CN105437162A - Torque output tool and transmission mechanism - Google Patents
Torque output tool and transmission mechanism Download PDFInfo
- Publication number
- CN105437162A CN105437162A CN201410308026.2A CN201410308026A CN105437162A CN 105437162 A CN105437162 A CN 105437162A CN 201410308026 A CN201410308026 A CN 201410308026A CN 105437162 A CN105437162 A CN 105437162A
- Authority
- CN
- China
- Prior art keywords
- transmission mechanism
- impact block
- output shaft
- impact
- inner housing
- 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.)
- Granted
Links
Landscapes
- Percussive Tools And Related Accessories (AREA)
Abstract
The invention discloses a transmission mechanism, comprising: the device comprises an inner shell, an output shaft, a front stopper, a front impact block, a rear stopper, a rear impact block and a biasing element; the output shaft and the inner shell form sliding connection in the axial direction; the front stopper and the output shaft form fixed connection in the axial direction and form rotary connection in the circumferential direction, and the front stopper and the inner shell are fixed in position in the circumferential direction; the front impact block and the output shaft form fixed connection in the axial direction and the circumferential direction, and front impact teeth are formed on the front impact block; the back strikes piece and interior casing and all fixes in position on axial and week, and the back strikes the piece and includes: a body portion and an impact projection, the impact projection forming a rear impact tooth; the backstop includes: the rear blocking piece and the rear impact block form rotating connection and are limited in the axial direction by the step structure formed by the impact protruding part and the body part. The transmission mechanism of the invention can be freely switched between a drilling mode and a hammering mode.
Description
Technical field
The present invention relates to a kind of moment of torsion and export instrument, be specifically related to a kind ofly the moment of torsion of switching working mode to export instrument and transmission mechanism.
Background technology
People, in the process using existing electric tool, wish that on the one hand electric tool can continuous operation, to be used as electric drill by electric tool, wish again the impact work that electric tool can be interrupted, to be used as hammer drill by electric tool on the other hand.And in the course of the work, staff often needs ceaselessly to change use electric drill or hammer drill, like this, then need to change electric tool frequently, not only cause operating efficiency to reduce, but also have a strong impact on the service life of electric tool.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide and a kind ofly can cut in drill mode and hammer the transmission mechanism freely switched between pattern.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
A kind of transmission mechanism, comprising: inner housing, can be the output shaft of axle pivotable with first axle, and transmission mechanism also comprises: front catch member, front impact block, backup member, impact block, a biased element after one; Output shaft and inner housing form in the axial direction and are slidably connected; Front catch member, front impact block, backup member, rear impact block are all sleeved on output shaft; Front catch member and output shaft form in the axial direction and are fixedly connected with, form in the circumferential and be rotationally connected, and front catch member and inner housing in the circumferential position are fixed; Front impact block and output shaft all form and are fixedly connected with on axial and circumferential, and front impact block is formed with front impact teeth; Rear impact block and inner housing equal position on axial and circumferential is fixed, and rear impact block comprises: body and the impact protuberance be formed on front side of body, impacts protuberance and forms rear impact teeth; Backup member comprises: rear baffle ring and extend radially the backstop leg of rear baffle ring, and backstop ring set is contained in the periphery impacting protuberance, and backup member and rear impact block form and be rotationally connected and be subject to impacting the spacing of protuberance and body forming station stage structure in the axial direction.
Further, front catch member comprises: front baffle ring, radially protrude from front baffle ring connecting portion, protrude from connecting portion backward and can at the backstop protuberance aiming at backstop leg vertically; When the circumferential position that two, ring is different before connecting portion is at least arranged at.
Further, transmission mechanism also comprises: a lining, and lining comprises: bush body and protrude from the location division of bush body in the circumferential; Bush body is formed with the lining bayonet socket that can block connecting portion.
Further, rear impact block also comprises: the extension extending radially body; Inner housing at least has the front suit portion be sleeved on outside lining, and front suit portion is at least provided with the suit groove that can hold location division and the spacing breach that can limit connecting portion and extension circumferential position.
Further, bearing part is provided with between lining and output shaft.
Further, biased element is the helical spring that two ends withstand front catch member and backup member respectively.
Further, transmission mechanism also comprises: can make the operating assembly that backup member is rotated.
Further, at least one the backstop leg in backup member is formed with the department of assembly can assembled with operating assembly.
Further, operating assembly at least comprises an operation ring be rotationally connected with inner housing.
The present invention also proposes a kind of moment of torsion and exports instrument, and it comprises: shell body, motor and above-described transmission mechanism, wherein motor driver output axle.
Usefulness of the present invention is: by the effect of rear shelves part to front shelves part in drive mechanism, make front impact block contact or away from rear impact block, thus transmission mechanism can be cut between pattern and drill mode at hammer freely switch, solve existing electric tool and only there is a kind of mode of operation, awkward problem.
Accompanying drawing explanation
Figure 1 shows that the structural representation of transmission mechanism of the present invention;
Figure 2 shows that the exploded perspective view of the drive mechanism in Fig. 1;
Figure 3 shows that the structural representation of the inner housing in Fig. 2;
Figure 4 shows that the structural representation of the front catch member in Fig. 2;
Figure 5 shows that the structural representation of the lining in Fig. 2;
Figure 6 shows that the structural representation of the front impact block in Fig. 2;
Figure 7 shows that the structural representation of the rear impact block in Fig. 2.
Figure 8 shows that the structural representation of the backup member in Fig. 2;
The backup member that Figure 9 shows that in Fig. 2 is sheathed on the structural scheme of mechanism on rear impact block;
Figure 10 shows that the torque output device with transmission mechanism of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, concrete introduction is done to the present invention.
The present invention proposes a kind of transmission mechanism, this transmission mechanism can be used in electric tool, electric tool can be made to switch between different mode of operations, and such as, in percussion drill, this drive mechanism can make this percussion drill cut between pattern in drill mode and hammer freely to switch.
Figure 1 shows that the structural representation of transmission mechanism of the present invention; Figure 2 shows that the exploded perspective view of the drive mechanism in Fig. 1.Please with reference to Fig. 1 and Fig. 2, transmission mechanism 100 of the present invention comprises: inner housing 110, output shaft 120, front catch member 130, lining 140, bearing part 150, front impact block 160, backup member 170, rear impact block 180, biased element 190, the wherein shell of transmission mechanism 100 invented as you of inner housing 110, for accommodating miscellaneous part, output shaft 120 has the first axle Y through self, and can with this first axle Y for axle pivotable.Below conveniently technical scheme of the present invention is got across, make as given a definition: the direction defining the first axle Y place of output shaft 120 and the direction being parallel to first axle Y are axis, direction perpendicular to axial direction is radial, direction around axis is circumference, also be defined in axially towards the output 121 of output shaft 120 for front, after towards the other end of output shaft 120 being, above definition is not as restriction essentiality content of the present invention.
Figure 3 shows that the structural representation of the inner housing in Fig. 2.Please with reference to Fig. 1 to Fig. 3, suit portion 111 before inner housing 110 comprises one, front suit portion 111 is sleeved on the outside of lining 140, for accommodating front catch member 130, front impact block 160, backup member 170 and rear impact block 180, front suit portion 111 is also provided with suit groove 111a and spacing breach 111b, suit groove 111a is the groove that the sidewall in front suit portion 111 extends radially outward, suit groove 111a at least comprises the different groove of two circumferential positions, and it is for being fixed in front suit portion 111 by front catch member 130 and lining 140 circumference; Spacing breach 111b is opened on the sidewall in front suit portion 111, and it extends vertically, for rear impact block 180 circumference being fixed in front suit portion 111.And spacing breach 111b is distributed in the different circumferential position of front suit portion 111 sidewall from suit groove 111a.
