CN107622923A - A kind of compact earth circuit breaker - Google Patents
A kind of compact earth circuit breaker Download PDFInfo
- Publication number
- CN107622923A CN107622923A CN201710901658.3A CN201710901658A CN107622923A CN 107622923 A CN107622923 A CN 107622923A CN 201710901658 A CN201710901658 A CN 201710901658A CN 107622923 A CN107622923 A CN 107622923A
- Authority
- CN
- China
- Prior art keywords
- protecgulum
- termination
- seesaw
- latch
- interlocked
- 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
Abstract
The invention discloses a kind of compact earth circuit breaker, its structure includes rear shell, termination, protecgulum, assembling nut, wiring label, manual panel, signal lamp, SR, hand switch, protecgulum is connected with rear shell by manner, and termination is provided with two and the upper and lower ends in the middle part of protecgulum are installed on by embedded mode altogether.Beneficial effects of the present invention：The termination that the present invention is provided with carries out cable core by the entrance hole in thread tension bracket and penetrated, then cable core is lifted and fixed upwards by seesaw, and highly efficient fixed effect can be played by anti-skidding sawtooth, and the lifting of tension disk can be easily controlled by loose ends lifting handles, the convenience of wiring is improved, is effectively prevented cable core Automatic-falling.
Description
Technical field
The present invention is a kind of compact earth circuit breaker, belongs to circuit-breaker field.
Background technology
It is well known that the circuit-breaker applied to low voltage distribution system has：Distribution with excess current protective function
With breaker, and the RCCB with excess current protective function and ground protection function.
Breaker is the electric current for referring to close, carry and cut-off under normal loop condition and can closed, when defined
Interior carrying and the switching device for cut-offfing the electric current under abnormal loop condition, breaker in the market are entering row line assembling
And during dismounting, it is required for aiding in by instruments such as screwdrivers, uses many convenience, influence operating efficiency.
Existing technology can not be completely nested cable core, and wiring difficulty is big, cause core easily occur to come off
Situation.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the present invention to provide a kind of compact earth circuit breaker, with solution
Certainly existing technology can not be completely nested cable core, and wiring difficulty is big, cause the situation that core comes off easily occur
The problem of.
To achieve these goals, the present invention is to realize by the following technical solutions：A kind of compact earth circuit
Breaker, its structure include rear shell, termination, protecgulum, assembling nut, wiring label, manual panel, signal lamp, multiple
Position button, hand switch, described protecgulum is connected with rear shell by manner, described termination altogether provided with two and
Upper and lower ends in the middle part of protecgulum are installed on by embedded mode, described protecgulum is interlocked by the assembling nut of four with rear shell
Close, described wiring label is provided with four and is distributed in protecgulum upper and lower ends two-by-two and is aligned with termination, before described
Lid middle part is provided with the groove that manual panel is installed in activity, and described signal lamp is circular configuration and is located at by embedded mode
Manual middle panel upper end, described manual middle panel lower end are provided with the groove of activity installing SR, and described is manual
Switch included by embedded mode on the left of the manual panel, inside described termination loose ends lifting handles, Hui Liqi, housing,
Locating piece, cable, booster, cable core, seesaw, thread tension bracket, described thread tension bracket are installed on lower end on the left of enclosure interior,
Lower end is provided with the shrinkage pool that activity penetrates cable on the right side of described housing, and described cable core is located at cable by embedded mode
Inside line, described locating piece passes through manner located at upper end on the right side of housing and the structure that is formed in one, described booster
In the middle part of locating piece, it is interlocked with booster on the right side of described seesaw, is interlocked on the left of described seesaw with thread tension bracket, it is described
Loose ends lifting handles lower end in the middle part of be connected with casing bolts, pass through go back to power device and locating piece upper end on the right side of described loose ends lifting handles lower end
It is connected, described booster includes the first latch, spiral spring, the second latch, and the second described latch is located at spiral
On the left of the lower spring end and structure that is formed in one, described spiral spring upper end right side is provided with the first latch and is integrated into
Type, described thread tension bracket include anti-skidding sawtooth, entrance hole, stick up hole, coil holder support body, and described hole of sticking up is located at coil holder support body upper end simultaneously
Be formed in one structure, and described coil holder support body lower end is provided with entrance hole and the structure that is formed in one, described entrance hole lower end
It is evenly distributed with more than two anti-skidding sawtooth.
