CN105097366A - Mechanically-and-forcedly-connected contactor device - Google Patents
Mechanically-and-forcedly-connected contactor device Download PDFInfo
- Publication number
- CN105097366A CN105097366A CN201510511507.8A CN201510511507A CN105097366A CN 105097366 A CN105097366 A CN 105097366A CN 201510511507 A CN201510511507 A CN 201510511507A CN 105097366 A CN105097366 A CN 105097366A
- Authority
- CN
- China
- Prior art keywords
- contact
- mechanical arm
- contactor
- fixed
- mechanical
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/56—Contact spring sets
- H01H50/58—Driving arrangements structurally associated therewith; Mounting of driving arrangements on armature
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Elimination Of Static Electricity (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention provides a mechanically-and-forcedly-connected contactor device which comprises a contactor unit. The contactor unit internally comprises an elastic element, a moving contact and a static contact. The elastic element separates the moving contact and the static contact under the condition of no external force. The contactor device also comprises a mechanical arm and a pull rope. The mechanical arm moves under the pulling action of the pull rope, and pushes the moving contact to move; and the distance of the mechanical arm moved under the pulling action of the pull rope can enable the moving contact to be contacted with the static contact. The mechanical force is directly applied to the moving contact of the contactor to enable the moving contact of the contactor to move to the static contact and reliably press to the static contact of the contactor, so that reliable connection of the contact of each phase of the contactor is guaranteed, and normal work of rated load can be ensured.
Description
Technical field
The present invention relates to a kind of contactor, particularly relate to a kind of contactor arrangement can connected by mechanical forced means.
Background technology
Contactor is low-voltage electrical apparatus the most frequently used in electric control system; fast shut-off can exchange with direct current major loop and the device controlling (some type can reach 800 amperes) circuit with big current can be connected continually; so often apply to control work factory to establish standby electrical load such as ﹑ electricity hot device ﹑ machine-tool and various kinds electric power unit etc.; contactor can not only be connected and cut off circuit, but also has the effect of low-voltage release guard.The distinguishing feature of contactor is can the very large power consumption equipment electric current of segmentation with less control electric current, and control capability is large simultaneously, and being applicable to frequent operation and far distance controlled, is the critical elements in automatic control system.
As depicted in figs. 1 and 2, contactor 1 comprises coil 13, elastomeric element (as spring 16), moving contact 11 and fixed contact 12 (also referred to as main contacts and auxiliary contact).Switch 17 closes, and presses start button 19, forms loop, and after coil 13 is energized, according to electromagnetic induction principle, iron core 14 produces magnetic force, and magnet 15 is attracted adhesive, and moving contact 11 contacts with fixed contact 12, for motor 2 is powered.After pressing stop button 18, electric current disconnects, and under elastomeric element effect, moving contact 11 and fixed contact 12 disconnect, and no longer power.
But once contactor control loop lost efficacy, then the mode of original electrical control cannot be adopted to make contactor adhesive, at some in emergency circumstances, as fire-fighting fire extinguishing, contactor must be connected, be the work of contactor connected device.Therefore, when control loop lost efficacy, how guaranteeing that contactor and contactor connected device can promptly come into operation, is a problem needing to solve.
Summary of the invention
For the problem that current contactor cannot normally come into operation under control loop failure conditions, the invention provides the contactor arrangement of a kind of mechanical forced connection and a kind of contactor method of accessing.
The present invention first aspect is to provide the contactor arrangement that a kind of mechanical forced connects, comprise contact unit, comprise elastomeric element, moving contact and fixed contact in contact unit, wherein in the absence of external forces, elastomeric element makes moving contact be separated with fixed contact.
The contactor arrangement that mechanical forced of the present invention connects also comprises mechanical arm, drag-line, and mechanical arm moves under drag-line pulling function, and promotes moving contact motion, and the distance that mechanical arm moves under drag-line pulling function can make moving contact contact with fixed contact.
In one preferred embodiment of the invention, also comprise resilient mounting, under drag-line pulling function Disappearance Scenarios, mechanical arm is resetted.
