CN102744701B - Tool bit of combined electric screw driver - Google Patents
Tool bit of combined electric screw driver Download PDFInfo
- Publication number
- CN102744701B CN102744701B CN201210029009.6A CN201210029009A CN102744701B CN 102744701 B CN102744701 B CN 102744701B CN 201210029009 A CN201210029009 A CN 201210029009A CN 102744701 B CN102744701 B CN 102744701B
- Authority
- CN
- China
- Prior art keywords
- cutter head
- sleeve
- connector
- head
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The invention relates to an electric screw driver. The tool bit of the combined electric screw driver comprises a sleeve and a tool bit, the rear part of which is connected with an electric knife handle. The tool bit is in the sleeve which is provided with two connecting holes opposite to each other. Two rows of connecting heads distributed axially along the tool bit and stretching radially along the tool bit are arranged on both sides of the tool bit. Each row of connecting heads can be plugged in the corresponding connecting hole. When one row of the connecting heads is inserted into the corresponding connecting hole, the head of the tool bit is accommodated in the sleeve; and when the other row of the connecting heads is inserted into the corresponding connecting hole, the head of the tool bit extends out of the sleeve. The invention provides the tool bit of the combined electric screw driver, wherein one tool bit is adaptive to screw spikes in various specifications, and solves the problem that the electric screw drivers with tool bits in different shapes are required when used to screw the screw spikes in various specifications or the electric screw driver is inconvenient to use and the tool expense is increased as tool bits in different shapes are changed on the same electric knife handle.
Description
Technical field
The present invention relates to electric screw driver, relate in particular to a kind of combined electric driver bit.
Background technology
Screwdriver is to be a kind ofly used for twisting screw to force screw instrument in place.Screwdriver comprises cutter head and handle of a knife.According to the difformity of the screw rather being turned, the nose shape of cutter head has multiple, as yi word pattern, cross, square, hexagon, quincunx etc.
Screwdriver is divided into hand screwdriver (by the screwdriver of artificial rotation) and electric screw driver (by the screwdriver of revolution) according to the difference in the power source that drives cutter head to rotate.
Chinese patent notification number be 2042403U, the day for announcing are Augusts 9 in 1989 day, in being called the patent documentation of " screwdriver ", a kind of hand screwdriver is disclosed.
At Chinese patent Granted publication number for 201693490U, Granted publication day be January 5 in 2011 day, be called in the patent documentation of " a kind of electric screw driver " and disclose a kind of electric screw driver.This screwdriver comprises electric screw driver main body and the rotary head electronic handle of a knife of electric screw driver (this two be) and turning handle (raising is held in the convenience on electronic handle of a knife and designs), when use, cutter head is detachably connected on electronic handle of a knife.
The version of existing electric screw driver is identical with the version in above-mentioned patent, is made up of the electronic handle of a knife and the cutter head that are detachably connected.The existing version for the cutter head on electronic screw driver is: the screw that cutter head can only adaptive a kind of shape, in the time that the screw of being twisted is different, need on electronic handle of a knife, change cutter head.
In actual job process, when Assembly part, exist an operating personnel need to assemble two or more screw (as crosshead pan head screw and hexagon flange bolt) and need the frequent phenomenon of switching.The existing mode that meets this kind of operation needs has two kinds: a kind of electric screw driver for configuring many handles to an operating personnel with corresponding cutter head, this kind of mode can cause that instrument acquisition expenses is high, increase in tool storage space, when frequent replacing electric screw driver, need on socket, plug continually electric screw driver plug, make troubles and accelerate the damage of workshop electric wiring to operation; Another kind of mode is for sharing an electric handle, on electric handle, repeatedly change different cutter head (collet head, cross cutter head, manifold etc.) and meet need of production, which causes waste in man-hour and the wearing and tearing of electric screw driver junction to accelerate, and causes electric screw driver to be scrapped in advance.
Summary of the invention
The invention provides the combined electric driver bit of the screw that a cutter head can adaptive plurality of specifications, solved need to use while twisting the screw of different size with electric screw driver and there is the electric screw driver of difform cutter head or on same electronic handle of a knife, change the use inconvenience that difform cutter head causes, the problem that tool expense increases.