Further, described spiral spring is connected by the first latch with locating piece, and described seesaw passes through
Two latches are on the left of spiral spring.
Further, through entrance hole inside coil holder support body, described coil holder support body passes through described cable core
Hole is stuck up to be interlocked with seesaw.
Further, the described power device that returns includes return spring, turn buckle, fixed knob.
Further, described return spring both ends are interlocked by fixed knob and turn buckle, and described turn buckle is total to
It is interlocked respectively provided with two and with loose ends lifting handles, locating piece.
Beneficial effect
A kind of compact earth circuit breaker of the present invention, beneficial effects of the present invention are：As Figure 1-5, it is provided with
Protecgulum is fastened with rear shell by four assembling nuts, and wiring coordinate can be provided for user by wiring label refers to
Showing, the signal lamp being provided with can observe power supply signal with convenient use person, and cable connection is carried out by termination, in order to
The fastness and convenience of wiring are improved, the thread tension bracket inside the termination includes anti-skidding sawtooth, entrance hole, sticks up hole,
Thread tension bracket is overall then to drive seesaw to tilt by booster, and the seesaw being provided with, when needing to carry out wiring, only needs with sticking up hole fastening
Loose ends lifting handles are lifted, erect it, then loose ends lifting handles bottom pushes thread tension bracket, and user passes through cable core
Entrance hole is penetrated in thread tension bracket, and after then loose ends lifting handles are unclamped, seesaw is lifted thread tension bracket by the power-assisted of booster, inlet wire
Cable core is lifted and blocked by Kong Ze by anti-skidding sawtooth, effectively ensure that the fastness of wiring, is prevented from loosening, is then passed through
Returning the return spring that power device is provided with automatically can retract loose ends lifting handles, serve automatically reset effect, the turn buckle being provided with
Loose ends lifting handles and locating piece are fixed by fixed knob, return spring can be coordinated to be rotated according to the angle of loose ends lifting handles,
Prevent return spring from deforming.
The termination that the present invention is provided with carries out cable core by the entrance hole in thread tension bracket and penetrated, and then passes through seesaw
Cable core is lifted and fixed upwards, and highly efficient fixed effect can be played by anti-skidding sawtooth, and passes through loose ends
Lifting handles can easily control the lifting of tension disk, improve the convenience of wiring, be effectively prevented cable core and take off automatically
Fall.
Brief description of the drawings
The detailed description made by reading with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is a kind of structural representation of compact earth circuit breaker of the present invention.
Fig. 2 is the termination internal structure schematic diagram of the present invention.
Fig. 3 is the booster overlooking the structure diagram of the present invention.
Fig. 4 is the thread tension bracket forward sight structural representation of the present invention.
Fig. 5 is time power device structural representation of the present invention.
In figure：Rear shell -1, termination -2, protecgulum -3, assembling nut -4, wiring label -5, manual panel -6, signal refer to
Show lamp -7, SR -8, hand switch -9, loose ends lifting handles -201, time power device -202, housing -203, locating piece -204, cable
Line -205, booster -206, cable core -207, seesaw -208, thread tension bracket -209, the first latch -2061, spiral spring -
2062nd, the second latch -2063, anti-skidding sawtooth -2091, entrance hole -2092, stick up hole -2093, coil holder support body -2094, return power bullet
Spring -2021, turn buckle -2022, fixed knob -2023.