In one preferred embodiment of the invention, the contactor arrangement that described mechanical forced connects comprises fixed mount, and fixed mount is provided with mechanical arm sliding channel, and described mechanical arm moves under drag-line pulling function in sliding channel.
In more preferred embodiment of the present invention, described resilient mounting is arranged on described fixed mount.
In more preferred embodiment of the present invention, described fixed mount is provided with movable pulley and fixed pulley, is connected on movable pulley after fixed pulley described in guy cable rounds, pulls described movable pulley and is moved by movable pulley driving mechanical arm.
Wherein, more preferably, described movable pulley cylinder lever connecting rod, described pull bar is through holder, and resilient mounting is connected between pull bar end and holder.
Wherein, more preferably, described resilient mounting is spring, and described pull bar is through after holder, and described resilient mounting is nested with at pull bar end.
Wherein, more preferably, described movable pulley is located in a framework, and mechanical arm is connected on framework.
In one preferred embodiment of the invention, described drag-line free end is connected with handle.
In a kind of more preferred embodiment of the present invention, described handle comprises cylindrical shell, handle pulling rod, and handle pulling rod comprises and is inserted into the slide bar in described cylindrical shell and the grip part outside cylindrical shell.
Wherein, more preferably, described barrel wall is provided with chute, and chute is provided with stopper slot in the one end near grip part, and the slide bar of handle pulling rod is provided with stopper, and stopper stretches out in chute.
In more preferred embodiment of the present invention, described contact unit comprises housing, and described elastomeric element, moving contact and fixed contact are positioned at described housing, and case top is provided with opening, and mechanical arm is extend in housing by described opening.
In more preferred embodiment of the present invention, the contactor arrangement that described mechanical forced connects comprises fixed head, is all connected on base plate bottom contactor housing bottom, fixed mount.
In a kind of more preferred embodiment, the contactor arrangement that described mechanical forced connects comprises multiple contact unit, each contact unit is centered around around fixed mount and arranges, fixed mount is provided with multiple mechanical arm, and each mechanical arm is inserted into alone in a contact unit for promoting the motion of moving contact.
The present invention second aspect is to provide a kind of method that mechanical forced connects contactor, comprising: make mechanical arm promote moving contact by external force and move to fixed contact, and contact fixed contact.
In a kind of preferred embodiment of the present invention, the method that described mechanical forced connects contactor comprises: outer La Lasuo, and drag-line driving mechanical arm moves, and mechanical arm promotes moving contact and moves to fixed contact, and contacts fixed contact;
After moving contact contacts with fixed contact, drag-line stretch range is fixed.
The present invention passes through the moving contact of mechanical force direct effect and contactor; The moving contact of contactor is moved to fixed contact, and is pressed on reliably on the fixed contact of contactor, guarantee that the contact of each phase of contactor all can be connected reliably, and nominal load should be able to be with normally to work.
Accompanying drawing explanation
Fig. 1 is existing contactor construction schematic diagram;
Fig. 2 is existing contactor operation principle schematic diagram;
Fig. 3 is the structural representation in the single contact unit situation of the present invention;
Fig. 4 is the another kind of structural representation in the present invention's single contact unit situation;
Fig. 5 is fixed rack structure schematic diagram in an embodiment of the present invention;
Fig. 6 is grip structure schematic diagram of the present invention;
Fig. 7 is the structural representation in the multiple contact unit situation of the present invention;
Fig. 8 is Fig. 7 partial enlargement structural representation of the present invention;
Fig. 9 is a kind of fixed rack structure schematic diagram in the present invention's multiple contact unit situation;
Figure 10 is another kind of fixed rack structure schematic diagram in the present invention's multiple contact unit situation;
Figure 11 is the contactor arrangement schematic appearance that mechanical forced of the present invention connects.
