CN110450579A - A kind of universal wheel position-limit mechanism - Google Patents
A kind of universal wheel position-limit mechanism Download PDFInfo
- Publication number
- CN110450579A CN110450579A CN201910886792.XA CN201910886792A CN110450579A CN 110450579 A CN110450579 A CN 110450579A CN 201910886792 A CN201910886792 A CN 201910886792A CN 110450579 A CN110450579 A CN 110450579A
- Authority
- CN
- China
- Prior art keywords
- hole
- universal wheel
- optical axis
- axle sleeve
- limit mechanism
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 29
- 230000003287 optical effect Effects 0.000 claims abstract description 46
- 230000037431 insertion Effects 0.000 claims abstract 2
- 238000003780 insertion Methods 0.000 claims abstract 2
- 238000013016 damping Methods 0.000 claims description 13
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 235000013351 cheese Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/02—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
- B60B33/025—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism by using form-fit, e.g. front teeth
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The present invention relates to a kind of universal wheel position-limit mechanisms, the universal wheel includes traveling wheel, caster bracket, optical axis and axle sleeve, the traveling wheel is supported on caster bracket, the optical axis is set to the upper end of caster bracket and is rotatably connected in axle sleeve, it is characterized by: the position-limit mechanism includes push rod, electromagnet and mounting plate, the electromagnet is fixed on a mounting board, push rod can be movably connected on electromagnet, the axle sleeve is fixed on mounting plate one end, and side wall corresponds to push rod height and position and is equipped with through-hole, the optical axis corresponds to lead to the hole site and is equipped with location hole, push rod moves left and right under the magneticaction of electromagnet, one end corresponding to axle sleeve may pass through through-hole insertion positioning hole；Push rod passes through axle sleeve and is inserted into optical axis universal wheel position-limit mechanism of the invention after powered up by push-down electromagnet, limits to the steering of universal wheel, and make universal wheel that can only carry out steering by a small margin.
Description
Technical field
The present invention relates to a kind of universal wheel position-limit mechanisms, belong to Universal wheel structure design field.
Background technique
Electric wheel-chair vehicle front-wheel is usually universal wheel, in driving process, convenient for turning to, makes to travel more flexible.But In
Cross during ditch, since universal wheel is very flexible, universal wheel falls into ditch and blocks after being easy to 90 ° of deflection, make wheel-chair without
Method moves ahead, at this point, wheel-chair front-wheel can only be carried away from ditch and to move ahead, it is inconvenient.
Summary of the invention
In order to solve the problems in the existing technology the present invention, provides a kind of universal wheel limit that can limit universal wheel rotation
Position mechanism.
In order to achieve the above object, technical solution proposed by the present invention are as follows:
A kind of universal wheel position-limit mechanism, the universal wheel include traveling wheel, caster bracket, optical axis and axle sleeve, the traveling wheel
It is supported on caster bracket, the optical axis is set to the upper end of caster bracket and is rotatably connected in axle sleeve, the limit
Mechanism includes push rod, electromagnet and mounting plate, and the electromagnet is fixed on a mounting board, and push rod can movably be connected to electricity
On magnet, the axle sleeve is fixed on mounting plate one end, and side wall corresponds to push rod height and position and is equipped with through-hole, and the optical axis is corresponding
It is equipped with location hole in lead to the hole site, push rod moves left and right under the magneticaction of electromagnet, and one end corresponding to axle sleeve may pass through
Through-hole is inserted into positioning hole.
In order to still carry out the rotation of certain angle after positioning universal wheel, the positioning bore dia corresponds to greater than push rod
The diameter of one end of axle sleeve.
For being further designed to for push rod: the position-limit mechanism further includes shaft end set, and the push rod corresponds to axle sleeve
One end is formed by push rod corresponding end fixed connection shaft end cap, and push rod is covered by shaft end is inserted into positioning hole across through-hole.