Embodiment
To be easy to understand the technical means, the inventive features, the objects and the advantages of the present invention, with reference to
Embodiment, the present invention is expanded on further.
Fig. 1-Fig. 5 is referred to, the present invention provides a kind of compact earth circuit breaker:Its structure includes rear shell 1, wiring
Device 2, protecgulum 3, assembling nut 4, wiring label 5, manual panel 6, signal lamp 7, SR 8, hand switch 9, institute
The protecgulum 3 stated is connected with rear shell 1 by manner, and described termination 2 is provided with two and pacified by embedded mode altogether
Upper and lower ends loaded on the middle part of protecgulum 3, described protecgulum 3 are interlocked by the assembling nut 4 of four with rear shell 1, and described connects
Line label 5 is provided with four and is distributed in the upper and lower ends of protecgulum 3 two-by-two and is aligned with termination 2, and the described middle part of protecgulum 3 is set
There is the groove that manual panel 6 is installed in activity, described signal lamp 7 is circular configuration and is located at manual face by embedded mode
The middle part upper end of plate 6, the described middle part lower end of manual panel 6 are provided with the groove of activity installing SR 8, described hand switch
9 by embedded mode located at the left side of manual panel 6, the described inside of termination 2 include loose ends lifting handles 201, return power device 202,
Housing 203, locating piece 204, cable 205, booster 206, cable core 207, seesaw 208, thread tension bracket 209, described folder
Coil holder 209 is installed on the inside left lower end of housing 203, and the described right side lower end of housing 203 is provided with activity and penetrates cable 205
Shrinkage pool, for described cable core 207 by embedded mode inside cable 205, described locating piece 204 is located at housing
203 right sides upper end and the structure that is formed in one, described booster 206 is located at the middle part of locating piece 204 by manner, described
The right side of seesaw 208 be interlocked with booster 206, be interlocked on the left of described seesaw 208 with thread tension bracket 209, described loose ends
With the bolt connection of housing 203 in the middle part of the lower end of lifting handles 201, the described lower end of loose ends lifting handles 201 right side, which passes through, returns power device 202 and positioning
The upper end of block 204 is connected, and described booster 206 includes the first latch 2061, spiral spring 2062, the second latch 2063,
The second described latch 2063 is located at the lower end of spiral spring 2062 left side and the structure that is formed in one, described spiral spring
The first latch 2061 is provided with the right side of 2062 upper ends and is formed in one, described thread tension bracket 209 includes anti-skidding sawtooth 2091, inlet wire
Hole 2092, hole 2093, coil holder support body 2094 are stuck up, described hole 2093 of sticking up is located at the upper end of coil holder support body 2094 and the knot that is formed in one
Structure, the described lower end of coil holder support body 2094 are provided with entrance hole 2092 and the structure that is formed in one, the described lower end of entrance hole 2092
More than two anti-skidding sawtooth 2091 are evenly distributed with, described spiral spring 2062 passes through the first latch 2061 and locating piece
204 are connected, and described seesaw 208 is by the second latch 2063 located at the left side of spiral spring 2062, described cable core
207 are located inside coil holder support body 2094 through entrance hole 2092, and described coil holder support body 2094 is by sticking up hole 2093 and seesaw 208
It is interlocked, the described power device 202 that returns includes return spring 2021, turn buckle 2022, fixed knob 2023, described return spring
2021 both ends are interlocked by fixed knob 2023 and turn buckle 2022, described turn buckle 2022 altogether be provided with two and respectively with
Loose ends lifting handles 201, locating piece 204 are interlocked.
