CN106376194A - Alarm mainframe capable of being quickly installed and dismantled - Google Patents
Alarm mainframe capable of being quickly installed and dismantled Download PDFInfo
- Publication number
- CN106376194A CN106376194A CN201610865340.XA CN201610865340A CN106376194A CN 106376194 A CN106376194 A CN 106376194A CN 201610865340 A CN201610865340 A CN 201610865340A CN 106376194 A CN106376194 A CN 106376194A
- Authority
- CN
- China
- Prior art keywords
- groove
- side wall
- housing
- forms
- circuit board
- 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
- 238000009434 installation Methods 0.000 claims abstract description 33
- 238000009423 ventilation Methods 0.000 claims description 28
- 210000005056 cell body Anatomy 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0213—Venting apertures; Constructional details thereof
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/02—Arrangements of circuit components or wiring on supporting structure
- H05K7/12—Resilient or clamping means for holding component to structure
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20127—Natural convection
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses an alarm mainframe capable of being quickly installed and dismantled. The alarm mainframe comprises a shell and a bottom cover, wherein the middle part of the bottom cover is provided with a boss which extends upwards; two support plates are formed at two sides of the boss; a placement groove is formed in the side wall of each support plate; an inserting groove is formed in the side wall of each placement groove; an installation pressure spring is fixed on the side wall of each inserting groove; two ends of a circuit board are pressed on the placement grooves and the end parts of the circuit board are inserted into the inserting grooves and are propped against the installation pressure springs; two hold-down plates are formed on the bottom surface of a top plate of the shell; a first ball plunger is screwed on the side wall of the lower end of each hold-down plate; a first concave hole is formed in the side wall of the placement groove at the upper part of each inserting groove; the lower end of each hold-down plate is inserted into the corresponding placement groove and a ball head of each first ball plunger is embedded into the corresponding first concave hole; a plurality of L-shaped upper cooling slots are formed in each hold-down plate; and a plurality of L-shaped lower cooling slots are formed in each support plate. Various components disclosed by the invention are convenient to install and dismantle and the heat dissipation effect is good.
Description
Technical field:
The present invention relates to the technical field of security device, be specifically related to a kind of can Fast Installation dismounting security protection main frame.
Background technology:
At present, the complex structure of existing security protection or fire-fighting main frame, part is loaded down with trivial details so that its installation and removal is all very multiple
Miscellaneous, so that its internal part exchanging bothers, work efficiency is low.In addition, the dissipating of existing security protection or fire-fighting main frame
Thermal effect is limited so that its internal part life shortens.
Content of the invention:
The purpose of the present invention aims to solve the problem that the problem that prior art exists, and provides a kind of all parts easy installation and removal,
And good heat dissipation effect can Fast Installation dismounting security protection main frame.
The present invention relates to a kind of can Fast Installation dismounting security protection main frame, include housing be arranged on described housing bottom
Bottom, the middle part of described bottom has upwardly extending lobe, and the both sides of described lobe form two gripper shoes, described
Multiple bottom ventilation grooves are formed on the lobe between two gripper shoes, described bottom ventilation groove runs through the bottom surface of bottom,
Resettlement groove is formed on the side wall of fagging, the side wall of described resettlement groove forms inserting groove, solid on the side wall of described inserting groove
Surely there is installation stage clip, the two ends of circuit board are pressed against on resettlement groove and the end of circuit board is plugged in inserting groove and is resisted against institute
State on installation stage clip, the top board undersurface of described housing forms two pressure holding plates corresponding with two gripper shoes respectively, institute
First bulb plunger is bolted with the bottom side of the wall stating pressure holding plate, the arrangement groove sidewall above inserting groove forms first recessed
Hole, the lower end of pressure holding plate is plugged in resettlement groove and the bulb of described first bulb plunger is embedded in described first shrinkage pool, pressure
The bottom surface holding plate is pressed against on the top surface of circuit board, and pressure holding plate forms the upper radiating slotted eye of some " l " shape, described upper radiating
The bottom surface of pressure holding plate is run through in the lower end of slotted eye, the side wall of pressure holding plate is run through in lower end, gripper shoe forms the lower of some " l " shape and dissipates
Heat channel hole, the upper end of described lower radiating slotted eye is connected with resettlement groove, the side wall of gripper shoe is run through in lower end；
Described bottom is pressed against on the bottom face of housing, and the lobe of bottom and the junction of bottom form multiple square
Limited block, the side wall of described limited block is bolted with the second bulb plunger, and the bottom inside wall of housing forms multiple and limit
The stopper slot of position block cooperation, the side wall of described stopper slot forms the second shrinkage pool, and the bulb of described second bulb plunger is nested
In described second shrinkage pool.
By technique scheme, when using, circuit board is clamped in the gripper shoe of bottom and the pressure holding of housing to the present invention
Between plate, specifically, during mounting circuit boards, first the two ends of circuit board are placed on the resettlement groove of gripper shoe, then by circuit board
One end be plugged in inserting groove and so that its end is pressed against and make installation spring-compressed on installation spring, then that circuit board is another
One end is also plugged in another inserting groove and so that its end is pressed against on installation spring, so allows for circuit board and is pressed against
On the resettlement groove of fagging, afterwards the lower end of the pressure holding plate of housing is plugged in resettlement groove and make the first bulb plunger bulb embedding
Put in the first shrinkage pool, with this, pressure holding plate is firmly pressed against on circuit board, the installation and removal of circuit board are all very square
Just, the upper radiating slotted eye on pressure holding plate can radiate to the top surface of circuit board, and the lower radiating slotted eye in gripper shoe can be to circuit
Radiated in the bottom surface of plate, the bottom ventilation groove in the lobe of bottom can radiate to the overall heat in housing, so
Make the good heat dissipation effect of the circuit board in housing.The square limited block of bottom is plugged in the stopper slot of housing bottom, and the
The bulb of two bulb plungers is nested in the second of stopper slot in shrinkage pool so that fixation between housing and bottom, and pacifies
Dress convenient disassembly.
By such scheme, all parts easy installation and removal of the security protection main frame of the present invention, and good heat dissipation effect.
A kind of preferred as such scheme, form placement groove, described placement groove in the middle part of the top board of described housing
In be inserted with ventilation filter and connect cell body, described ventilation filter connects cell body and is bolted to connection on the top surface of housing,
The middle part nesting that ventilation filter connects cell body is fixed with drainage screen block.
A kind of preferred as such scheme, the top board undersurface of described housing is fixed with blower rack, solid on described blower rack
Surely there is ventilation blower, against drainage screen block, the air inlet of ventilation blower is against circuit board for the air outlet of described ventilation blower.
A kind of preferred as such scheme, the middle part of the lobe of described bottom forms support column, described support column
Top surface on form clamping groove, the middle part holding of described circuit board is in described clamping groove.
A kind of preferred as such scheme, the housing bottom wall of described stopper slot side forms multiple grafting positioning
Block, described bottom forms locating slot corresponding with described grafting locating piece, grafting locating piece sleeve is in described locating slot.
A kind of preferred as such scheme, the side wall of described housing forms multiple ventilation slotted eyes.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of description, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.
Brief description:
The following drawings is only intended to, in doing schematic illustration and explanation to the present invention, not delimit the scope of the invention.Wherein:
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the enlarged diagram at a in Fig. 1；
Fig. 3 is the structural representation in the present invention between support column and circuit board.
Specific embodiment:
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail.Hereinafter implement
Example is used for the present invention is described, but is not limited to the scope of the present invention.
Referring to Fig. 1 to Fig. 3, of the present invention a kind of can Fast Installation dismounting security protection main frame, include housing 10 and set
Put the bottom 20 in described housing bottom, the middle part of described bottom has a upwardly extending lobe 21, the two of described lobe
Side forms two gripper shoes 22, and the lobe 21 between described two gripper shoes forms multiple bottom ventilation grooves 211, institute
State the bottom surface that bottom ventilation groove runs through bottom 20, the side wall of gripper shoe 22 forms resettlement groove 23, the side wall of described resettlement groove
On form inserting groove 24, the side wall of described inserting groove is fixed with installation stage clip 30, the two ends of circuit board 1 are pressed against resettlement groove
On the 23 and end of circuit board 1 is plugged in inserting groove 24 and is resisted against on described installation stage clip 30, the lobe 21 of bottom 20
Middle part form support column 25, the top surface of described support column forms clamping groove 251, the middle part holding of described circuit board 1
In described clamping groove 251.
Referring to Fig. 2, the side wall of described housing 10 forms multiple ventilation slotted eyes 11, molding in the top board undersurface of housing 10
There are two pressure holding plates 12 corresponding with two gripper shoes 22 respectively, the bottom side of the wall of described pressure holding plate is bolted with the first bulb
Plunger 13, the resettlement groove 23 side wall of inserting groove 24 top forms the first shrinkage pool 231, the lower end of pressure holding plate 12 is plugged on arrangement
In groove 23 and the bulb of described first bulb plunger 13 is embedded in described first shrinkage pool 231, the bottom surface of pressure holding plate 12 is pressed against
On the top surface of circuit board 1, pressure holding plate 12 forms the upper radiating slotted eye 121 of some " l " shape, the lower end of described upper radiating slotted eye
Run through the bottom surface of pressure holding plate 12, the side wall of pressure holding plate 12 is run through in lower end, and gripper shoe 22 forms the lower radiating groove of some " l " shape
Hole 221, the upper end of described lower radiating slotted eye is connected with resettlement groove 23, the side wall of gripper shoe 22 is run through in lower end.
Referring to Fig. 1, described bottom 20 is pressed against on the bottom face of housing 10, the company of the lobe of bottom 20 21 and bottom 20
The place of connecing forms multiple square limited blocks 26, and the side wall of described limited block is bolted with the second bulb plunger 27, the bottom of housing 10
Multiple stopper slots 14 with limited block 26 cooperation are formed on portion medial wall, the side wall of described stopper slot forms the second shrinkage pool
15, the bulb of described second bulb plunger 27 is nested in described second shrinkage pool 15, housing 10 base wall of stopper slot 14 side
On form multiple grafting locating pieces 16, described bottom 20 forms locating slot 28 corresponding with described grafting locating piece 16,
Grafting locating piece 16 sleeve is in described locating slot 28.
Referring to Fig. 1, form placement groove 17 in the middle part of the top board of described housing 10, in described placement groove, be inserted with ventilation
Filter and connect cell body 40, described ventilation filter connects cell body and is bolted to connection on the top surface of housing 10, ventilation filter
The middle part nesting connecting cell body 40 is fixed with drainage screen block 50, and the top board undersurface of described housing 10 is fixed with blower rack 60, institute
State and ventilation blower 70 is fixed with blower rack, the air outlet of described ventilation blower is against drainage screen block 50, the air inlet of ventilation blower 70
Against circuit board 1.
The present invention in the specific implementation, circuit board 1 be clamped in the gripper shoe 22 of bottom 20 and housing 10 pressure holding plate 12 it
Between, specifically, during mounting circuit boards 1, first the two ends of circuit board 1 are placed on the resettlement groove 23 of gripper shoe 22, then by circuit
One end of plate 2 is plugged in inserting groove 24 and so that its end is pressed against makes installation spring 30 compress on installation spring 30, then will
The other end of circuit board 1 is also plugged in another inserting groove 24 and so that its end is pressed against on installation spring 30, thus makes
Obtain circuit board 1 to be pressed against on the resettlement groove 23 of gripper shoe 22, afterwards the lower end of the pressure holding plate 12 of housing 10 is plugged on resettlement groove
In 23 and so that the bulb of the first bulb plunger 13 is embedded in the first shrinkage pool 231, with this, pressure holding plate 12 is firmly pressed against
On circuit board 1, the installation and removal of circuit board 1 are all very convenient, and the upper radiating slotted eye 121 on pressure holding plate 12 can be to circuit board 1
Top surface radiated, the lower radiating slotted eye 221 in gripper shoe 22 can radiate to the bottom surface of circuit board 1, bottom 20 convex
Play the bottom ventilation groove 211 in portion 21 and the overall heat in housing 10 can be radiated so that circuit in housing 10
The good heat dissipation effect of plate 1.The square limited block 26 of bottom 20 is plugged in the stopper slot 14 of housing 10 bottom, and the second ball head column
The bulb of plug 27 is nested in the second shrinkage pool 15 of stopper slot 14 so that fixation between housing 10 and bottom 20, and
Easy installation and removal.
In sum, all parts easy installation and removal of the security protection main frame of the present invention, and good heat dissipation effect.
Provided by the present invention can Fast Installation dismounting security protection main frame, the only specific embodiment of the present invention, but this
Invention protection domain be not limited thereto, any those familiar with the art the invention discloses technical scope
Interior, change or replacement can be readily occurred in, all should cover within the scope of the present invention.Therefore, protection scope of the present invention should
It is defined by described scope of the claims.
Claims (6)
1. a kind of can Fast Installation dismounting security protection main frame, including housing (10) with the bottom that is arranged on described housing bottom
(20) it is characterised in that:
The middle part of described bottom (20) has upwardly extending lobe (21), and the both sides of described lobe form two supports
Plate (22), the lobe (21) between described two gripper shoes forms multiple bottom ventilation grooves (211), described bottom ventilation
Groove runs through the bottom surface of bottom (20), and the side wall of gripper shoe (22) forms resettlement groove (23), and the side wall of described resettlement groove becomes
Type has inserting groove (24), the side wall of described inserting groove is fixed with installation stage clip (30), the two ends of circuit board (1) are pressed against arrangement
Groove (23) is gone up and the end of circuit board (1) is plugged in inserting groove (24) and is resisted against on described installation stage clip (30), described shell
Two pressure holding plates (12) corresponding with two gripper shoes (22) respectively, described pressure holding plate are formed on the top board undersurface of body (10)
Bottom side of the wall on be bolted with the first bulb plunger (13), resettlement groove (23) the side wall above inserting groove (24) forms first
Shrinkage pool (231), the lower end of pressure holding plate (12) is plugged in resettlement groove (23) and the bulb of described first bulb plunger (13) is set
In described first shrinkage pool (231), the bottom surface of pressure holding plate (12) is pressed against on the top surface of circuit board (1), and pressure holding plate becomes on (12)
Type has the upper radiating slotted eye (121) of some " l " shape, and the bottom surface of pressure holding plate (12), lower end are run through in the lower end of described upper radiating slotted eye
Run through the side wall of pressure holding plate (12), gripper shoe (22) forms the lower radiating slotted eye (221) of some " l " shape, described lower radiating
The upper end of slotted eye is connected with resettlement groove (23), the side wall of gripper shoe (22) is run through in lower end；
Described bottom (20) is pressed against on the bottom face of housing (10), the lobe (21) of bottom (20) and the connection of bottom (20)
Place forms multiple square limited blocks (26), and the side wall of described limited block is bolted with the second bulb plunger (27), housing (10)
Bottom inside wall on form multiple stopper slots (14) coordinating with limited block (26), the side wall of described stopper slot forms
Second shrinkage pool (15), the bulb of described second bulb plunger (27) is nested in described second shrinkage pool (15).
2. according to claim 1 can Fast Installation dismounting security protection main frame it is characterised in that: the top of described housing (10)
Form placement groove (17) in the middle part of plate, be inserted with ventilation filter in described placement groove and connect cell body (40), described divulged information
Filter connects cell body and is bolted to connection on the top surface of housing (10), and the middle part that ventilation filter connects cell body (40) is nested solid
Surely there is drainage screen block (50).
3. according to claim 2 can Fast Installation dismounting security protection main frame it is characterised in that: the top of described housing (10)
Plate bottom surface is fixed with blower rack (60), described blower rack is fixed with ventilation blower (70), the air outlet of described ventilation blower is against mistake
Filter screen block (50), the air inlet of ventilation blower (70) is against circuit board (1).
4. according to claim 1 can Fast Installation dismounting security protection main frame it is characterised in that: described bottom (20) convex
The middle part playing portion (21) forms support column (25), and the top surface of described support column forms clamping groove (251), described circuit board
(1) middle part holding is in described clamping groove (251).
5. according to claim 1 can Fast Installation dismounting security protection main frame it is characterised in that: described stopper slot (14)
Multiple grafting locating pieces (16) are formed on the housing bottom wall of side, described bottom (20) forms and described grafting locating piece
(16) corresponding locating slot (28), grafting locating piece (16) sleeve is in described locating slot (28).