Above technical problem solves by following technical proposal: a kind of combined electric driver bit, comprise the cutter head that sleeve is connected with electronic handle of a knife with afterbody, described cutter head is positioned at described sleeve, described sleeve is provided with two relative connecting holes, the both sides of described cutter head be provided with two rows along cutter head axial distribution can be along the connector of cutter head radial expansion, described every row's connector can be plugged in corresponding connecting hole, in the time that the socket in two row's connectors is in described connecting hole, the head captured of described cutter head is in described sleeve, in the time that another socket in two row's connectors is in described connecting hole, the head of described cutter head stretches out described sleeve.The head design of cutter head is the adaptive shape of bolt (as a word bolt nail, cross screw bolt nail, hexagon socket head cap screw nail etc.) that same afterbody coordinates with screwdriver by the design line of rabbet joint or recess.When use, if need to twist the bolt that afterbody coordinates with screwdriver by the design line of rabbet joint or recess time, make to be located in connecting hole away from that row's connector of cutter head head, the head of cutter head exposes, be stuck in by the head of cutter head in the line of rabbet joint or recess of afterbody of the bolt of being twisted, then start electronic handle of a knife, electronic handle of a knife drives cutter head rotation, and cutter head drives bolt rotation; If need to twist directly built-in by afterbody and while being stuck in the bolt (as hexagon flange bolt) coordinating with screwdriver in sleeve, make to be located in connecting hole near that row's connector of cutter head head, the head captured of cutter head is in sleeve, be stuck in the afterbody of the bolt of being twisted, then start electronic handle of a knife by sleeve, electronic handle of a knife drives cutter head rotation, cutter head drives sleeve rotating, and sleeve drives bolt rotation.This kind of design makes the screw of the adaptive two kinds of shapes of the present invention's energy.
As preferably, the head of described cutter head comprises first body of rod and second body of rod that are radially superimposed together, described first body of rod and second body of rod are hinged, described first body of rod is fixed together with the afterbody of cutter head, the first head that one end radial abutment of the free end of described first body of rod and described second body of rod becomes the screw of same shape to match, the other end of described second body of rod is provided with the second head matching with the screw of another kind of shape.When use, form the first head together with the same one end radial abutment of second body of rod of free end that first body of rod and second body of rod turn to first body of rod time, can remove to rotate by the first head a kind of screw of model, in the time that first body of rod and second body of rod turn to the second head away from the afterbody of cutter head, can remove to rotate by the second head the screw of another kind of model, therefore this design makes the screw of the adaptive two kinds of shapes of head energy of cutter head, add the screw of the adaptive a kind of model of upper bush, therefore the screw of the adaptive three kinds of models of the present invention's energy in this technical scheme.
As preferably, described sleeve is provided with socket part, described socket part by described second body of rod together with the first body of rod obvolvent.Prevent from twisting bolt when nail by cutter head, first body of rod and second body of rod stagger and affect and twist effect.
As preferably, between the head of described cutter head and afterbody, be provided with sleeve connecting portion, in described sleeve connecting portion, be provided with cavity, in described cavity, be provided with shell fragment, on described shell fragment, be connected with the radially button through described sleeve connecting portion, described connector is radially fixed on described shell fragment through after described connecting portion.While pressing button, shell fragment is towards cavity inside elastic bending, shell fragment drives connector to shrink in cutter head, the same row's connector of connecting hole is thrown off, now can move axially sleeve then the head of cutter head expose or be contained in sleeve, then unclamp to the pressing of button, under the elastic force effect of shell fragment, connector is protruding, and connecting hole is set on another row's connector.Sleeve is with being connected firmly between cutter head.
Preferred as another, described connector is plugged on described cutter head, is provided with the spring that the described connector of extrapolation is used between the inner of described connector and cutter head, and the outer end of described connector is provided with approaching face." approaching face " thus refer to along cutter head move axially sleeve time guide sleeve extruding connector make connector depart from the face of connecting hole.When in the process that moves axially sleeve along cutter head, under the guiding of approaching face, sleeve extruding is inserted that row's connector therein and this row's connector is deviate from connecting hole, in the time that sleeve moves to connecting hole on it with another row's connector alignment, under the effect of spring, connector ejects and inserts in connecting hole.Moving sleeve and make sleeve with the disengagement of cutter head with close and can synchronize, easy to use.
As preferably, described cutter head is provided with accommodation hole, the described accommodation hole port lid that has been threaded, and described connector the inner is provided with dop, and described connector is through described port lid, and described dop and described spring are positioned at described accommodation hole.Convenient when installation and maintenance.
As preferably, described connecting hole has two at least, described connecting hole is along the circumferential distribution of described sleeve, and each quantity of arranging connector in described connector is equal with the quantity of described connecting hole, and each connector of arranging in described connector can insert in described connecting hole correspondingly.The bonding strength of sleeve when being fixed together between cutter head is good.
As preferably, described connecting hole is circumferentially uniformly distributed along described sleeve.By connector transmitting torque, during to sleeve, dynamic balancing when sleeve rotates is effective.
As preferably, between the inner surface of described sleeve and the outer surface of described cutter head, be provided with axially extended chute and the slide rail along the cutter head that complement one another.Move axially sleeve on cutter head time, connector and connecting hole can not produce circumferential misalignment.Can carry out transmitting torque to sleeve by slide rail simultaneously.
As preferably, the junction of described sleeve and cutter head is that prismatic surface coordinates.
The present invention has following advantage, a present invention can match with the screw of at least two kinds of models, while twisting the screwdriver of different model, do not need to change electric screw driver or change cutter head, therefore easy to use, because not needing frequent replacing between electronic handle of a knife and cutter head, therefore the junction of electronic handle of a knife and cutter head is not fragile, can extend the service life of electric screw driver, reduces tool expense.
Brief description of the drawings
Fig. 1 is the schematic diagram of a kind of state of the embodiment of the present invention one.
Fig. 2 is A-A schematic cross-section of Fig. 1.
Fig. 3 is the schematic diagram of the another kind of state of the embodiment of the present invention one.
Fig. 4 is the schematic cross-section of the embodiment of the present invention two.
Fig. 5 is the schematic cross-section of the embodiment of the present invention three.
Fig. 6 is the schematic diagram of the embodiment of the present invention four.
Fig. 7 is B-B schematic cross-section of Fig. 6.
Fig. 8 is the schematic diagram of the first state of the embodiment of the present invention five.
Fig. 9 is the schematic diagram of the second state of the embodiment of the present invention five.
Figure 10 is the schematic diagram of the third state of the embodiment of the present invention five.
In figure: sleeve 1, connecting hole 11, slide rail 12, socket part 13, cutter head 2, head 23, sleeve connecting portion 22, chute 221, afterbody 21, the first body of rod 231, the second bodies of rod 232, cavity 24, accommodation hole 25, port lid 26, the first heads 27, the second head 28, button 3, upper button 31, knob down 32, connector 4, left connector 41, upper left connector 411, lower-left connector 412, right connector 42, upper right connector 421, bottom right connector 422, dop 43, approaching face 44, shell fragment 5, upper shell fragment 51, lower shell fragment 52, spring 6, hinge 7.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the present invention is further illustrated.
Referring to Fig. 1, a kind of combined electric driver bit, comprises sleeve 1 and cutter head 2.
Cutter head 2 is provided with afterbody 21, sleeve connecting portion 22 and head 23 successively.Head 23 and afterbody 21 are welded on sleeve connecting portion 22.
Head 23 is yi word pattern head.
On sleeve connecting portion 22, be provided with successively from left to right row's button 3 and two row's connectors 4.
Button 3 comprises button 31 and knob down 32.
Two row's connectors 4 are respectively left connector 41 and right connector 42.Left connector 41 and right connector 42 are along the axial distribution of cutter head 2.Left connector 41 comprises upper left connector 411 and lower-left connector 412.Right connector 42 comprises upper right connector 421 and bottom right connector 422.In sleeve connecting portion 22, be provided with cavity 24.In cavity 24, be provided with two shell fragments 5.The right-hand member of shell fragment 5 is welded on the right-hand member wall of cavity 24.Two shell fragments 5 are respectively shell fragment 51 and lower shell fragment 52.Upper button 31, upper right connector 421 and upper left connector 411 threes are radially welded on shell fragment 51 through after sleeve connecting portion 22.Knob down 32, bottom right connector 422 and lower-left connector 412 threes are radially welded on lower shell fragment 52 through after sleeve connecting portion 22.
Sleeve 1 is Hexagonal jacket.Sleeve 1 is set on cutter head 2.Sleeve 2 is provided with socket part 13.Slip together with sleeve connecting portion 22 socket part 13.Socket part 13 is provided with two connecting holes 11.Two connecting holes 11 being circumferentially uniformly distributed along sleeve 1.
Referring to Fig. 2, sleeve connecting portion 22 and the 13Wei face of cylinder, socket part coordinate.This designs in use, between sleeve 1 and cutter head 2, directly carrys out transmission power by connector 4.
When use, referring to Fig. 1 and Fig. 3, afterbody 21 is connected on electronic handle of a knife, electronic handle of a knife is existing structure, does not draw in the drawings.As shown in Figure 1, when upper right connector 421 and bottom right connector 422 are located in two connecting holes 11 when interior correspondingly, head 23 is contained in sleeve 1, now can twist hexagon flange bolt.As shown in Figure 3, press button 3 deviates from right connector 42 in connecting hole 11, be moved to the left sleeve 1, unclamp pressing button 3, in the time that connecting hole 11 aligns left connector 41, under the effect of shell fragment 5, upper left connector 411 and lower-left connector 412 are located in two connecting holes 11 correspondingly, now head 23 stretches out sleeve 1, can twist a word screw.
Embodiment bis-referring to Fig. 4, is: the inner surface of socket part 13 is provided with slide rail 12 that the outer surface of sleeve connecting portion 22 is provided with chute 221 with the difference of embodiment mono-.Slide rail 12 is arranged in chute 221.All extending axially along cutter head of slide rail 12 and chute 221.
Embodiment tri-, referring to Fig. 5, with the difference of embodiment mono-is: between sleeve connecting portion 22 and socket part 13, be that six prismatic surfaces coordinate.
Embodiment tetra-, referring to Fig. 6, with the difference of embodiment tri-is: head 23, afterbody 21 and sleeve connecting portion 22 threes are structure as a whole.
Sleeve connecting portion 22 is provided with four accommodation holes 25.Four connectors 4 are arranged on four accommodation holes 25 correspondingly.Accommodation hole 25 port lid 26 that has been threaded.Connector 4 the inners are provided with dop 43.On the left and right sides of the outer end of connector 4, be all provided with approaching face 44.Connector 4 is through port lid 26.Between dop 43 and the diapire of accommodation hole 25, be provided with spring 6.
Referring to Fig. 7, sleeve connecting portion 22 is solid construction.
Referring to Fig. 6, the method for moving sleeve 1 is: when along cutter head 2 move axially sleeve 1 time, sleeve 1 can extruding approaching face 44, makes connector 4 to the interior contraction of accommodation hole 25 Compress Spring 6.In the time that connecting hole 11 aligns with connector 4, under the effect of spring 6, connector 4 inserts in connecting hole 11.
Embodiment five, referring to Fig. 8, with the difference of embodiment tetra-is: head 23 comprises first body of rod 231 and second body of rod 232 that are radially superimposed together.First body of rod 231 and second body of rod 232 are hinged by hinge 7.First body of rod 231 is with afterbody 21 Joints of cutter head.The free end of first body of rod 231 becomes the first head 27 of yi word pattern with the right-hand member radial abutment of second body of rod 232.The right-hand member of second body of rod 232 is provided with the second cross head 28.
Right connector 42 is arranged on head 23.This kind of design makes the socket part 13 can be by second body of rod 232 together with the first body of rod 231 obvolvents.
Hinge 7 connects two accommodation holes 25 that connect right connector 42.This kind of design improved the convenience while making with assembling.
When use, afterbody 21 is connected on electronic handle of a knife, electronic handle of a knife is existing structure, does not draw in the drawings.As shown in Figure 8, when right connector 42 is inserted in connecting hole 11 when interior, head 23 is contained in sleeve 1, can twist hexagon flange bolt by sleeve 1.As shown in Figure 9, in the time that left connector 41 is inserted in connecting hole 11 and make the first head 27 stretch out sleeve 1, can twist a word screw by the first head 27.As shown in figure 10, rotate second body of rod 232 taking hinge 7 as axle, make the second head 28 stretch out sleeve 1, can twist plus screw by the second head 28.When no matter that head of head 23 stretches out sleeve 1, socket part 13 be all by second body of rod 232 together with the first body of rod 231 obvolvents.
Certain the first head can be different according to the shape of twisted bolt with the second head, can be designed to adaptively as M shape, square, hexagon, the shape such as L shaped.
Claims (8)
1. a combined electric driver bit, comprise the cutter head (2) that sleeve (1) is connected with electronic handle of a knife with afterbody, it is characterized in that, described cutter head is positioned at described sleeve, described sleeve is provided with relative two connecting holes (11), the both sides of described cutter head be provided with two rows along cutter head axial distribution can be along the connector of cutter head radial expansion (4), described connecting hole is along the circumferential distribution of described sleeve, each quantity of arranging connector in described connector equates with the quantity of described connecting hole, each connector of arranging in described connector can insert in described connecting hole correspondingly, in the time that the socket in two row's connectors is in described connecting hole, the head captured of described cutter head is in described sleeve, in the time that another socket in two row's connectors is in described connecting hole, the head of described cutter head stretches out described sleeve, the head of described cutter head comprises first body of rod (231) and second body of rod (232) that are radially superimposed together, described first body of rod and second body of rod are hinged, described first body of rod is fixed together with the afterbody of cutter head, the first head that one end radial abutment of the free end of described first body of rod and described second body of rod becomes the screw of same shape to match, the other end of described second body of rod is provided with the second head matching with the screw of another kind of shape.
2. combined electric driver bit according to claim 1, is characterized in that, described sleeve is provided with socket part, described socket part by described second body of rod together with the first body of rod obvolvent.
3. combined electric driver bit according to claim 1 and 2, it is characterized in that, between the head of described cutter head and afterbody, be provided with sleeve connecting portion (22), in described sleeve connecting portion, be provided with cavity (24), in described cavity, be provided with shell fragment (5), on described shell fragment, be connected with the radially button (3) through described sleeve connecting portion, described connector is radially fixed on described shell fragment through after described connecting portion.
4. combined electric driver bit according to claim 1 and 2, it is characterized in that, described connector is plugged on described cutter head, is provided with the spring that the described connector of extrapolation is used between the inner of described connector and cutter head, and the outer end of described connector is provided with approaching face.
5. combined electric driver bit according to claim 4, it is characterized in that, described cutter head is provided with accommodation hole, the described accommodation hole port lid that has been threaded, described connector the inner is provided with dop, described connector is through described port lid, and described dop and described spring are positioned at described accommodation hole.
6. combined electric driver bit according to claim 1 and 2, is characterized in that, described connecting hole is circumferentially uniformly distributed along described sleeve.
7. combined electric driver bit according to claim 1 and 2, is characterized in that, is provided with axially extended chute and the slide rail along the cutter head that complement one another between the inner surface of described sleeve and the outer surface of described cutter head.