For convenience that axle sleeve is fixed on a mounting board, the mounting plate is a rectangular tube, the upper end of the rectangular tube one end
The mounting hole matched with axle sleeve is respectively equipped on face and lower end surface, the vertical radial position that side end face corresponds to mounting hole is equipped with
Unthreaded hole, the axle sleeve are equipped with the first threaded hole in the unthreaded hole position for corresponding to mounting plate, and axle sleeve is being installed by being socketed mounting hole
Make the positioning of in-plane on plate, and is worn by the first screw and to connect unthreaded hole first threaded hole that is spirally connected and be fixedly connected on mounting plate one
End.
In order to realize the relative rotation between axle sleeve and optical axis, deep-groove ball axis is respectively set in the upper and lower part of the optical axis
It holds and thrust ball bearing.
The axle sleeve top and bottom are respectively equipped with upper bearing aperture and lower bearing aperture, and lower bearing aperture upper end is equipped with shaft shoulder face,
Make axially position in lower end surface of the axle sleeve by shaft shoulder face paste together in mounting plate.
The second threaded hole is equipped with along axis at the top of the optical axis, and the second screw is spirally connected the second threaded hole, and passes through the second spiral shell
The nut bottom of nail connects deep groove ball bearing inner ring and is fixed on optical axis tight against deep groove ball bearing inner ring.
It is equipped between at the top of the nut bottom of second screw and deep groove ball bearing inner ring and loosens washer.
The upper and lower part of the optical axis is respectively provided with the first connecting portion of connection deep groove ball bearing inner ring and is used for
Connect thrust ball bearing second connecting portion, the first connecting portion include be respectively used to the inner ring of deep groove ball bearing position and
First shaft shoulder and the first axle journal of connection, the second connecting portion includes the second axle journal for wearing and supporting thrust ball bearing
With second shaft shoulder.
In order to realize that the damping rotary between axle sleeve and optical axis, the optical axis and axle sleeve correspond to the second axle journal upper end to calmly
The damping sleeve of damping optical axis rotation is provided in space between the hole lower end of position
The optical axis is equipped with the third axle journal for frictional connection damping sleeve,
Optical axis is fixed on caster bracket for convenience, the second shaft shoulder lower end of the optical axis be equipped with for universal wheel branch
4th axle journal of frame connection.
The invention has the benefit that
Push rod is disposed through the through-hole on axle sleeve to universal wheel position-limit mechanism of the invention after powered up by push-down electromagnet
It is inserted into the positioning hole being set on optical axis, to realize that the steering to universal wheel limits, structure is simple, easily operated；This
Bore dia is positioned in invention and is greater than the diameter that push rod corresponds to one end of axle sleeve, can still be carried out by a small margin after positioning universal wheel
It influences normally to advance and turn due to turning to, will not fall into ditch because turning to 90 ° when crossing ditch, while will not lock completely because turning to
It is curved.
Detailed description of the invention
Fig. 1 is the Structure explosion diagram of one position-limit mechanism of the embodiment of the present invention；
Fig. 2 is the universal wheel release conditions figure of Fig. 1 position-limit mechanism；
Fig. 3 is the universal wheel locking states figure of Fig. 1 position-limit mechanism；
Fig. 4 is mounting plate and axle sleeve structure schematic diagram in Fig. 1；
Fig. 5 is mounting plate and axle sleeve connection schematic diagram in Fig. 1；
Fig. 6 is Fig. 3 top view；
Fig. 7 is Fig. 1 bottom bracket axle structural schematic diagram；
Fig. 8 is plain shaft structure schematic diagram in Fig. 1.