Embodiment
Embodiment 1
With reference to Fig. 3, in an embodiment of the present invention, the contactor arrangement that described mechanical forced connects comprises fixed head 6, fixed head 6 is provided with contact unit 1, as depicted in figs. 1 and 2, moving contact 11, fixed contact 12 is provided with, under normal circumstances, after energising in contact unit 1, under magnetic attraction effect, moving contact 11 moves to fixed contact 12, and contacts with fixed contact 12, and forming closed circuit is that motor 2 is powered.After power-off, under spring 16 acts on, moving contact 11 is away from fixed contact 12, and circuit disconnects.
The contactor arrangement that in the present embodiment, mechanical forced connects also comprises fixed mount 5.Fig. 4 gives a kind of fixed mount 5 structural representation, comprise fixed pulley 54, movable pulley 53, movable pulley 53 is arranged in framework 530, framework 530 top cylinder lever connecting rod 56, pull bar 56 other end passes fixed mount top (fixed mount top is as holder), and above holder, spring 55 is nested with the outside at pull bar 56, nut 57 is arranged at pull bar 56 top, and spring 55 is limited in the space between holder and nut.
The contactor arrangement that in the present embodiment, mechanical forced connects also comprises handle 3 and drag-line 4, and be connected to after fixed pulley 54 is walked around in drag-line 4 one end on movable pulley 53, the other end is connected on handle 3.With reference to Fig. 6, handle 3 comprises cylindrical shell 32, grip part 31, and grip part 31 connects slide bar, and when pulling grip part 31, slide bar can slide in cylindrical shell 32.Cylindrical shell 32 wall is provided with chute 33, and chute end is provided with stopper slot 34, and slide bar is provided with stopper 35, and stopper 35 stretches out in chute 33.Drag-line 4 is connected on slide bar at the end of cylindrical shell 32.
Fixed mount 5 is provided with the moving conduit of mechanical arm 51, and mechanical arm 51 is connected to framework 530 bottom, and mechanical arm 51 end is pushing block 58.Under control loop failure conditions, draw grip part 31 firmly, drag-line 4 pulls movable pulley 53 descending, thus pusher mechanical arm 51 is descending, and pushing block 58 can initially contact moving contact 11, also can contact moving contact 11 in motion process.Pushing block 58 promotes moving contact 11 and moves to fixed contact 12, until contact with fixed contact 12, thus forms closed circuit.Rotate grip part 31, make stopper 35 be stuck in stopper slot 33 internal fixtion.
When quitting work, reverse rotation grip part 31, removes external force, and under spring 55 acts on, movable pulley resets, and simultaneously in contact unit under the effect of spring 16 elastic force, moving contact 11 is resetted, disconnects with fixed contact 12, cut off circuit.
Fig. 4 gives the set-up mode of another kind of mechanical arm and fixed mount 5, fixed mount 5 is arranged on the side of contact unit 1, after mechanical arm 51 crosses out from fixed mount 5, lower bending shape l-shaped, end connects pushing block 58 (structure of fixed mount and mechanical arm can refer to embodiment 2 and Fig. 9).
Embodiment 2
The present invention can adopt multiple contact unit simultaneously.Fig. 7-Fig. 8 gives the example of two contact units.
Fixed head 6 is arranged fixed mount 5, the first contact unit 10 and the second contact unit 20 are arranged in the bilateral symmetry of fixed mount 5.
With reference to Fig. 9, be the tracks of movable pulley 53 in the middle of fixed mount 5, movable pulley 53 is arranged on inside framework 530, and below is fixed pulley 54.Fixed mount two side is provided with mechanical arm chute, and the first mechanical arm 51, second mechanical arm 52 is all fixed on a connecting plate 50, and connecting plate 50 leans against on fixed mount wall, and back side connecting rod is connected to framework 530.Mechanical arm tail end lower bending shape l-shaped, connects a pushing block 58.Pushing block 58 is inserted in contact unit, for promoting moving contact.
Frame roof is provided with pull bar 56, pull bar 56 other end passes fixed mount top (fixed mount top is as holder), and above holder, spring 55 is nested with the outside at pull bar 56, nut 57 is arranged at pull bar 56 top, and spring 55 is limited in the space between holder and nut.