The present invention provides a kind of compact earth circuit breaker, and its operation principle is：As Figure 1-5, before being provided with
Lid 3 is fastened with rear shell 1 by four assembling nuts 4, and wiring coordinate can be provided for user by wiring label 5
Instruction, the signal lamp 7 being provided with can observe power supply signal with convenient use person, and carrying out cable 205 by termination 2 connects
Connect, in order to improve the fastness of wiring and convenience, the thread tension bracket 209 inside the termination 2 includes anti-skidding sawtooth
2091st, entrance hole 2092, stick up hole 2093, thread tension bracket 209 is overall then to drive seesaw 208 to tilt by booster 206, and what is be provided with sticks up
Plate 208 fastens with sticking up hole 2093, when needing to carry out wiring, it is only necessary to and loose ends lifting handles 201 are lifted, erect it, and
The bottom of loose ends lifting handles 201 pushes thread tension bracket 209 afterwards, and cable core 207 is penetrated thread tension bracket 209 by user by entrance hole 2092
Interior, after then loose ends lifting handles 201 are unclamped, seesaw 208 is lifted thread tension bracket 209 by the power-assisted of booster 206, entrance hole
Cable core 207 is lifted and blocked by 2092 by anti-skidding sawtooth 2091, effectively be ensure that the fastness of wiring, is prevented pine
Dynamic, the return spring 2021 being then provided with by returning power device 202 automatically can retract loose ends lifting handles 201, serve automatic multiple
The effect of position, the turn buckle 2022 being provided with fixes loose ends lifting handles 201 and locating piece 204 by fixed knob 2023, according to loose ends
The angle of lifting handles 201 can coordinate return spring 2021 to be rotated, and prevent return spring 2021 from deforming.
Return spring 2021 of the present invention be it is a kind of utilize elasticity come work machine components.It is made of elastomeric material
Part deform upon under external force, remove external force after again restore to the original state.Also " spring " is made.
The present invention solves the problems, such as it is that existing technology can not be completely nested cable core, and wiring difficulty is big, leads
Cause the situation that core comes off easily occur, being combined with each other by above-mentioned part of the invention, the termination being provided with passes through clamp
Entrance hole in frame carries out cable core and penetrated, and then cable core is lifted and fixed upwards by seesaw, and by anti-skidding
Sawtooth can play highly efficient fixed effect, and the lifting of tension disk can be easily controlled by loose ends lifting handles, lifting
The convenience of wiring, is effectively prevented cable core Automatic-falling, described in detail below：
Described thread tension bracket 209 is installed on the inside left lower end of housing 203, and the described right side lower end of housing 203, which is provided with, lives
The dynamic shrinkage pool for penetrating cable 205, by embedded mode inside cable 205, described determines described cable core 207
Position block 204 is located at the right side upper end of housing 203 and the structure that is formed in one, and described booster 206 is by manner located at fixed
The middle part of position block 204, the described right side of seesaw 208 are interlocked with booster 206, the described left side of seesaw 208 and the phase of thread tension bracket 209
Fasten, pass through in the middle part of the described lower end of loose ends lifting handles 201 with the bolt connection of housing 203, the described lower end of loose ends lifting handles 201 right side
Return power device 202 with the upper end of locating piece 204 to be connected, the second described latch 2063 is located on the left of the lower end of spiral spring 2062 simultaneously
Be formed in one structure, and the first latch 2061 is provided with the right side of the described upper end of spiral spring 2062 and is formed in one, described
Hole 2093 of sticking up be located at the upper end of coil holder support body 2094 and the structure that is formed in one, the described lower end of coil holder support body 2094 is provided with inlet wire
Hole 2092 and the structure that is formed in one, the described lower end of entrance hole 2092 are evenly distributed with more than two anti-skidding sawtooth 2091.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above, for this area skill