In figure: 1- electromagnet, 11- push rod, the shaft end 2- set, 3- mounting plate, 31- mounting hole, 32- unthreaded hole, the first spiral shell of 33-
Nail, 4- axle sleeve, 41- through-hole, the first threaded hole of 42-, 43- upper bearing aperture, 44- lower bearing aperture, 45- shaft shoulder face, 5- optical axis, 51-
Deep groove ball bearing, 511- first connecting portion, first shaft shoulder of 512-, the first axle journal of 513-, 52- damping sleeve, 521- third axle journal 53-
Thrust ball bearing, 531- second connecting portion, second shaft shoulder of 532-, the second axle journal of 533-, 54- location hole, the second threaded hole of 55-,
The second screw of 56-, 57- washer, the 4th axle journal of 58-, 6- traveling wheel, 7- caster bracket.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is described in detail.
Embodiment one
As shown in Figure 1, a kind of universal wheel position-limit mechanism of the present embodiment, universal wheel includes traveling wheel 6, caster bracket 7, optical axis
5 and axle sleeve 4, traveling wheel 6 be supported on caster bracket 7, optical axis 5 is set to the upper end of caster bracket 7 and is rotatably connected on
In axle sleeve 4, the position-limit mechanism of the present embodiment includes push rod 11, electromagnet 1 and mounting plate 3, and electromagnet 1 is fixed on mounting plate 3,
Push rod 11 can be movably connected on electromagnet 1, and axle sleeve 4 is fixed on 3 one end of mounting plate, and side wall corresponds to push rod height
Position is equipped with through-hole 41, as shown in figure 8, optical axis 5, which corresponds to 41 position of through-hole, is equipped with location hole 54 when universal wheel moves forward
When, push rod 11, through-hole 41 and location hole 54 are located along the same line；As shown in connection with fig. 3, it is powered to push-down electromagnet 1, push rod
11 one end of push rod of formula electromagnet 1 across through-hole 41 and can be inserted into positioning under electromagnet effect to close to 4 one Slideslip of axle sleeve
In hole 54, the rotation of optical axis is limited, to limit the steering of universal wheel.Push-down electromagnet 1 powers off as shown in connection with fig. 2, push rod
Location hole 54 and through-hole 41, universal wheel normal direction of rotation are exited to far from 4 one Slideslip of axle sleeve in 11 one end.
Embodiment two
The structure of the present embodiment is the same as example 1, the difference is that push rod 11 is fixedly arranged at the front end with shaft end set in the present embodiment
2, when push rod horizontally slips, shaft end set 2 can protrude into or exit through-hole 41 and location hole 54, in the present embodiment, 41 aperture of through-hole with
2 diameter of guiding axis end cap matches, and 54 aperture of location hole is greater than guiding axis end cap 2, in this way when guiding axis end cap 2 is inserted into location hole
After 54, optical axis can be rotated slightly, when crossing ditch, will not be fallen into ditch because deflecting 90 °.
In conjunction with shown in Fig. 4, Fig. 5 and Fig. 6, mounting plate 3 is a rectangular tube, the upper surface of the rectangular tube one end in the present embodiment
Be respectively equipped with the mounting hole 31 matched with axle sleeve 4 on lower end surface, side end face corresponds to the vertical radial position of mounting hole 31
Equipped with unthreaded hole 32, the axle sleeve 4 is equipped with the first threaded hole 42 in 32 position of unthreaded hole for corresponding to mounting plate, and axle sleeve 4 passes through socket
Mounting hole 31 makees the positioning of in-plane on a mounting board, and is worn by the first screw 33 and to connect unthreaded hole 32 and be spirally connected the first threaded hole 42
It is fixedly connected on 3 one end of mounting plate, the first screw 33 uses the flat cheese head screw of interior hexagonal in the present embodiment.
As shown in connection with fig. 7,4 top and bottom of the present embodiment bottom bracket axle are respectively equipped with upper bearing aperture 43 and lower bearing aperture 44,
44 upper end of lower bearing aperture is equipped with shaft shoulder face 45, and it is axial fixed that the axle sleeve 4 is made by the lower end surface that shaft shoulder face 45 fits in mounting plate 3
Position.
As shown in connection with fig. 8, the upper and lower part of the optical axis 5 is respectively equipped with deep groove ball bearing 51 and thrust ball bearing 53,
The upper and lower part of corresponding optical axis 5 is respectively provided with the first connecting portion 511 of connection 51 inner ring of deep groove ball bearing and uses
In the second connecting portion 531 of connection thrust ball bearing 53, the first connecting portion 511 includes being respectively used to and deep groove ball bearing
First shaft shoulder 512 and the first axle journal 513 of inner ring positioning and connection, the second connecting portion 531 includes for wearing and supporting
The second axle journal 533 and second shaft shoulder 531 of thrust ball bearing.
The top of optical axis 4 is equipped with the second threaded hole 55 along axis, and the second screw 56 is spirally connected the second threaded hole 55, and passes through second
The nut bottom of screw connects deep groove ball bearing inner ring and is fixed on optical axis 4 tight against 511 inner ring of deep groove ball bearing, the second screw
It is equipped between at the top of 56 nut bottom and deep groove ball bearing inner ring and loosens washer 57, the second screw uses interior six in the present embodiment
The flat cheese head screw in angle.
The present embodiment optical axis 5 and axle sleeve 4, which correspond in the second axle journal upper end to the space between location hole lower end, to be provided with
The damping sleeve 52 of optical axis rotation is damped, is equipped on optical axis 5 in position corresponding with damping sleeve 52 and connects for rubbing with damping sleeve 52
The third axle journal 521 connect, damping sleeve limit optical axis 5 and axle sleeve 4 when relatively rotating by certain damping.
Optical axis 5 is equipped with the 4th axle journal 58 in second shaft shoulder, 532 bottom, and the 4th axle journal 58 is used for fixed with caster bracket 7
Connection, the rotation of optical axis 5 can drive traveling wheel 6 to turn to.
Technical solution of the present invention is not limited to the various embodiments described above, all technical solutions obtained using equivalent replacement mode
It all falls in the scope of protection of present invention.
Claims (12)
1. a kind of universal wheel position-limit mechanism, the universal wheel includes traveling wheel, caster bracket, optical axis and axle sleeve, the walking
Wheel is supported on caster bracket, and the optical axis is set to the upper end of caster bracket and is rotatably connected in axle sleeve, feature
Be: the position-limit mechanism includes push rod, electromagnet and mounting plate, and the electromagnet is fixed on a mounting board, and push rod can control
It is movably attached on electromagnet, the axle sleeve is fixed on mounting plate one end, and side wall corresponds to push rod height and position equipped with logical
Hole, the optical axis correspond to lead to the hole site and are equipped with location hole, and push rod moves left and right under the magneticaction of electromagnet, corresponds to axis
One end of set may pass through through-hole insertion positioning hole.
2. universal wheel position-limit mechanism according to claim 1, it is characterised in that: the positioning bore dia corresponds to greater than push rod
The diameter of one end of axle sleeve.
3. universal wheel position-limit mechanism according to claim 1, it is characterised in that: further include shaft end set, the push rod corresponds to
One end of axle sleeve is formed by push rod corresponding end fixed connection shaft end cap, and push rod is covered by shaft end is inserted into positioning hole across through-hole.
4. universal wheel position-limit mechanism according to claim 3, it is characterised in that: the mounting plate is a rectangular tube, the rectangle
The mounting hole matched with axle sleeve is respectively equipped on the upper surface and lower end surface of pipe one end, side end face corresponds to the vertical of mounting hole
Radial position is equipped with unthreaded hole, and the axle sleeve is equipped with the first threaded hole in the unthreaded hole position for corresponding to mounting plate, and axle sleeve passes through socket
Mounting hole makees the positioning of in-plane on a mounting board, and is worn by the first screw and to connect unthreaded hole first threaded hole that is spirally connected and be fixedly connected
In mounting plate one end.