With reference to the method for operation of embodiment 1, pull handle outward 3 time, movable pulley 53 moves downward under the pulling of drag-line 4, and pull bar 56 is thereupon drop-down, Compress Spring 55.Meanwhile, connecting plate 50 drives downward fixed mount 5 side walls track to move downward by connecting rod at movable pulley 53 and framework 530, thus driving mechanical arm is descending.When removing external force, under spring 55 acts on, pull bar 56 pushes away, and movable pulley 53 goes up horizontal reset thereupon, and mechanical arm resets under connecting plate 50, framework 530 drive simultaneously.
Figure 10 gives the method that another kind arranges spring 55, and pull bar 56 is positioned at bottom framework 530, after holder 59, is nested with spring 55, and both ends of the spring is separately fixed on holder 59 and nut 57.Movable pulley 53 moves downward, push rod 56 extension spring 55.When removing external force, under the effect of spring 55 retraction, pull bar 56 pushes away, movable pulley resets.
But should be understood that, also can be that more contact unit is arranged around fixed mount 5, the corresponding mechanical arm of each contact unit, each mechanical arm all can be connected on fixed mount with reference to the mode of Fig. 9-Figure 10 and above-described embodiment.
Figure 11 gives the schematic appearance when fixed mount outside is nested with housing.
Be described in detail specific embodiments of the invention above, but it is just as example, the present invention is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that the present invention is carried out and substituting also all among category of the present invention.Therefore, equalization conversion done without departing from the spirit and scope of the invention and amendment, all should contain within the scope of the invention.
Claims (10)
1. a contactor arrangement for mechanical forced connection, it is characterized in that, comprise contact unit, comprise elastomeric element, moving contact and fixed contact in contact unit, wherein in the absence of external forces, elastomeric element makes moving contact be separated with fixed contact;
The contactor arrangement that described mechanical forced connects also comprises mechanical arm, drag-line, and mechanical arm moves under drag-line pulling function, and promotes moving contact motion, and the distance that mechanical arm moves under drag-line pulling function can make moving contact contact with fixed contact.
2. the contactor arrangement of mechanical forced connection according to claim 1, is characterized in that, also comprise resilient mounting, under drag-line pulling function Disappearance Scenarios, mechanical arm is resetted.
3. the contactor arrangement of mechanical forced connection according to claim 1, it is characterized in that, also comprise fixed mount, fixed mount is provided with mechanical arm sliding channel, and described mechanical arm moves under drag-line pulling function in sliding channel.
4. the contactor arrangement of mechanical forced connection according to claim 3, it is characterized in that, the contactor arrangement that described mechanical forced connects comprises multiple contact unit, each contact unit is centered around around fixed mount and arranges, fixed mount is provided with multiple mechanical arm, and each mechanical arm is inserted into alone in a contact unit for promoting the motion of moving contact.
5. the contactor arrangement of mechanical forced connection according to claim 3, it is characterized in that, described fixed mount is provided with movable pulley and fixed pulley, is connected on movable pulley after fixed pulley described in guy cable rounds, pulls described movable pulley and is moved by movable pulley driving mechanical arm.
6. the contactor arrangement of mechanical forced connection according to claim 5, it is characterized in that, described movable pulley cylinder lever connecting rod, described pull bar is through holder, and resilient mounting is connected between pull bar end and holder.
7. the contactor arrangement of mechanical forced connection according to claim 1, it is characterized in that, described drag-line free end is connected with handle; Described handle comprises cylindrical shell, handle pulling rod, and handle pulling rod comprises and is inserted into the slide bar in described cylindrical shell and the grip part outside cylindrical shell.
8. the contactor arrangement of mechanical forced connection according to claim 7, it is characterized in that, described barrel wall is provided with chute, and chute is provided with stopper slot in the one end near grip part, and the slide bar of handle pulling rod is provided with stopper, and stopper stretches out in chute.