6. according to claim 1 can Fast Installation dismounting security protection main frame it is characterised in that: the side of described housing (10)
Multiple ventilations slotted eye (11) are formed on wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610865340.XA CN106376194B (en) | 2016-09-26 | 2016-09-26 | It is a kind of can Fast Installation disassembly security protection host |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610865340.XA CN106376194B (en) | 2016-09-26 | 2016-09-26 | It is a kind of can Fast Installation disassembly security protection host |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106376194A true CN106376194A (en) | 2017-02-01 |
| CN106376194B CN106376194B (en) | 2018-12-07 |
Family
ID=57897032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610865340.XA Active CN106376194B (en) | 2016-09-26 | 2016-09-26 | It is a kind of can Fast Installation disassembly security protection host |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106376194B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979180A (en) * | 2017-05-25 | 2017-07-25 | 京华建设科技有限公司 | A kind of disassembling and assembling machine device of FFU |
| CN113423225A (en) * | 2021-07-05 | 2021-09-21 | 徐州铭尊机电有限公司 | Electric vehicle controller convenient to disassemble and assemble |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11284374A (en) * | 1998-03-30 | 1999-10-15 | Matsushita Electric Ind Co Ltd | Casing for housing control device mounted on vehicle |
| DE10143259A1 (en) * | 2001-08-28 | 2003-03-20 | Schmid Gmbh & Co Geb | Arrangement for transporting circuit boards into a processing installation, has slot provided for circuit boards in partitioning wall between liquid-tight chambers |
| JP2007134506A (en) * | 2005-11-10 | 2007-05-31 | Yazaki Corp | Printed circuit board fixing structure |
| CN201197229Y (en) * | 2008-04-30 | 2009-02-18 | 天津市松正电动科技有限公司 | Controller for electric vehicle |
| CN203801168U (en) * | 2014-01-16 | 2014-08-27 | 天津市承吉伟业科技发展有限公司 | High-temperature security protecting apparatus |
-
2016
- 2016-09-26 CN CN201610865340.XA patent/CN106376194B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11284374A (en) * | 1998-03-30 | 1999-10-15 | Matsushita Electric Ind Co Ltd | Casing for housing control device mounted on vehicle |
| DE10143259A1 (en) * | 2001-08-28 | 2003-03-20 | Schmid Gmbh & Co Geb | Arrangement for transporting circuit boards into a processing installation, has slot provided for circuit boards in partitioning wall between liquid-tight chambers |
| JP2007134506A (en) * | 2005-11-10 | 2007-05-31 | Yazaki Corp | Printed circuit board fixing structure |
| CN201197229Y (en) * | 2008-04-30 | 2009-02-18 | 天津市松正电动科技有限公司 | Controller for electric vehicle |
| CN203801168U (en) * | 2014-01-16 | 2014-08-27 | 天津市承吉伟业科技发展有限公司 | High-temperature security protecting apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979180A (en) * | 2017-05-25 | 2017-07-25 | 京华建设科技有限公司 | A kind of disassembling and assembling machine device of FFU |
| CN113423225A (en) * | 2021-07-05 | 2021-09-21 | 徐州铭尊机电有限公司 | Electric vehicle controller convenient to disassemble and assemble |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106376194B (en) | 2018-12-07 |
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Effective date of registration: 20181022 Address after: 512026 room 704, block A2, 13 Yanjiang Road, Wujiang District, Shaoguan, Guangdong. Applicant after: Hu Shuangzhen Address before: 523000 productivity building 406, high tech Industrial Development Zone, Songshan Lake, Dongguan, Guangdong Applicant before: Dongguan Lianzhou Intellectual Property Operation Management Co.,Ltd. |
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Effective date of registration: 20191210 Address after: Lang Jun Center No. 28 road 401147 Chongqing city Yubei District Huanglong longta Street Building 3 2-1 Patentee after: Chongqing AOPO Ruisen Technology Co. Ltd. Address before: 512026 room 704, block A2, 13 Yanjiang Road, Wujiang District, Shaoguan, Guangdong. Patentee before: Hu Shuangzhen |
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Effective date of registration: 20200312 Address after: No. 708, building 1, Tian'an science and technology industry building, No. 555, North Panyu Avenue, Donghuan street, Panyu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Zhirongjie Intellectual Property Service Co., Ltd. Address before: Lang Jun Center No. 28 road 401147 Chongqing city Yubei District Huanglong longta Street Building 3 2-1 Patentee before: Chongqing AOPO Ruisen Technology Co. Ltd. |
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Effective date of registration: 20201029 Address after: An Tong ban Ma'an community in the suburb of Tongling City, Anhui Province Patentee after: Tongling Mingxin Plastic Industry Co., Ltd Address before: No. 708, building 1, Tian'an science and technology industry building, No. 555, North Panyu Avenue, Donghuan street, Panyu District, Guangzhou City, Guangdong Province Patentee before: Guangzhou Zhirongjie Intellectual Property Service Co.,Ltd. |