For art personnel, it is clear that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing substantially from the present invention spirit or
In the case of essential characteristic, the present invention can be realized in other specific forms.Which point therefore, no matter from the point of view of, all should incite somebody to action
Embodiment regards exemplary as, and be it is nonrestrictive, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that all changes fallen in the implication and scope of the equivalency of claim are included in the present invention
It is interior.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (5)
1. a kind of compact earth circuit breaker, its structure includes rear shell (1), termination (2), protecgulum (3), assembling nut
(4), wiring label (5), manual panel (6), signal lamp (7), SR (8), hand switch (9), it is characterised in that：
Described protecgulum (3) is connected with rear shell (1) by manner, and described termination (2) is provided with two and led to altogether
The upper and lower ends that embedded mode is installed in the middle part of protecgulum (3) are crossed, described protecgulum (3) is by the assembling nut (4) of four with after
Shell (1) is interlocked, and described wiring label (5) is provided with four and is distributed in protecgulum (3) upper and lower ends and and termination two-by-two
(2) align, the groove that manual panel (6) is installed in activity, described signal lamp (7) are provided with the middle part of described protecgulum (3)
It is provided with lower end for circular configuration and by embedded mode in the middle part of upper end in the middle part of manual panel (6), described manual panel (6)
The groove of activity installing SR (8), described hand switch (9) is by embedded mode on the left of manual panel (6)；
Include inside described termination (2) loose ends lifting handles (201), return power device (202), housing (203), locating piece (204),
Cable (205), booster (206), cable core (207), seesaw (208), thread tension bracket (209), described thread tension bracket (209)
Housing (203) inside left lower end is installed on, lower end penetrates cable (205) provided with activity on the right side of described housing (203)
Shrinkage pool, described cable core (207) is internal located at cable (205) by embedded mode, and described locating piece (204) is located at
The upper end and structure that is formed in one, described booster (206) are located at locating piece by manner on the right side of housing (203)
(204) middle part, described seesaw (208) right side are interlocked with booster (206), described seesaw (208) left side and thread tension bracket
(209) it is interlocked, described loose ends lifting handles (201) lower end middle part and housing (203) bolt connection, described loose ends lifting handles
(201) it is connected on the right side of lower end by returning power device (202) with locating piece (204) upper end；
Described booster (206) includes the first latch (2061), spiral spring (2062), the second latch (2063), described
The second latch (2063) on the left of spiral spring (2062) lower end and the structure that is formed in one, described spiral spring
(2062) the first latch (2061) is provided with the right side of upper end and is formed in one；
Described thread tension bracket (209) includes anti-skidding sawtooth (2091), entrance hole (2092), sticks up hole (2093), coil holder support body
(2094), described hole (2093) of sticking up is located at coil holder support body (2094) upper end and the structure that is formed in one, described coil holder support body
(2094) lower end is provided with entrance hole (2092) and the structure that is formed in one, and described entrance hole (2092) lower end is evenly distributed with two
Anti-skidding sawtooth (2091) more than individual.
A kind of 2. compact earth circuit breaker according to claim 1, it is characterised in that：Described spiral spring
(2062) it is connected by the first latch (2061) with locating piece (204), described seesaw (208) passes through the second latch (2063)
On the left of spiral spring (2062).
A kind of 3. compact earth circuit breaker according to claim 1, it is characterised in that：Described cable core
(207) internal located at coil holder support body (2094) through entrance hole (2092), described coil holder support body (2094) is by sticking up hole
(2093) it is interlocked with seesaw (208).
A kind of 4. compact earth circuit breaker according to claim 1, it is characterised in that：Described returns power device
(202) return spring (2021), turn buckle (2022), fixed knob (2023) are included.