9. the contactor load using mechanical forced described in claim 1 to connect connects a method for contactor, it is characterized in that, comprising:
Make mechanical arm promote moving contact by external force to move to fixed contact, and contact fixed contact.
10. method according to claim 9, is characterized in that, comprising:
Outer La Lasuo, drag-line driving mechanical arm moves, and mechanical arm promotes moving contact and moves to fixed contact, and contacts fixed contact;
After moving contact contacts with fixed contact, drag-line stretch range is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511507.8A CN105097366B (en) | 2015-08-19 | 2015-08-19 | Mechanical forced connects contactor arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511507.8A CN105097366B (en) | 2015-08-19 | 2015-08-19 | Mechanical forced connects contactor arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105097366A true CN105097366A (en) | 2015-11-25 |
| CN105097366B CN105097366B (en) | 2018-07-20 |
Family
ID=54577562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510511507.8A Active CN105097366B (en) | 2015-08-19 | 2015-08-19 | Mechanical forced connects contactor arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105097366B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281310A (en) * | 2017-01-05 | 2018-07-13 | 施耐德电器工业公司 | Forced blocking module and contactor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2185469Y (en) * | 1994-01-16 | 1994-12-14 | 王沛霖 | Light touch type general magnetic attraction electric switch |
| US6445090B1 (en) * | 1998-12-09 | 2002-09-03 | Alps Electric Co., Ltd. | Electrical equipment having energy saving mode capable of shutting off supplying of voltage to primary power supply supplying circuit under no use thereof |
| CN200947408Y (en) * | 2006-09-18 | 2007-09-12 | 许瑞峰 | Improved structure of hand-forced switch |
| CN201252356Y (en) * | 2008-07-29 | 2009-06-03 | 淄博供电公司 | On-site disassembly overhaul special tool for high-voltage isolating switch |
| CN202411906U (en) * | 2011-12-23 | 2012-09-05 | 浙江金刚汽车有限公司 | Fast clamping mechanism |
| CN203541560U (en) * | 2013-08-15 | 2014-04-16 | 襄阳市领航者精密机械加工有限公司 | Concealable tailstock plug pin mechanism for tailstock dragging |
| CN203644671U (en) * | 2013-11-26 | 2014-06-11 | 昆山瑞普电气有限公司 | Single-phase permanent-magnetism contactor |
| CN203649230U (en) * | 2013-10-21 | 2014-06-18 | 邢占忠 | Pneumatic bolt clippers with in-built pulley block |
| CN203760352U (en) * | 2014-03-19 | 2014-08-06 | 佛山市先达威机械有限公司 | Sudden stop switch for gang drill stay rope |
| CN204966405U (en) * | 2015-08-19 | 2016-01-13 | 上海金盾消防智能科技有限公司 | Switch -on contactor device is forced to machinery |
-
2015
- 2015-08-19 CN CN201510511507.8A patent/CN105097366B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2185469Y (en) * | 1994-01-16 | 1994-12-14 | 王沛霖 | Light touch type general magnetic attraction electric switch |
| US6445090B1 (en) * | 1998-12-09 | 2002-09-03 | Alps Electric Co., Ltd. | Electrical equipment having energy saving mode capable of shutting off supplying of voltage to primary power supply supplying circuit under no use thereof |
| CN200947408Y (en) * | 2006-09-18 | 2007-09-12 | 许瑞峰 | Improved structure of hand-forced switch |
| CN201252356Y (en) * | 2008-07-29 | 2009-06-03 | 淄博供电公司 | On-site disassembly overhaul special tool for high-voltage isolating switch |
| CN202411906U (en) * | 2011-12-23 | 2012-09-05 | 浙江金刚汽车有限公司 | Fast clamping mechanism |
| CN203541560U (en) * | 2013-08-15 | 2014-04-16 | 襄阳市领航者精密机械加工有限公司 | Concealable tailstock plug pin mechanism for tailstock dragging |
| CN203649230U (en) * | 2013-10-21 | 2014-06-18 | 邢占忠 | Pneumatic bolt clippers with in-built pulley block |