Output shaft 120 is for output torque, it comprises an output 121, output 121 is as the final torsion output block of transmission mechanism 100 of the present invention, through the center of inner housing 110, form in the axial direction with inner housing 110 and be slidably connected, and can rotate relative to inner housing 110 circumference, and front catch member 130, front impact block 160, backup member 170, rear impact block 180 are all sleeved on output shaft 120.
Figure 4 shows that the structural representation of the front catch member in Fig. 2.Please with reference to Fig. 2 and Fig. 4, front catch member 130 is sheathed on output shaft 120, and form in the axial direction with output shaft 120 and be fixedly connected with, and form with output shaft 120 in the circumferential and be rotationally connected, thus front catch member 130 can along with output shaft 120 synchronizing moving in the axial direction, and output shaft 120 can the independent pivotable of front catch member 130 relatively in the circumferential.In the present embodiment, front catch member 130 comprises: front baffle ring 131, connecting portion 132 and backstop protuberance 133, and front baffle ring 131 is sheathed on output shaft 120; Connecting portion 132 is the projection extended radially outwardly along front baffle ring 131, in the present embodiment, connecting portion 132 is at least arranged at two circumferential position of front baffle ring 131, correspondence can embed in the suit groove 111a on front suit portion 111 sidewall of inner housing 110, thus make front catch member 130 circumference to be fixed in inner housing 110; Backstop protuberance 133 protrudes vertically backward from connecting portion 132, and backstop protuberance 133 can coordinate with backup member 170 front catch member 130 can not be moved in the axial direction backward.The circumferential position of the relative inner housing 110 of the front catch member 130 in the present invention is fixed, and and radial direction is extended and had connecting portion 132 in front catch member 130, structure is simple, and connecting portion 132 also can be used as the support component of front catch member 130, thus make the requirement of front catch member 130 pairs of self-strength lower, thus front catch member 130 can make the shaping powdered metal parts of common process.
Figure 5 shows that the structural representation of the lining in Fig. 2.Please with reference to Fig. 2 and Fig. 5, lining 140 is sheathed on output shaft 120, and bearing part 150 is located between lining 140 and output shaft 120.Lining 140 comprises: bush body 141 and location division 142, bush body 141 is formed a lining bayonet socket 143, and lining bayonet socket 143 can block the connecting portion 132 in front catch member 130, thus front catch member 130 is fixing relatively in the circumferential to make lining 140; Location division 142 is the projection extended radially outwardly along bush body 141, and location division 142 protrudes from bush body 141 in the circumferential, location division 142 can embed in the suit groove 111a on front suit portion 111 sidewall of inner housing 110, thus lining 140 is fixed in inner housing 110 in the circumferential.
Figure 6 shows that the structural representation of the front impact block in Fig. 2; Figure 7 shows that the structural representation of the rear impact block in Fig. 2.Please with reference to Fig. 2, Fig. 6 and Fig. 7, front impact block 160 and output shaft 120 all form and are fixedly connected with on axial and circumferential, thus front impact block 160 can along with output shaft 120 pivot in unison be again along with output shaft 120 moves in the axial direction, in the present embodiment, on front impact block 160, impact teeth 161 before pattern cut by the hammer be also formed for realizing transmission mechanism 100.Rear impact block 180 comprises body 181, extension 182 and impacts protuberance 183, and body 181 is arranged in inner housing 110, thus makes rear impact block 180 inner housing 110 axial restraint relatively; Extension 182 extends radially body 181, and in the suit groove 111a that can embed on front suit portion 111 sidewall of inner housing 110 and spacing breach 111b, thus relative inner housing 110 circumferential position of rear impact block 180 is fixed; Impact the front side that protuberance 183 is formed at body 181, impact on protuberance 183 and yet forms both the rear impact teeth 184 corresponding with front impact teeth 161 on front impact block 160, thus rear impact block 180 and front impact block 160 make transmission mechanism 100 of the present invention can be in hammer by rear impact teeth 184 with the percussion of front impact teeth 161 cuts pattern.
Figure 8 shows that the structural representation of the backup member in Fig. 2; The backup member that Figure 9 shows that in Fig. 2 is sheathed on the structural scheme of mechanism on rear impact block.Please with reference to Fig. 2, Fig. 8 and Fig. 9, backup member 170 is arranged between front impact block 160 and rear impact block 180, it comprises: rear baffle ring 171 and backstop leg 172, rear baffle ring 171 is rotating is sleeved on the periphery impacting protuberance 183, backup member 170 can be rotated relative to rear impact block 180 in the circumferential, and in the axial direction, because rear baffle ring 171 is subject to the spacing of the ledge structure formed between the impact protuberance 183 of rear impact block 180 and body 181, the relatively rear in the axial direction impact block 180 of backup member 170 is fixed.Backstop leg 172 radially extends rear baffle ring 171, and align with the position of the backstop protuberance 133 in front catch member 130 in the circumferential and backstop protuberance 133 can be propped up, backstop leg 172 is also through the suit groove 111a on front suit portion 111 sidewall of inner housing 110, and the circumferential lengths of backstop leg 172 is less than the circumferential lengths of backstop protuberance 133, thus under the restriction of suit groove 111a, inner housing 110 circumference is fixing relatively for backstop protuberance 133, and backstop leg 172 can move in the circumferential lengths of suit groove 111a, thus inner housing 110 circumference is fixing relatively to make front catch member 130, backup member 170 can be rotated relative to inner housing 110 circumference.Like this, when backup member 170 under external force relatively inner housing 110 circumference turn to backstop leg 172 prop up the backstop protuberance 133 of front catch member 130 time, front catch member 130 then can not move in the axial direction backward, make output shaft 120 and the front impact block 160 be fixed on output shaft 120 can not move backward, thus front impact block 160 does not reach rear impact block 180 and cannot mating reaction, and then now transmission mechanism 100 of the present invention is made to be in drill mode; And when backup member 170 under external force relatively inner housing 110 circumference turn to backstop leg 172 do not prop up the backstop protuberance 133 of front catch member 130 time, front catch member 130 can move in the axial direction backward, make output shaft 120 and the front impact block 160 be fixed on output shaft 120 also moves backward, thus front impact block 160 can touch rear impact block 180 forms and coordinate, and then make now transmission mechanism 100 of the present invention be in hammer to cut pattern.In the present invention, backup member 170 is arranged on rear impact block 180, has rear impact block 180 as support, and self-strength requires low, so backup member 170 can make thin-walled stamping parts.
Biased element 190 bias voltage arranges between front catch member 130 and backup member 170, front catch member 130 and output shaft 120 are moved forward in the lump vertically, in the present embodiment, biased element 190 is the helical spring that two ends withstand front catch member 130 and backup member 170 respectively.
In the present embodiment, transmission mechanism 100 also comprises an operating assembly (figure does not mark), and operating assembly can make backup member 170 rotate relative to inner housing 110 in the circumferential.Concrete, the backstop leg 172 of backup member 170 is also formed a department of assembly 172a, operating assembly comprises operation ring 211 and operating parts 212, operation ring 211 is rotationally connected with inner housing 110, operation ring 211 is also provided with a structure coordinated with department of assembly 172a, make, when operation ring 211 rotates relative to inner housing 110 circumference, to drive the backstop leg 172 circumference rotation in the lump of backup member 170; Operating parts 212 is for for user operation, and when user applies external force on operating parts 212, operating parts 212 can drive operation ring 211 to rotate relative to inner housing 110.
Figure 10 shows that the torque output device with transmission mechanism of the present invention.Please with reference to Fig. 1 and Fig. 9, the present invention also proposes a kind of moment of torsion and exports instrument 300, such as this moment of torsion exports instrument 300 can be percussion drill, moment of torsion output instrument 300 comprises the transmission mechanism 100 in shell body 310, motor (figure does not mark) and the present invention, motor is used for the output shaft 120 in drive transmission device 100, by switching the pattern of this drive mechanism, moment of torsion of the present invention output instrument 300 can be cut between pattern in drill mode and hammer and freely switch.
More than show and describe general principle of the present invention, principal character and advantage.The technical staff of the industry should understand, and above-described embodiment does not limit the present invention in any form, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection scope of the present invention.
Claims (10)
1. a transmission mechanism, comprising: inner housing, can be the output shaft of axle pivotable with first axle, and it is characterized in that, described transmission mechanism also comprises: front catch member, front impact block, backup member, impact block, a biased element after one; Described output shaft and described inner housing form in the axial direction and are slidably connected; Described front catch member, front impact block, backup member, rear impact block are all sleeved on described output shaft; Described front catch member forms in the axial direction with described output shaft and is fixedly connected with, forms in the circumferential and be rotationally connected, and described front catch member and described inner housing are fixed position in the circumferential; Described front impact block and described output shaft all form and are fixedly connected with on axial and circumferential, and described front impact block is formed with front impact teeth; Described rear impact block and described inner housing equal position on axial and circumferential is fixed, and described rear impact block comprises: body and the impact protuberance be formed on front side of described body, and described impact protuberance forms rear impact teeth; Described backup member comprises: rear baffle ring and the backstop leg extending radially described rear baffle ring, described backstop ring set is contained in the periphery of described impact protuberance, and described backup member and described rear impact block form and be rotationally connected and be subject to the spacing of described impact protuberance and described body forming station stage structure in the axial direction.
2. transmission mechanism according to claim 1, it is characterized in that, described front catch member comprises: front baffle ring, radially protrude from described front baffle ring connecting portion, protrude from described connecting portion backward and can at the backstop protuberance aiming at described backstop leg vertically; Described connecting portion is at least arranged at the described front circumferential position different when two, ring.
3. transmission mechanism according to claim 2, is characterized in that, described transmission mechanism also comprises: a lining, and described lining comprises: bush body and protrude from the location division of described bush body in the circumferential; Described bush body is formed with the lining bayonet socket that can block described connecting portion.
4. transmission mechanism according to claim 3, is characterized in that, described rear impact block also comprises: the extension extending radially described body; Described inner housing at least has the front suit portion be sleeved on outside described lining, and described front suit portion is at least provided with the suit groove that can hold described location division and the spacing breach that can limit described connecting portion and described extension circumferential position.
5. transmission mechanism according to claim 2, is characterized in that, is provided with bearing part between described lining and described output shaft.
6. transmission mechanism according to claim 1, is characterized in that, described biased element is the helical spring that two ends withstand described front catch member and described backup member respectively.
7. transmission mechanism according to claim 1, is characterized in that, described transmission mechanism also comprises: can make the operating assembly that described backup member is rotated.
8. transmission mechanism according to claim 7, is characterized in that, backstop leg described at least one in described backup member is formed with the department of assembly can assembled with described operating assembly.
9. transmission mechanism according to claim 8, is characterized in that, described operating assembly at least comprises an operation ring be rotationally connected with described inner housing.
10. moment of torsion exports an instrument, and comprising: shell body, motor, is characterized in that, also comprises: the transmission mechanism as described in claim 1 to 9 any one, described motor drives described output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410308026.2A CN105437162B (en) | 2014-06-30 | 2014-06-30 | Torque output tool and transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410308026.2A CN105437162B (en) | 2014-06-30 | 2014-06-30 | Torque output tool and transmission mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105437162A true CN105437162A (en) | 2016-03-30 |
| CN105437162B CN105437162B (en) | 2017-08-29 |
Family
ID=55548034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410308026.2A Active CN105437162B (en) | 2014-06-30 | 2014-06-30 | Torque output tool and transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105437162B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114074313A (en) * | 2020-08-20 | 2022-02-22 | 南京德朔实业有限公司 | Multifunctional percussion drill |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3835715A (en) * | 1972-07-13 | 1974-09-17 | Black & Decker Mfg Co | Hammer drill mechanism |
| DE9404069U1 (en) * | 1994-03-10 | 1994-06-30 | Fan Chang, We Chuan, Taichung | Impact turning tool |
| CN101318232A (en) * | 2008-07-03 | 2008-12-10 | 陈会甫 | Multifunctional percussion drill |
| CN101797744A (en) * | 2009-02-05 | 2010-08-11 | 创科电动工具科技有限公司 | Power tool chuck assembly with hammer mechanism |
| CN102431013A (en) * | 2011-09-13 | 2012-05-02 | 南京久驰机电实业有限公司 | Electric drill with driving mode switching |
| CN102615633A (en) * | 2012-04-18 | 2012-08-01 | 浙江皇冠电动工具制造有限公司 | Multifunctional electric drill with functions capable of being conveniently switched |
-
2014
- 2014-06-30 CN CN201410308026.2A patent/CN105437162B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3835715A (en) * | 1972-07-13 | 1974-09-17 | Black & Decker Mfg Co | Hammer drill mechanism |
| DE9404069U1 (en) * | 1994-03-10 | 1994-06-30 | Fan Chang, We Chuan, Taichung | Impact turning tool |
| CN101318232A (en) * | 2008-07-03 | 2008-12-10 | 陈会甫 | Multifunctional percussion drill |
| CN101797744A (en) * | 2009-02-05 | 2010-08-11 | 创科电动工具科技有限公司 | Power tool chuck assembly with hammer mechanism |
| CN102431013A (en) * | 2011-09-13 | 2012-05-02 | 南京久驰机电实业有限公司 | Electric drill with driving mode switching |
| CN102615633A (en) * | 2012-04-18 | 2012-08-01 | 浙江皇冠电动工具制造有限公司 | Multifunctional electric drill with functions capable of being conveniently switched |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114074313A (en) * | 2020-08-20 | 2022-02-22 | 南京德朔实业有限公司 | Multifunctional percussion drill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105437162B (en) | 2017-08-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2535147B1 (en) | Impact tool | |
| EP2404706B1 (en) | Impact tool | |
| US10046450B2 (en) | Mode change knob assembly | |
| EP1563960A3 (en) | Impact driver having a percussion application mechanism which operation mode can be selectively switched between percussion and non-percussion mode | |
| CN203266590U (en) | Handheld machine tool with rotary drum type tool replacement box | |
| JP2017189865A (en) | Rotary fastening device and application method thereof | |
| JP5340881B2 (en) | Impact tool | |
| CN105437162A (en) | Torque output tool and transmission mechanism | |
| CN107538400B (en) | Ratchet spanner | |
| CN106493623A (en) | Polishing class instrument and sander | |
| CN105215915A (en) | Torsion exports instrument | |
| US10252347B2 (en) | Self-locking drill chuck | |
| CN106553160B (en) | Arrangement of clutch and electric hammer with the arrangement of clutch | |
| US20110030985A1 (en) | Impact drill | |
| CN205438464U (en) | Power tool | |
| JP2017154229A (en) | Hammer drill | |
| CN203611224U (en) | Cutter library support structure | |
| CN205166871U (en) | Multi -functional electric hammer of hand -held type | |
| WO2009072770A3 (en) | An extension mechanism of the spindle member for the machine tool | |
| US10518399B2 (en) | Clutch device and power tool with clutch device | |
| JP3180745U (en) | Extension Bar | |
| CN105328623A (en) | Electric tool | |
| WO2017090376A1 (en) | Electrical device | |
| CN203993684U (en) | Electric tool | |
| JP6078850B2 (en) | Adjustable pencil sharpener |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Patentee after: Nanjing Quanfeng Technology Co.,Ltd. Address before: 211106, No. 159, general road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: NANJING CHERVON INDUSTRY Co.,Ltd. |
|
| CP03 | Change of name, title or address |