A kind of 5. compact earth circuit breaker according to claim 4, it is characterised in that：Described return spring
(2021) both ends are interlocked by fixed knob (2023) and turn buckle (2022), and described turn buckle (2022) is provided with two altogether
And it is interlocked respectively with loose ends lifting handles (201), locating piece (204).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710901658.3A CN107622923B (en) | 2017-09-28 | 2017-09-28 | A kind of compact earth circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710901658.3A CN107622923B (en) | 2017-09-28 | 2017-09-28 | A kind of compact earth circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107622923A true CN107622923A (en) | 2018-01-23 |
| CN107622923B CN107622923B (en) | 2019-02-26 |
Family
ID=61091193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710901658.3A Active CN107622923B (en) | 2017-09-28 | 2017-09-28 | A kind of compact earth circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107622923B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164629A (en) * | 2020-09-25 | 2021-01-01 | 朱承风 | Grounding circuit breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050090159A1 (en) * | 2003-10-28 | 2005-04-28 | Luther Robert R. | Electrical wiring device |
| US20100081316A1 (en) * | 2006-10-06 | 2010-04-01 | Abb Ag | Installation switching device |
| CN102195145A (en) * | 2010-02-01 | 2011-09-21 | 施耐德电器工业公司 | Flexible connection terminal with an operation lever |
| CN102623260A (en) * | 2012-02-27 | 2012-08-01 | 温州创伟永吉电气有限公司 | Rapid wiring type breaker |
-
2017
- 2017-09-28 CN CN201710901658.3A patent/CN107622923B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050090159A1 (en) * | 2003-10-28 | 2005-04-28 | Luther Robert R. | Electrical wiring device |
| US20100081316A1 (en) * | 2006-10-06 | 2010-04-01 | Abb Ag | Installation switching device |
| CN102195145A (en) * | 2010-02-01 | 2011-09-21 | 施耐德电器工业公司 | Flexible connection terminal with an operation lever |
| CN102623260A (en) * | 2012-02-27 | 2012-08-01 | 温州创伟永吉电气有限公司 | Rapid wiring type breaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164629A (en) * | 2020-09-25 | 2021-01-01 | 朱承风 | Grounding circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107622923B (en) | 2019-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101409185B (en) | Circuit interrupting device | |
| CN104867785B (en) | Permanent magnetism type contactor with disjunction protection device | |
| CN107622923A (en) | A kind of compact earth circuit breaker | |
| CN101564574A (en) | High-voltage pulse generating circuit suitable for extracorporeal defibrillator | |
| CN107343497A (en) | A kind of induction bird driver | |
| CN102082046A (en) | Multifunctional circuit breaker accessory | |
| CN101771245B (en) | Switch handle device for low-voltage drawer cabinet | |
| CN209692006U (en) | A kind of terminal assemblies and floor socket outlet | |
| CN110047711B (en) | Intelligent miniature circuit breaker capable of being combined and matched for use | |
| CN107610984B (en) | A kind of breaker with alarm device | |
| CN201780945U (en) | Electronic type intelligent miniature circuit breaker | |
| CN201224067Y (en) | Electric ear tag plier | |
| CN101936089B (en) | Telescopic safety fence | |
| CN102508088A (en) | Checking instrument of backup automatic switching device | |
| CN206965083U (en) | A kind of safe and intelligent recovery and quick assembling four-wheel electric slide plate | |
| CN210516609U (en) | Strut type vacuum circuit breaker | |
| CN209329484U (en) | A kind of distributed board outdoor that warning is good | |
| CN202502966U (en) | Circuit breaker | |
| CN208319193U (en) | The storage device of patient monitor line | |
| CN2567113Y (en) | Touch sensing electric controlled tail container of motorcycle | |
| CN205535141U (en) | But portable rewiring LED lamps and lanterns | |
| CN218215050U (en) | Anti-misoperation locking device for medium-high voltage switch cabinet | |
| CN2529375Y (en) | Double-pole leakage circuit breaker | |
| CN113066702B (en) | Compact grounding circuit breaker and application method thereof | |
| CN219406288U (en) | Vehicle-mounted reading lamp |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190115 Address after: 310000 Second Floor, Building 5, No. 12, Binwen Road, Xixing Street, Binjiang District, Hangzhou City, Zhejiang Province Applicant after: Hangzhou Shenzhijiang Electrical Appliances Co., Ltd. Address before: 610021 Jinjiang Campus, Chengdu Vocational and Technical College, No. 58 West Street of Academy, Jinjiang District, Chengdu City, Sichuan Province Applicant before: Le Jianxie |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |