CN204772299U - Instrument connects magnetism of end to inhale structure - Google Patents
Instrument connects magnetism of end to inhale structure Download PDFInfo
- Publication number
- CN204772299U CN204772299U CN201520289423.XU CN201520289423U CN204772299U CN 204772299 U CN204772299 U CN 204772299U CN 201520289423 U CN201520289423 U CN 201520289423U CN 204772299 U CN204772299 U CN 204772299U
- Authority
- CN
- China
- Prior art keywords
- ring group
- driver element
- spacing
- driving body
- magnetic
- Prior art date
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- Expired - Fee Related
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model provides an instrument connects magnetism of end to inhale structure, it contains a drive unit, one drives and change unit, magnetic ring cover unit and a magnetism and inhale that an institute is relative to be constituteed, creat unique design by this, make the utility model discloses a this magnetic ring cover unit this inside spacing appearance room, and can inhale the interval change and quick sliding displacement in this ring group reason of this drive unit according to magnetism, just the utility model discloses a radial width of this magnetic ring cover unit can hold in the counter bore of general mounting to can drive fast changes the built -up member use, and then reaches convenient practicality and the creativeness in the use.
Description
Technical field
The utility model connects the magnetic structure of end about a kind of instrument, especially a kind of can the structure that uses of fast driving assembly.
Background technology
As shown in Figure 7, it is the magnetic structure that instrument of the prior art connects end, it includes a sleeve 1, a tool body 3 is established in this sleeve 1 rear end, this tool body 3 end is provided with a drive end 4, this drive end 4 connects establishes a driven tool 70, this sleeve 1 front end is provided with one and turns end 2, but when this sleeve 1 and this turn end 2 establish the assembly 50 of screw for spiral shell time, then cannot enter in the counterbore 62 set by this fixture 60 because this magnetic attraction sleeve 1 is too large, and the smooth group of this assembly 50 cannot be made to enter in connecting piece 61.
So for the problem points in above-mentioned prior art existing for structure, how developing a kind of innovation structure having more desirable practicality, is use consumer eagerly to look forward to, be also target and direction that relevant industry must make great efforts research and development breakthrough.
Utility model content
Main purpose of the present utility model, the magnetic structure providing a kind of instrument to connect end; Its problem points to be solved, too large and cannot enter in the counterbore set by this fixture for magnetic attraction sleeve of the prior art, and smooth group of this assembly cannot be made to enter connecting piece problem points improved breakthrough;
And the technical characterstic that it is dealt with problems, mainly by comprising: a driver element, this driver element includes a drive end, one turns unit, and this turns unit and includes a neck section of stretching, and this neck section of stretching is axially set in one end of this driving body, and this neck section of stretching magnetic that relatively this driving body one end is formed with a loop order edge form draws face, and this magnetic draws face for having magnetic material and makes, the another end axle of this neck section of stretching another is provided with a ring group edge, and this ring group edge one end is provided with one and turns end, one magnet ring cover unit, include the sleeve body that is axially hollow, this sleeve body one end inner wall ring week is provided with a spacing ring group portion, and the adjacent side shaft in this spacing ring group portion is provided with the circuferential spacing form of a spacing room, the axial depth of this spacing room and radial depth are greater than axial length and the radial width of the ring group edge of this spacing ring group portion and this driver element, and this neck section of stretching radial width of this driver element is less than the radial width in this spacing ring group portion of this magnet ring cover unit, thus after making this spacing ring group portion relatively lead group via this ring group edge of this driver element, making this ring group edge can depart from this spacing ring group portion enters in this spacing room, and it is spacing to make this ring group edge produce block relative to this spacing ring group portion, the another end of another this magnet ring cover unit is provided with an accommodation space be connected with this spacing room, this accommodation space has been installed with a magnetic absorption member, and these magnetic absorption member central authorities are provided with a hollow bulb, this hollow bulb just can turn end for this of this driver element and place wherein.
