clamping electric hammer drill.Fig. 2, Fig. 2 A, Fig. 2 B show common electric hammer to be needed be connected with drill chuck 101 afterwards with connecting rod 102 in addition be assemblied on the electric hammer, spiral bit 100 or other drill jigs is held in realizes bore operation on the drill chuck again.
By the utility model Fig. 3, Fig. 4, Fig. 7 A, Fig. 8 A, Figure 1A of Figure 12 and Figure 12 A and common electric hammer, Figure 1B, Fig. 2, Fig. 2 A, Fig. 2 B can embody the utility model than common electric hammer when the various drill bit of clamping not only convenient, fast and also increase work efficiency in improve precision.But and easy removal and installation replacing drill chuck.
Four kinds of fixed connection apparatus of various keys, screw thread, the conical surface, flat horizontal surface to drill chuck and fuselage sections in above-described embodiment are described, those of ordinary skill in the art also can expect adopting other some fixtures such as elastic cylindrical pin or steel ball to realize in the present embodiment drill chuck being connected and dismounting fast, easily with fuselage, and realizes electric hammer drill to be assemblied in the drill chuck and finally realize the drilling function of electric hammer or electric drill.Fixture also is not limited to frame for movement, also can be some other device of realizing fixing maintenance function by modes such as magnetic force.
The electric tool that the utility model discloses is not limited to the described content of above embodiment and the represented structure of accompanying drawing.On basis of the present utility model to the shape of member wherein and the apparently change that makes the position, substitute or revise, all within the claimed scope of the utility model.
Claims (10)
1. Novel electric hammer, comprise fuselage, drive motors is installed in the described fuselage, gear drive, turning set and beater mechanism, described drive motors is connected with the input of gear drive, the output of described gear drive is connected with turning set, it is characterized in that: described Novel electric hammer also comprises drill chuck, described drill chuck is hollow form, described drill chuck is installed on the described turning set by fixed connection apparatus, described drill chuck is provided with for the key that transmits the large button square of electric hammer drill, described electric hammer drill is installed in the described drill chuck, and described beater mechanism is positioned at the rear of described electric hammer drill; Described drill chuck outer wall is provided with the holder of clamping electric drill drill bit.
2. Novel electric hammer as claimed in claim 1, it is characterized in that: described fixed connection apparatus is steel ball, have the toroidal cavity of stationary balls on the cylindrical of described turning set, have two steel ball holes on the described drill chuck, described steel ball is installed in described two steel ball holes and the toroidal cavity successively; Described electric hammer drill is axially fixed in the drill chuck by straight pin.
3. Novel electric hammer as claimed in claim 2, it is characterized in that: described Novel electric hammer also comprises the drill bit fixed cover, the drill bit fixed cover is positioned at the rear portion of drill chuck, described drill bit fixed cover is sleeved on the drill chuck, the drill bit retainer plate is installed in the described drill bit fixed cover, and described drill bit retainer plate cooperates with straight pin; The rear portion that the drill chuck fixed cover is positioned at the drill bit fixed cover is sleeved on the drill chuck simultaneously, installing drill chuck retainer plate in the drill chuck fixed cover, one end of back-moving spring withstands on the described drill chuck retainer plate, the other end of described back-moving spring withstands on the described drill bit retainer plate, described drill bit fixed cover blocks the straight pin of axial location electric hammer drill, and the drill chuck fixed cover blocks the steel ball of axial location drill chuck and turning set.
4. such as the described Novel electric hammer of one of claim 1～3, it is characterized in that: described drill chuck is that the clamping specification is manually fastened drill chuck and the spanner-type drill chuck between the 6-20mm.
5. Novel electric hammer as claimed in claim 1, it is characterized in that: described fixed connection apparatus comprises spline and keyway, described turning set is provided with spline or keyway, and described drill chuck is provided with keyway or the spline that cooperates with described spline or keyway, and described spline is nested in the described keyway.
6. Novel electric hammer as claimed in claim 5, it is characterized in that: have the toroidal cavity of stationary balls on the cylindrical of described turning set, have two steel ball holes on the described drill chuck, described steel ball is installed in described two steel ball holes and the toroidal cavity successively.
7. Novel electric hammer as claimed in claim 1, it is characterized in that: described fixed connection apparatus comprises internal thread and external screw thread, described turning set is provided with external screw thread or internal thread, described drill chuck is provided with internal thread or the external screw thread with described external screw thread or screw-internal thread fit, and described external screw thread is installed in the described internal thread.
8. Novel electric hammer as claimed in claim 1, it is characterized in that: described fixed connection apparatus comprises inner conical surface and male cone (strobilus masculinus), described turning set is provided with male cone (strobilus masculinus) or inner conical surface, described drill chuck is provided with inner conical surface or the male cone (strobilus masculinus) that cooperates with described male cone (strobilus masculinus) or inner conical surface, and described male cone (strobilus masculinus) is installed in the described inner conical surface.
9. Novel electric hammer as claimed in claim 1, it is characterized in that: described fixed connection apparatus comprises outer flat side and interior flat side, described turning set is provided with outer flat side or interior flat side, described drill chuck is provided with interior flat side or the outer flat side who cooperates with described outer flat side or interior flat side, and the outer flat side of described turning set is installed in the interior flat side of described drill chuck.
10. such as the described Novel electric hammer of one of claim 1～9, it is characterized in that: the outer dust prevention system of the outside installation of described drill chuck, described outside dust prevention system comprises potted component and gland, and described gland is assemblied in the drill chuck front portion, and described potted component is sleeved on the outer wall of electric hammer drill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249802 CN202825748U (en) | 2012-05-25 | 2012-05-25 | Novel electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249802 CN202825748U (en) | 2012-05-25 | 2012-05-25 | Novel electric hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202825748U true CN202825748U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220249802 Expired - Fee Related CN202825748U (en) | 2012-05-25 | 2012-05-25 | Novel electric hammer |
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| Country | Link |
|---|---|
| CN (1) | CN202825748U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013174217A1 (en) * | 2012-05-25 | 2013-11-28 | 浙江海王电器有限公司 | Quickly replaceable dual-purpose drill chuck and electric hammer drill using same |
-
2012
- 2012-05-25 CN CN 201220249802 patent/CN202825748U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013174217A1 (en) * | 2012-05-25 | 2013-11-28 | 浙江海王电器有限公司 | Quickly replaceable dual-purpose drill chuck and electric hammer drill using same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20160525 |