8. combined electric driver bit according to claim 1 and 2, is characterized in that, the junction of described sleeve and cutter head is that prismatic surface coordinates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210029009.6A CN102744701B (en) | 2012-02-10 | 2012-02-10 | Tool bit of combined electric screw driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210029009.6A CN102744701B (en) | 2012-02-10 | 2012-02-10 | Tool bit of combined electric screw driver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102744701A CN102744701A (en) | 2012-10-24 |
| CN102744701B true CN102744701B (en) | 2014-08-13 |
Family
ID=47025382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210029009.6A Expired - Fee Related CN102744701B (en) | 2012-02-10 | 2012-02-10 | Tool bit of combined electric screw driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102744701B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141974B (en) * | 2016-08-05 | 2018-10-23 | 国网浙江省电力公司湖州供电公司 | A kind of hexagon socket head cap screw fastener |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2442697A1 (en) * | 1978-12-01 | 1980-06-27 | Dufourd Guy | Double purpose demountable bit for screwdriver - uses recoil sprung telescopic action giving access to bladed driving head or socket |
| CN2140290Y (en) * | 1992-06-25 | 1993-08-18 | 余祖良 | Screwdriver |
| CN2262977Y (en) * | 1996-08-29 | 1997-09-24 | 刘国珍 | Bidirectional telescopic screwdriver operated by rotating handle |
| CN201136134Y (en) * | 2007-10-04 | 2008-10-22 | 范思佳 | Novel dual-purpose screw driver |
| US7581470B1 (en) * | 2008-11-25 | 2009-09-01 | Jui-Min Huang | Universal screwdriver bit set |
| CN201329568Y (en) * | 2008-11-25 | 2009-10-21 | 黃瑞敏 | General screwdriver bit connecting rod |
| CN201856194U (en) * | 2010-10-13 | 2011-06-08 | 戴志彬 | Telescopic socket wrench |
-
2012
- 2012-02-10 CN CN201210029009.6A patent/CN102744701B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2442697A1 (en) * | 1978-12-01 | 1980-06-27 | Dufourd Guy | Double purpose demountable bit for screwdriver - uses recoil sprung telescopic action giving access to bladed driving head or socket |
| CN2140290Y (en) * | 1992-06-25 | 1993-08-18 | 余祖良 | Screwdriver |
| CN2262977Y (en) * | 1996-08-29 | 1997-09-24 | 刘国珍 | Bidirectional telescopic screwdriver operated by rotating handle |
| CN201136134Y (en) * | 2007-10-04 | 2008-10-22 | 范思佳 | Novel dual-purpose screw driver |
| US7581470B1 (en) * | 2008-11-25 | 2009-09-01 | Jui-Min Huang | Universal screwdriver bit set |
| CN201329568Y (en) * | 2008-11-25 | 2009-10-21 | 黃瑞敏 | General screwdriver bit connecting rod |
| CN201856194U (en) * | 2010-10-13 | 2011-06-08 | 戴志彬 | Telescopic socket wrench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102744701A (en) | 2012-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203557322U (en) | Multi-spindle electric screwdriver | |
| CN102744701B (en) | Tool bit of combined electric screw driver | |
| CN204019479U (en) | A kind ofly move back the removal tool special that bolt is used | |
| CN206084892U (en) | But angle regulation's screwdriver | |
| CN205928408U (en) | Box spanner's cover cartridge head | |
| CN110253478B (en) | Self-floating duplex sleeve | |
| CN205928429U (en) | Hex socket spanner | |
| CN201913578U (en) | Combined wrench | |
| CN201799867U (en) | Switching device for two models of main shaft taper holes of machine tool | |
| CN207026570U (en) | A kind of fire grate segment processes special module face milling cutters | |
| CN211362099U (en) | Disassembling tool for spline housing of drum wheel shaft of cigarette assembler | |
| CN202781043U (en) | Screwdriver bit for taking out disintegrating screw | |
| CN213838535U (en) | Tubing coupling with screwed jack | |
| CN203566595U (en) | Outside tooth drive-type sleeve | |
| CN101927471B (en) | Sleeve tool for wrenching bolt | |
| CN203003768U (en) | Multifunctional screwdriver | |
| CN204893796U (en) | Cup joint screwdriver | |
| CN206528281U (en) | Multijaw hand drill | |
| CN209579356U (en) | A kind of shock-absorbing repair outfit | |
| CN203321333U (en) | Modularized and combined cutter head and raise boring machine comprising same | |
| CN203477268U (en) | Transmission gear box of multi-shaft drilling machine | |
| CN205201425U (en) | Knife rest extracting tool | |
| CN219987532U (en) | Fastening tool for CT bulb tube high-pressure flange | |
| CN102626912A (en) | Detaching tool | |
| CN203125485U (en) | Machine tool device capable of rapidly replacing different reduction gear components |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20220210 |