5. universal wheel position-limit mechanism according to claim 1, it is characterised in that: the upper and lower part of the optical axis is respectively set
Deep groove ball bearing and thrust ball bearing.
6. universal wheel position-limit mechanism according to claim 5, it is characterised in that: the axle sleeve top and bottom are respectively equipped with
Bearing hole and lower bearing aperture, lower bearing aperture upper end are equipped with shaft shoulder face, and the axle sleeve is by shaft shoulder face paste together in the lower end of mounting plate
Make axially position in face.
7. universal wheel position-limit mechanism according to claim 6, it is characterised in that: be equipped with the second spiral shell along axis at the top of the optical axis
Pit, the second screw are spirally connected the second threaded hole, and by the nut bottom of the second screw tight against deep groove ball bearing inner ring, connection is deep
Ditch ball bearing inner race is fixed on optical axis.
8. universal wheel position-limit mechanism according to claim 7, it is characterised in that: the nut bottom of second screw and zanjon
It is equipped between at the top of ball bearing inner race and loosens washer.
9. universal wheel position-limit mechanism according to claim 8, it is characterised in that: the upper and lower part of the optical axis is respectively equipped with
Second connecting portion for connecting the first connecting portion of deep groove ball bearing inner ring and for connecting thrust ball bearing, described first connects
Socket part includes first shaft shoulder and the first axle journal for being respectively used to position and connect with the inner ring of deep groove ball bearing, second connection
Portion includes the second axle journal and second shaft shoulder for wearing and supporting thrust ball bearing.
10. universal wheel position-limit mechanism according to claim 9, it is characterised in that: the optical axis and axle sleeve correspond to the second axis
The damping sleeve of damping optical axis rotation is provided in neck upper end to the space between location hole lower end.
11. universal wheel position-limit mechanism according to claim 10, it is characterised in that: the optical axis, which is equipped with, is used for frictional connection
The third axle journal of damping sleeve.
12. universal wheel position-limit mechanism according to claim 9, it is characterised in that: the second shaft shoulder lower end of the optical axis is equipped with
The 4th axle journal for being connect with caster bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910886792.XA CN110450579A (en) | 2019-09-19 | 2019-09-19 | A kind of universal wheel position-limit mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910886792.XA CN110450579A (en) | 2019-09-19 | 2019-09-19 | A kind of universal wheel position-limit mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110450579A true CN110450579A (en) | 2019-11-15 |
Family
ID=68492339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910886792.XA Pending CN110450579A (en) | 2019-09-19 | 2019-09-19 | A kind of universal wheel position-limit mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110450579A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114931473A (en) * | 2022-05-17 | 2022-08-23 | 南京工程学院 | Automatic unlocking system for universal wheels of wheelchair and control method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568712A (en) * | 2012-07-25 | 2014-02-12 | 明门香港股份有限公司 | Orienting mechanism and trundle device with same |
| CN204956578U (en) * | 2015-07-23 | 2016-01-13 | 好孩子儿童用品有限公司 | Child tricycle |
| CN205818802U (en) * | 2016-07-14 | 2016-12-21 | 温州群悦箱包配件有限公司 | There is the luggage case universal wheel of lock function |
| CN106724325A (en) * | 2016-12-13 | 2017-05-31 | 马雯欣 | The sofa being moved easily |