| CN203644671U (en) * | 2013-11-26 | 2014-06-11 | 昆山瑞普电气有限公司 | Single-phase permanent-magnetism contactor |
| CN203760352U (en) * | 2014-03-19 | 2014-08-06 | 佛山市先达威机械有限公司 | Sudden stop switch for gang drill stay rope |
| CN204966405U (en) * | 2015-08-19 | 2016-01-13 | 上海金盾消防智能科技有限公司 | Switch -on contactor device is forced to machinery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281310A (en) * | 2017-01-05 | 2018-07-13 | 施耐德电器工业公司 | Forced blocking module and contactor |
| CN108281310B (en) * | 2017-01-05 | 2019-12-03 | 施耐德电器工业公司 | Forced blocking module and contactor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105097366B (en) | 2018-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203481122U (en) | Rapid vacuum switch and power grid system | |
| CN105047472B (en) | A kind of monopole vacuum contactor | |
| CN109616375B (en) | Rapid arc extinguisher, medium-low voltage metal switch cabinet and application method of rapid arc extinguisher | |
| CN201051453Y (en) | Reverse circuit control switch device | |
| CN203882905U (en) | Electromagnetic relay | |
| CN204966405U (en) | Switch -on contactor device is forced to machinery | |
| CN105097366A (en) | Mechanically-and-forcedly-connected contactor device | |
| CN205984815U (en) | Closed electromagnetic relay | |
| CN204270988U (en) | Mechanical latching A.C. contactor | |
| CN204144166U (en) | A kind of D.C. contactor | |
| CN101887826B (en) | Auxiliary tripping unit for a circuit breaker | |
| CN105551893A (en) | Electromagnetic mechanism of direct current contactor | |
| CN201072734Y (en) | Instantaneous electricity-consumption AC contactor | |
| CN102768919B (en) | Soft-start circuit | |
| CN103996568A (en) | Contactor | |
| CN204966389U (en) | Fixed vacuum circuit breaker interlock | |
| CN204045532U (en) | Prevent voltage transformer secondary side anti-charge device | |
| CN208938879U (en) | A kind of the two poles of the earth 10kV permanent magnetic vacuum breaker | |
| KR101175076B1 (en) | Power transfer switch | |
| CN102592900B (en) | Switching device having controllable switch disconnection performance | |
| CN102412099B (en) | Locking mechanism for electromagnetic switch | |
| CN112020251A (en) | Circuit protection device easy to assemble | |
| CN104952671A (en) | Direct pulling type residual current operated tripping mechanism | |
| CN200979863Y (en) | A leakage protection switch | |
| CN203166509U (en) | Contactor capable of avoiding open-phase operation of power system for transformer station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 201304 Shanghai city Pudong New Area Wansong College Town Road No. 88 Building 8 Applicant after: SHANGHAI JINDUN FIRE-FIGHTING INTELLIGENT TECHNOLOGY CO., LTD. Address before: 201304 Shanghai city Pudong New Area harbor college town right Li No. 1515 Applicant before: SHANGHAI JINDUN FIRE-FIGHTING INTELLIGENT TECHNOLOGY CO., LTD. |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161219 Address after: Futian District Hong Mei Road Shenzhen city Guangdong province 518034 No. 2003 Jialong Xingyuan building B Applicant after: Lin Xinhuan Address before: 201304 Shanghai city Pudong New Area Wansong College Town Road No. 88 Building 8 Applicant before: SHANGHAI JINDUN FIRE-FIGHTING INTELLIGENT TECHNOLOGY CO., LTD. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201125 Address after: 215400 Building 5, Industrial Development Zone, Shaxi Town, Taicang City, Suzhou City, Jiangsu Province Patentee after: GRACE FLUID TECHNOLOGY Co.,Ltd. Address before: Futian District Hong Mei Road Shenzhen city Guangdong province 518034 No. 2003 Jialong Xingyuan building B Patentee before: Lin Xinhuan |