Preferably, this ring group edge of this driver element can be external thread section form, and this spacing ring group portion of this magnet ring cover unit can be internal thread segment form, the ring group edge making this external thread section form just can spiral shell group in the spacing ring group portion of this internal thread segment form;
Preferably, this ring group edge of this driver element can be outer ring flange form, and this spacing ring group portion of this magnet ring cover unit can be inner ring flange form, the central authorities of spacing ring group portion of this inner ring flange form are provided with a undergauge guide hole, make the ring group edge of this outer ring flange form just can be directed in the spacing ring group portion of this inner ring flange form.
Preferably, this ring group edge of this driver element can be outer shroud inclined-plane section form, and this spacing ring group portion of this magnet ring cover unit can be inner ring inclined-plane section form, the central authorities of spacing ring group portion of this inner ring inclined-plane section form are provided with a undergauge guide hole, make the ring group edge of this outer shroud inclined-plane section form just can be directed in the spacing ring group portion of this inner ring inclined-plane section form.
Preferably, this turn unit this turn end and can be cross bottle opener end form or non-round bottle opener end form.
Preferably, this driving body of this driver element and this drive end can be the screwdriver head form of hexagonal section; Then this driver element also can comprise the driving body of a hexagonal section screwdriver head form, this external sheathing of this driving is provided with a guide pin bushing body, this guide pin bushing body inner core segment is formed with one group and establishes space, this group is established in space and is covered with a Fixing shrink ring, this Fixing shrink ring inside is installed with a magnetic part, and this guide pin bushing body is provided with at least one top supporting part to driving body precalculated position, and this driving body this top supporting part relative is provided with a joint portion, makes this guide pin bushing body be fixedly arranged on this driving body according to this; Moreover this driver element also can comprise two in conjunction with external member, this is two in conjunction with being provided with a flexible section between external member, wherein one be provided with in conjunction with external member driving body and the drive end that is hexagonal section screwdriver head form, another is provided with one in conjunction with external member one end and turns unit, this turns unit and includes one and be installed with room, this is installed with chamber interior and is provided with a copper sheathing, and this copper sheathing inside is provided with a magnet, is provided with a socket section before this magnet; Then this driver element also can comprise a L-shaped body of rod form, make two ends respectively be provided with one and turn unit, this turns unit and includes a neck section of stretching, this neck section of stretching is axially set in one end of this driving body, and the magnetic that this neck section of stretching this driving body one end relative is formed with a loop order edge form draws face, this magnetic draws face and makes for having magnetic material, and the another end axle of this neck section of stretching is provided with a ring group edge, and what this ring group edge one end was provided with a non-circular cylindricality state turns end; This driver element also can comprise the drive end that is lever form again, and this drive end one end is extended with the driving body that is straight-bar form, and this driving body tip is connected with one and turns unit; Then this driver element can be the driving body comprising a sleeve shaped state, this driving body one end is provided with a non-circular fit slot, this fit slot can sheathed assembling this turn unit, this turns unit pre-determined bit and is provided with a chimeric edge inlay card and locates this driving body interior precalculated position, and the another end of this driving body is provided with a drive end in palm grip knob form; This driver element can be the driving body comprising a pair of screwdriver head form again, these driving body two ends are provided with pearl annular groove, make this this turn two terminal positions that unit is located at this driver element respectively, and this turn unit two ends turn end be respectively cross and the bottle opener end form of yi word pattern.
Preferably, this this magnetic turning unit draws face is that tool magnetic metal material is made.
Innovate unique design by this, make the utility model by this spacing room of this magnet ring cover unit inside, and can according to magnetic spacing change and quick sliding displacement in this ring group edge of this driver element, and the radial width of this magnet ring cover unit of the present utility model just can be contained in the counterbore of general fixture, thus can use by fast driving assembly, and then reach the practical improvement easily in use.
Accompanying drawing explanation
Fig. 1 is the stereogram that instrument of the present utility model connects the magnetic structure of end.
Fig. 2 is the exploded perspective view that instrument of the present utility model connects the magnetic structure of end.
Fig. 3 is the view sub-anatomy that instrument of the present utility model connects the magnetic structure of end.
Fig. 4 is the action schematic diagram one that instrument of the present utility model connects the magnetic structure of end.
Fig. 5 is the action schematic diagram two that instrument of the present utility model connects the magnetic structure of end.
Fig. 6 is the action schematic diagram three that instrument of the present utility model connects the magnetic structure of end.
Fig. 7 is the schematic diagram that the instrument of prior art connects the magnetic structure of end.
Fig. 8 is another enforcement illustration that instrument of the present utility model connects the magnetic structure of end.
Fig. 9 is the enforcement illustration again that instrument of the present utility model connects the magnetic structure of end.
Figure 10 is the another enforcement illustration that instrument of the present utility model connects the magnetic structure of end.
Figure 11 is another enforcement illustration that instrument of the present utility model connects the magnetic structure of end.
Figure 12 is the enforcement illustration again that instrument of the present utility model connects the magnetic structure of end.
Figure 13 is the another enforcement illustration that instrument of the present utility model connects the magnetic structure of end.
Figure 14 is another enforcement illustration that instrument of the present utility model connects the magnetic structure of end.
Figure 15 is the another enforcement illustration that instrument of the present utility model connects the magnetic structure of end.
Reference numeral
Existing part
1 sleeve 2 turns end
3 tool body 4 drive ends
The utility model
10 driver elements 11 drive body
12 drive ends 20 turn unit
21 turn end 22 ring group edge
The 23 neck section of stretching 24 magnetic draw face
30 magnet ring cover unit 31 sleeve body
32 spacing room 33 spacing ring group portions
34 accommodation space 40 magnetic absorption member
41 hollow bulb 50 assemblies
51 turn portion 60 fixture
61 connecting piece 62 counterbores
70 driven tool 22a ring group edge
33a spacing ring group portion 331a undergauge guide hole
22b ring group edge 33b spacing ring group portion
331b undergauge guide hole 10a driver element
11a drives body 12a drive end
13a guide pin bushing body 14a magnetic part
15a Fixing shrink ring 16a group establishes space
17a top supporting part 18a joint portion
10b driver element 11b drives body
12b drive end 13b is in conjunction with external member
14b flexible section 15b is installed with room
16b copper sheathing 20b turns unit
21b is socketed section 23b magnet
10c driver element 11c drives body
20d turns unit 21d and turns end
The 22d ring group edge 23d neck section of stretching
24d magnetic draws face 10d driver element
11d drives body 12d drive end
10e driver element 11e drives body
12e drive end 13e fit slot
14e is fitted together to edge w2 axial depth
H2 radial depth w1 axial length
H1 radial width 10f driver element
11f drives body 12f ring pearl groove
Detailed description of the invention
As shown in figs. 1 to 6, the instrument that basis is utility model connects the preferred embodiment of the magnetic structure of end, and the present embodiment is only for explanation, and patent application is not subject to the restriction of this structure, and it comprises:
One driver element 10, this driver element 10 includes a drive end 12;
One turns unit 20, this turns unit 20 and includes a neck section of stretching 23, this neck section of stretching 23 is axially set in one end of this driving body 11, and the magnetic that this neck section of stretching 23 this driving body 11 one end relative is formed with a loop order edge form draws face 24, and this magnetic draws face 24 and makes for having magnetic metal material; The another end axle of this neck section of stretching 23 another is provided with a ring group edge 22, and this ring group edge 22 one end is provided with one and turns end 21; Wherein this ring group edge 22 of this driver element 10 can be external thread section form, and this spacing ring group portion 33 of this magnet ring cover unit 30 can be internal thread segment form, the ring group edge 22 making this external thread section form just can spiral shell group in the spacing ring group portion 33 of this internal thread segment form; And this turn unit 20 this turn end 21 in the present embodiment be cross bottle opener end form;
One magnet ring cover unit 30, include the sleeve body 31 that is axially hollow, this sleeve body 31 one end inner wall ring week is provided with a spacing ring group portion 33, and the adjacent side shaft in this spacing ring group portion 33 is provided with the circuferential spacing form of a spacing room 32, the axial depth W2 of this spacing room 32 and radial depth H2 is greater than axial length w1 and the radial width h1 of the ring group edge 22 of this spacing ring group portion 33 and this driver element 10, and this neck section of stretching 23 radial width of this driver element 10 is less than the radial width h1 in this spacing ring group portion 33 of this magnet ring cover unit 30, thus after making this spacing ring group portion 33 relatively lead group via this ring group edge 22 of this driver element 10, making this ring group edge 22 can depart from this spacing ring group portion 33 enters in this spacing room 32, and it is spacing to make this ring group edge 22 this spacing ring group portion 33 relative produce block, the another end of another this magnet ring cover unit 30 is provided with an accommodation space 34 be connected with this spacing room 32, this accommodation space 34 has been installed with a magnetic absorption member 40, and these magnetic absorption member 40 central authorities are provided with a hollow bulb 41, this hollow bulb 41 just can turn end 21 for this of this driver element 10 and place wherein.
As shown in Figures 4 and 5, this turning unit 20 when this turns end 21 under the normality in the portion that turns 51 of not adsorbing any screw assembly 50, this magnetic absorption member 40 is adsorbed in this this magnetic turning unit 20 and draws face 24, before this spacing room 32 of this sleeve body 31 simultaneously, end movement is resisted against this ring group edge 22 front-end edge, and make this turn end 21 to expose more part, this turning that end 21 adsorbs this screw assembly 50 until this is when turning end 21, face 24 is drawn because this magnetic absorption member 40 is less than with the magnetic spacing of this screw assembly 50 this magnetic turning unit 20 with this, and make this spacing room 32 of this sleeve body 31 towards this screw assembly 50 displacement, thus this making this screw assembly 50 turns the periphery that end 21 outer rim is adsorbed in this magnetic absorption member 40.
As shown in Figure 6, when the utility model is for implementing, this drive end 12 of this driver element 10 of Schilling is needed to be sheathed on a driven tool 70, and make this magnet ring overlap unit 30 being embedded in this fixture 60 with counterbore 62 and connecting piece 61, and assembly 50 is screwed into smoothly make combination assembled with one another in this fixture 60 and this connecting piece 61.
As shown in Figure 8, its another embodiment of the present utility model, wherein this ring group edge 22a of this driver element 20 can be outer ring flange form, and this spacing ring group portion 33a of this magnet ring cover unit 30 can be inner ring flange form, the 33a central authorities of spacing ring group portion of this inner ring flange form are provided with a undergauge guide hole 331a, make the ring group edge 22a of this outer ring flange form just can be directed in the spacing ring group portion 33a of this inner ring flange form.
As shown in Figure 9, its embodiment more of the present utility model, wherein this ring group edge 22b of this driver element 20 can be outer shroud inclined-plane section form, and this spacing ring group portion 33b of this magnet ring cover unit 30 can be inner ring inclined-plane section form, the 33b central authorities of spacing ring group portion of this inner ring inclined-plane section form are provided with a undergauge guide hole 331b, make the ring group edge 22b of this outer shroud inclined-plane section form just can be directed in the spacing ring group portion 33b of this inner ring inclined-plane section form.
As shown in Figure 10, its another embodiment of the present utility model, wherein this driver element 10a also can comprise the driving body 11a of a hexagonal section screwdriver head form, the outer sheathing of this driving body 11a is provided with a guide pin bushing body 13a, this guide pin bushing body 13a inner core segment is formed with one group and establishes space 16a, this group is established in the 16a of space and is covered with a Fixing shrink ring 15a, this Fixing shrink ring 15a inside is installed with a magnetic part 14a, and this guide pin bushing body 13a is provided with at least one top supporting part 17a to driving body 11a precalculated position, and relative this top supporting part 17a of this driving body 11a is provided with a joint portion 18a, this guide pin bushing body 13a is made to be fixedly arranged on this driving body 11a according to this.
As shown in figure 11, its another embodiment of the present utility model, wherein this driver element 10b also can comprise two in conjunction with external member 13b, this is two in conjunction with being provided with a flexible section 14b between external member 13b, wherein one be provided with in conjunction with external member 13b driving body 11b and the drive end 12b that is hexagonal section screwdriver head form, another is provided with one in conjunction with external member 13b one end and turns unit 20b, this turns unit 20b and includes one and be installed with room 15b, this is installed with 15b inside, room and is provided with a copper sheathing 16b, this copper sheathing 16b inside is provided with a magnetic MTR 23b, is provided with a socket section 21b before this magnetic MTR 23b.
As shown in figure 12, its embodiment more of the present utility model, wherein this driver element 10c also can comprise a L-shaped body of rod form, make two ends respectively be provided with one and turn unit 20d, this turns unit 20d and includes the neck section of a stretching 23d, this neck section of stretching 23d is axially set in one end of this driving body 11c, and the magnetic that this neck section of stretching 23d this driving body 11c one end relative is formed with a loop order edge form draws face 24d, this magnetic draws face 24d and makes for having magnetic material, and the another end axle of this neck section of stretching 23d is provided with a ring group edge 22d, this ring group edge 22d one end is provided with turning of a non-circular cylindricality state and holds 21d.
As shown in figure 13, its another embodiment of the present utility model, wherein this driver element 10d also can comprise the drive end 12d that is lever form, and this drive end 12d one end is extended with the driving body 11d that is straight-bar form, and this driving body 11d end is connected with one and turns unit 20.
As shown in figure 14, its another embodiment of the present utility model, wherein this driver element 10e can be the driving body 11e that also can comprise a sleeve shaped state, this driving body 11e one end is provided with a non-circular fit slot 13e, this fit slot 13e can sheathed assembling this turn unit 20, this turns unit 20 pre-determined bit and is provided with a chimeric edge 14e inlay card and locates this driving body 11e predetermined interior position, and the another end of this driving body 11e is provided with a drive end 12e in palm grip knob form.
As shown in figure 15, its another embodiment of the present utility model, wherein this driver element 10f can be the driving body 11f comprising a pair of screwdriver head form, these driving body 11f two ends are provided with pearl annular groove 12f, make this this turn two terminal positions that unit 20 is located at this driver element 10f respectively, and this end 21 that turns turning unit 20 two ends is respectively cross and the bottle opener end form of yi word pattern.
By this, the utility model is by this spacing room of this magnet ring cover unit inside, and can according to magnetic spacing change and quick sliding displacement in this ring group edge of this driver element, and the radial width of this magnet ring cover unit of the present utility model can be contained in the counterbore of general fixture, thus can use by fast driving assembly, and then the practicality easily reached in use and creativeness.
Claims (7)
1. instrument connects a magnetic structure for end, it is characterized in that, comprising:
One driver element, this driver element includes a drive end;
One turns unit, and this turns unit and includes a neck section of stretching, and this neck section of stretching is axially set in one end of this driving body, and this neck section of stretching magnetic that relatively this driving body one end is formed with a loop order edge form draws face, and this magnetic draws face for having magnetic material and makes; The another end axle of this neck section of stretching another is provided with a ring group edge, and this ring group edge one end is provided with one and turns end;
One magnet ring cover unit, include the sleeve body that is axially hollow, this sleeve body one end inner wall ring week is provided with a spacing ring group portion, and the adjacent side shaft in this spacing ring group portion is provided with the circuferential spacing form of a spacing room, the axial depth of this spacing room and radial depth are greater than axial length and the radial width of the ring group edge of this spacing ring group portion and this driver element, and this neck section of stretching radial width of this driver element is less than the radial width in this spacing ring group portion of this magnet ring cover unit, thus after making this spacing ring group portion relatively lead group via this ring group edge of this driver element, making this ring group edge can depart from this spacing ring group portion enters in this spacing room, and it is spacing to make this ring group edge produce block relative to this spacing ring group portion, the another end of another this magnet ring cover unit is provided with an accommodation space be connected with this spacing room, this accommodation space has been installed with a magnetic absorption member, and these magnetic absorption member central authorities are provided with a hollow bulb, this hollow bulb just can turn end for this of this driver element and place wherein.
2. instrument as claimed in claim 1 connects the magnetic structure of end, it is characterized in that, this ring group edge of this driver element can be external thread section form, and this spacing ring group portion of this magnet ring cover unit can be internal thread segment form, the ring group edge making this external thread section form just can spiral shell group in the spacing ring group portion of this internal thread segment form.
3. instrument as claimed in claim 1 connects the magnetic structure of end, it is characterized in that, this ring group edge of this driver element can be outer ring flange form, and this spacing ring group portion of this magnet ring cover unit can be inner ring flange form, the central authorities of spacing ring group portion of this inner ring flange form are provided with a undergauge guide hole, make the ring group edge of this outer ring flange form just can be directed in the spacing ring group portion of this inner ring flange form.
4. instrument as claimed in claim 1 connects the magnetic structure of end, it is characterized in that, this ring group edge of this driver element can be outer shroud inclined-plane section form, and this spacing ring group portion of this magnet ring cover unit can be inner ring inclined-plane section form, the central authorities of spacing ring group portion of this inner ring inclined-plane section form are provided with a undergauge guide hole, make the ring group edge of this outer shroud inclined-plane section form just can be directed in the spacing ring group portion of this inner ring inclined-plane section form.
5. instrument as claimed in claim 1 connects the magnetic structure of end, it is characterized in that, this turn unit this turn end and can be cross bottle opener end form or non-round bottle opener end form.
6. instrument as claimed in claim 1 connects the magnetic structure of end, and it is characterized in that, this driving body of this driver element and this drive end can be the screwdriver head form of hexagonal section; Then this driver element also can comprise the driving body of a hexagonal section screwdriver head form, this external sheathing of this driving is provided with a guide pin bushing body, this guide pin bushing body inner core segment is formed with one group and establishes space, this group is established in space and is covered with a Fixing shrink ring, this Fixing shrink ring inside is installed with a magnetic part, and this guide pin bushing body is provided with at least one top supporting part to driving body precalculated position, and this driving body this top supporting part relative is provided with a joint portion, makes this guide pin bushing body be fixedly arranged on this driving body according to this; Moreover this driver element also can comprise two in conjunction with external member, this is two in conjunction with being provided with a flexible section between external member, wherein one be provided with in conjunction with external member driving body and the drive end that is hexagonal section screwdriver head form, another is provided with one in conjunction with external member one end and turns unit, this turns unit and includes one and be installed with room, this is installed with chamber interior and is provided with a copper sheathing, and this copper sheathing inside is provided with a magnet, is provided with a socket section before this magnet; Then this driver element also can comprise a L-shaped body of rod form, make two ends respectively be provided with one and turn unit, this turns unit and includes a neck section of stretching, this neck section of stretching is axially set in one end of this driving body, and the magnetic that this neck section of stretching this driving body one end relative is formed with a loop order edge form draws face, this magnetic draws face and makes for having magnetic material, and the another end axle of this neck section of stretching is provided with a ring group edge, and what this ring group edge one end was provided with a non-circular cylindricality state turns end; This driver element also can comprise the drive end that is lever form again, and this drive end one end is extended with the driving body that is straight-bar form, and this driving body tip is connected with one and turns unit; Then this driver element can be the driving body comprising a sleeve shaped state, this driving body one end is provided with a non-circular fit slot, this fit slot can sheathed assembling this turn unit, this turns unit pre-determined bit and is provided with a chimeric edge inlay card and locates this driving body interior precalculated position, and the another end of this driving body is provided with a drive end in palm grip knob form; This driver element can be the driving body comprising a pair of screwdriver head form again, these driving body two ends are provided with pearl annular groove, make this this turn two terminal positions that unit is located at this driver element respectively, and this turn unit two ends turn end be respectively cross and the bottle opener end form of yi word pattern.
7. instrument as claimed in claim 1 connects the magnetic structure of end, and it is characterized in that, it is that tool magnetic metal material is made that this this magnetic turning unit draws face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520289423.XU CN204772299U (en) | 2015-05-07 | 2015-05-07 | Instrument connects magnetism of end to inhale structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520289423.XU CN204772299U (en) | 2015-05-07 | 2015-05-07 | Instrument connects magnetism of end to inhale structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204772299U true CN204772299U (en) | 2015-11-18 |
Family
ID=54512424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520289423.XU Expired - Fee Related CN204772299U (en) | 2015-05-07 | 2015-05-07 | Instrument connects magnetism of end to inhale structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204772299U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909935A (en) * | 2018-05-15 | 2019-06-21 | 程蕾 | A kind of cutter head for electric screw driver |
-
2015
- 2015-05-07 CN CN201520289423.XU patent/CN204772299U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909935A (en) * | 2018-05-15 | 2019-06-21 | 程蕾 | A kind of cutter head for electric screw driver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20151118 Termination date: 20160507 |
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| CF01 | Termination of patent right due to non-payment of annual fee |