| CN206357915U (en) * | 2017-01-09 | 2017-07-28 | 江苏申牌万向轮有限公司 | It is a kind of to adjust the universal wheel of directive force |
| CN207224978U (en) * | 2018-01-29 | 2018-04-13 | 林茂放 | A kind of new universal wheel |
| CN109572322A (en) * | 2018-10-24 | 2019-04-05 | 深圳市朗驰欣创科技股份有限公司 | A kind of universal wheel of the robot with magnetic-holding electric magnet lockable mechanism |
| CN210553937U (en) * | 2019-09-19 | 2020-05-19 | 南京康尼机电股份有限公司 | Universal wheel stop gear |
-
2019
- 2019-09-19 CN CN201910886792.XA patent/CN110450579A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568712A (en) * | 2012-07-25 | 2014-02-12 | 明门香港股份有限公司 | Orienting mechanism and trundle device with same |
| CN204956578U (en) * | 2015-07-23 | 2016-01-13 | 好孩子儿童用品有限公司 | Child tricycle |
| CN205818802U (en) * | 2016-07-14 | 2016-12-21 | 温州群悦箱包配件有限公司 | There is the luggage case universal wheel of lock function |
| CN106724325A (en) * | 2016-12-13 | 2017-05-31 | 马雯欣 | The sofa being moved easily |
| CN206357915U (en) * | 2017-01-09 | 2017-07-28 | 江苏申牌万向轮有限公司 | It is a kind of to adjust the universal wheel of directive force |
| CN207224978U (en) * | 2018-01-29 | 2018-04-13 | 林茂放 | A kind of new universal wheel |
| CN109572322A (en) * | 2018-10-24 | 2019-04-05 | 深圳市朗驰欣创科技股份有限公司 | A kind of universal wheel of the robot with magnetic-holding electric magnet lockable mechanism |
| CN210553937U (en) * | 2019-09-19 | 2020-05-19 | 南京康尼机电股份有限公司 | Universal wheel stop gear |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114931473A (en) * | 2022-05-17 | 2022-08-23 | 南京工程学院 | Automatic unlocking system for universal wheels of wheelchair and control method |
| CN114931473B (en) * | 2022-05-17 | 2023-12-19 | 南京工程学院 | Wheelchair universal wheel automatic unlocking system and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3750769A1 (en) | Driving axle of rail vehicle, rail vehicle, and rail transport system | |
| CN108698659B (en) | Balance car main frame and balance car | |
| CN110450579A (en) | A kind of universal wheel position-limit mechanism | |
| BR9806720A (en) | Chuck device with collar. | |
| CN114750172A (en) | Walking mechanism of inspection robot | |
| CN210553937U (en) | Universal wheel stop gear | |
| CN204390038U (en) | AGV intelligence charge car | |
| CN107226131A (en) | One kind turn to vice president into and its automobile | |
| CN104571105A (en) | AGV (automated guided vehicle) intelligent material distribution vehicle | |
| CN113048323B (en) | Wheel-leg type robot capable of crawling on inner wall of reducing pipeline | |
| CN106763136A (en) | One kind press-in assembly type vehicle suspension ball head | |
| CN101625016A (en) | Gapless rotary pair | |
| CN206012225U (en) | The attachment structure of vehicle bridge | |
| CN110145552A (en) | The composite balls hinge and parallel-connection structure of fine structure | |
| CN208993407U (en) | A kind of auxiliary castor | |
| CN210850238U (en) | Linkage and robot | |
| CN205315478U (en) | Universal regulation curved boom | |
| KR102174344B1 (en) | Axles for vehicle drive wheels | |
| CN207554585U (en) | A kind of safe automobile hub bearing | |
| CN214001810U (en) | Inclined swinging type vehicle steering device | |
| CN206125015U (en) | Electricelectric moves harbour tractor front axle steering mechanism | |
| CN105667488A (en) | Auxiliary installation device of automobile wheel speed sensor | |
| CN214001805U (en) | Inclined fixed type vehicle steering device | |
| CN104590399B (en) | truck cab front suspension mechanism | |
| CN216969798U (en) | Inner pull rod device for controlling wheel steering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jin Yuangui Inventor after: Li Hong Inventor after: Ke Xu Inventor after: Li Hao Inventor after: Ma Chang Inventor before: Jin Yuangui Inventor before: Li Hong Inventor before: Ke Xu Inventor before: Li Man Inventor before: Ma Chang |