CN110965912B - Sealed sound-proof door - Google Patents
Sealed sound-proof door Download PDFInfo
- Publication number
- CN110965912B CN110965912B CN201811157856.4A CN201811157856A CN110965912B CN 110965912 B CN110965912 B CN 110965912B CN 201811157856 A CN201811157856 A CN 201811157856A CN 110965912 B CN110965912 B CN 110965912B
- Authority
- CN
- China
- Prior art keywords
- mounting groove
- door
- pressing rod
- sound insulation
- sealed
- 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.)
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Links
- 238000009413 insulation Methods 0.000 claims description 44
- 238000007789 sealing Methods 0.000 claims description 36
- 238000001125 extrusion Methods 0.000 claims description 23
- 230000007246 mechanism Effects 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 241000607479 Yersinia pestis Species 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000003028 elevating effect Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009323 psychological health Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/20—Doors, windows, or like closures for special purposes; Border constructions therefor for insulation against noise
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
- E06B7/18—Sealing arrangements on wings or parts co-operating with the wings by means of movable edgings, e.g. draught sealings additionally used for bolting, e.g. by spring force or with operating lever
- E06B7/20—Sealing arrangements on wings or parts co-operating with the wings by means of movable edgings, e.g. draught sealings additionally used for bolting, e.g. by spring force or with operating lever automatically withdrawn when the wing is opened, e.g. by means of magnetic attraction, a pin or an inclined surface, especially for sills
- E06B7/21—Sealing arrangements on wings or parts co-operating with the wings by means of movable edgings, e.g. draught sealings additionally used for bolting, e.g. by spring force or with operating lever automatically withdrawn when the wing is opened, e.g. by means of magnetic attraction, a pin or an inclined surface, especially for sills with sealing strip movable in plane of wing
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
- E06B7/18—Sealing arrangements on wings or parts co-operating with the wings by means of movable edgings, e.g. draught sealings additionally used for bolting, e.g. by spring force or with operating lever
- E06B7/20—Sealing arrangements on wings or parts co-operating with the wings by means of movable edgings, e.g. draught sealings additionally used for bolting, e.g. by spring force or with operating lever automatically withdrawn when the wing is opened, e.g. by means of magnetic attraction, a pin or an inclined surface, especially for sills
- E06B7/215—Sealing arrangements on wings or parts co-operating with the wings by means of movable edgings, e.g. draught sealings additionally used for bolting, e.g. by spring force or with operating lever automatically withdrawn when the wing is opened, e.g. by means of magnetic attraction, a pin or an inclined surface, especially for sills with sealing strip being moved to a retracted position by elastic means, e.g. springs
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The invention provides a sealed sound-proof door which comprises a door frame and a door plate, wherein one side of the door plate is hinged to the door frame, the bottom end of the door plate is provided with a sealed sound-proof device, when the door plate is closed, the sealed sound-proof device is in a sealed sound-proof state, and when the door plate is opened, the sealed sound-proof device is separated from the sealed sound-proof state. According to the sealed sound-insulating door, the bottom end of the door plate is provided with the sealed sound-insulating device, so that when the door plate is closed, the sealed sound-insulating strip of the sealed sound-insulating device can automatically descend to seal and insulate the gap between the door plate and the ground, the sound interference is avoided, the personal privacy is protected, dust and pests outside the door can be effectively prevented from entering a room, and the indoor environmental sanitation is facilitated.
Description
Technical Field
The invention relates to a sound insulation door, in particular to a sealed sound insulation door.
Background
Along with the improvement of the living standard of people, the requirements on office and living environments are higher and higher, the environment is required to be attractive, meanwhile, the environment is required to be quiet, the environment is more comfortable, and the living environment is beneficial to physical and psychological health. However, in the structure of the conventional door, gaps exist between the bottom ends of the door leaves and the ground, so that the sound insulation effect is poor, and the house of people is easy to interfere with each other due to respective activities, so that great inconvenience is brought to people in learning and entertainment. Secondly, dust and pests outside the door can easily enter from the gaps, and the indoor environmental sanitation is affected.
Disclosure of Invention
In view of the foregoing, the present invention provides a sealed soundproof door to solve the above-mentioned problems.
The technical scheme of the invention is as follows:
the utility model provides a sealed soundproof door, includes door frame and door plant, and one side of door plant articulates on the door frame, and the bottom of door plant is provided with sealed sound insulation device, and when closing the door plant, sealed sound insulation device is in sealed sound insulation state, and when opening the door plant, sealed sound insulation device breaks away from sealed sound insulation state.
Further, sealed sound insulation device includes extrusion elevating system and sealed sound insulation strip, and mounting groove and lower mounting groove have been seted up to the bottom of door plant, and the both ends of going up the mounting groove have the end wall, and the door plant transversely runs through to the mounting groove down, and extrusion elevating system installs in last mounting groove, and extrusion elevating system's extrusion end stretches out in the end wall to supply extrusion elevating system to drive sealed sound insulation strip and go up and down, sealed sound insulation strip installs in the mounting groove down.
Further, extrusion elevating system includes depression bar, horizontal elastic component, two vertical elastic components and two wedge, depression bar horizontal installation is in last mounting groove, the one end of depression bar is connected with the end wall of last mounting groove through horizontal elastic component, the through-hole has been seted up to the other end wall of mounting groove, the other end of depression bar stretches out from the through-hole, the depression bar passes through two vertical elastic components and is connected with sealed sound insulation strip, a wedge rigid coupling is in the bottom surface of depression bar, another wedge rigid coupling is in the top surface of sealed sound insulation strip, two opposite inclined planes of wedge match to when supplying the depression bar to remove to horizontal elastic component one end, drive sealed sound insulation strip decline.
Further, a lifting sliding rail mechanism is arranged between the sealing sound insulation strip and the lower mounting groove so as to reduce lifting resistance.
Further, extrusion elevating system includes rack depression bar, horizontal elastic component, two gears and two lifter, and the one end of rack depression bar is connected with the end wall of last mounting groove through horizontal elastic component, and the through-hole has been seted up to the other end wall of going up the mounting groove, and the other end of rack depression bar stretches out from the through-hole, and two gears pass through the pivot rotatably to be installed in last mounting groove, and the junction of rack depression bar and each gear has the rack, rack and gear engagement, and the one end of each lifter articulates on each gear, and the other end of each lifter articulates on sealed sound insulation strip.
Further, rotatable idler wheels are installed at one end of the hinge shaft at the hinge end of each lifting rod and the sealed sound insulation strip, limiting grooves are formed in the positions, corresponding to the idler wheels, of the upper mounting groove and the lower mounting groove, and each idler wheel is rotatably installed in each limiting groove.
Further, the sealing sound insulation strip is an elastic plastic strip.
Further, the horizontal elastic piece and the vertical elastic piece adopt springs.
Further, the extending end of the compression bar is provided with a smooth inclined surface so as to enable the door frame to slide along the smooth inclined surface to retract when being extruded.
Further, the extending end of the rack pressing rod is provided with a smooth inclined surface so that the rack pressing rod can slide along the smooth inclined surface to retract when the door frame is extruded.
According to the sealed sound-insulating door, the bottom end of the door plate is provided with the sealed sound-insulating device, so that when the door plate is closed, the sealed sound-insulating strip of the sealed sound-insulating device can automatically descend to seal and insulate the gap between the door plate and the ground, the sound interference is avoided, the personal privacy is protected, dust and pests outside the door can be effectively prevented from entering a room, and the indoor environmental sanitation is facilitated.
Drawings
FIG. 1 is a perspective view of a sealed soundproof door of the present invention;
FIG. 2 is a schematic partial cross-sectional view of a first preferred embodiment of a sealed acoustic door of the present invention with the door panel open;
FIG. 3 is a schematic partial cross-sectional view of a first preferred embodiment of a sealed acoustic door of the present invention closing a door panel;
FIG. 4 is a schematic partial cross-sectional view of a second preferred embodiment of a sealed acoustic door of the present invention with a door panel open;
fig. 5 is a schematic partial cross-sectional view of a second preferred embodiment of a sealed acoustic door of the present invention closing a door panel.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be understood that the detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, the present invention provides a sealed soundproof door, which comprises a door frame 1 and a door plate 2, wherein one side of the door plate 2 is hinged on the door frame 1, a sealed soundproof device 3 is arranged at the bottom end of the door plate 2, the sealed soundproof device 3 is in a sealed soundproof state when the door plate 2 is closed, and the sealed soundproof device 3 is separated from the sealed soundproof state when the door plate 2 is opened.
Referring to fig. 2 and 3, the sealing and sound insulation device 3 includes an extrusion lifting mechanism 31 and a sealing and sound insulation strip 32, an upper mounting groove 21 and a lower mounting groove 22 are provided at the bottom end of the door panel 2, end walls are provided at both ends of the upper mounting groove 21, the lower mounting groove 22 transversely penetrates the door panel 2, the extrusion lifting mechanism 31 is installed in the upper mounting groove 21, the extrusion end of the extrusion lifting mechanism 31 extends out of the end walls, the sealing and sound insulation strip 32 is installed in the lower mounting groove 22, when the door panel 2 is closed, the extrusion end of the extrusion lifting mechanism 31 is extruded by the door frame 1 and is retracted into the upper mounting groove 21, and drives the sealing and sound insulation strip 32 to descend, the sealing and sound insulation strip 32 seals the gap between the door panel 2 and the ground to insulate sound, and when the door panel 2 is opened, the extrusion end of the extrusion lifting mechanism 31 extends out of the end walls under the action of elasticity and drives the sealing and sound insulation strip 32 to ascend, and the sealing and sound insulation strip 32 is hidden in the lower mounting groove 22.
In one embodiment, the extrusion lifting mechanism 31 includes a compression bar 311, a horizontal elastic member 312, two vertical elastic members 313 and two wedge blocks 314, the compression bar 311 is horizontally installed in the upper installation groove 21, one end of the compression bar 311 is connected with the end wall of the upper installation groove 21 through the horizontal elastic member 312, a through hole is formed in the other end wall of the installation groove 21, the other end of the compression bar 311 extends out of the through hole, the compression bar 311 is connected with the sealing sound insulation strip 32 through the two vertical elastic members 313, one wedge block 314 is fixedly connected to the bottom surface of the compression bar 311, the other wedge block 314 is fixedly connected to the top surface of the sealing sound insulation strip 32, and two opposite inclined surfaces of the two wedge blocks 314 are in sliding fit so that the compression bar 311 drives the sealing sound insulation strip 32 to descend when moving towards one end of the horizontal elastic member 312.
Further, a lifting slide rail mechanism is provided between the sealing soundproof strip 32 and the lower mounting groove 22 to reduce lifting resistance.
Referring to fig. 4 and 5, in another embodiment, the pressing lifting mechanism 31 includes a rack pressing rod 311A, a horizontal elastic member 312A, two gears 313A and two lifting rods 314A, one end of the rack pressing rod 311A is connected with the end wall of the upper mounting groove 21 through the horizontal elastic member 312A, a through hole is formed in the other end wall of the upper mounting groove 21, the other end of the rack pressing rod 311A extends out of the through hole, the two gears 313A are rotatably mounted in the upper mounting groove 21 through a rotating shaft, a rack is arranged at a connection position between the rack pressing rod 311A and each gear 313A, the rack is meshed with the gears 313A, one end of each lifting rod 314A is hinged on each gear 313A, and the other end of each lifting rod 314A is hinged on the sealing sound insulation strip 32. When the extending end of the rack pressing rod 311A is extruded by the door frame 1 to retract, the two gears 313A are driven to rotate against the clock, and the two gears 313A drive the sealing sound insulation strip 32 to descend through the lifting rod 314A so as to realize sealing sound insulation; when the door panel 2 is opened, the rack compression bar 311A moves towards the extending end thereof under the action of the elastic force, and drives the two gears 313A to rotate clockwise, and the two gears 313A drive the sealing and sound insulation strip 32 to rise through the lifting rod 314A so as to be hidden in the lower mounting groove 22.
Further, a rotatable roller is mounted at one end of the hinge shaft between each lifting rod 314A and the hinge end of the sealing sound insulation strip 32, a limit groove is formed in the upper mounting groove 21 and the lower mounting groove 22 at the position corresponding to the roller, and each roller is rotatably mounted in each limit groove, so that the sealing sound insulation strip 32 can be lifted more stably and smoothly.
The extending ends of the pressing rod 311 and the rack pressing rod 311A are respectively provided with a smooth inclined surface so as to enable the door frame 1 to slide along the smooth inclined surface to retract when being extruded.
In this embodiment, the sealing and sound insulating strip 32 is an elastic plastic strip. The horizontal elastic member 312, the vertical elastic member 313 and the horizontal elastic member 312A may be springs.
According to the sealed sound-insulating door, the sealed sound-insulating device 3 is arranged at the bottom end of the door plate 2, so that when the door plate 2 is closed, the sealed sound-insulating strip 32 of the sealed sound-insulating device 3 can automatically descend to seal and insulate a gap between the door plate 2 and the ground, sound interference is avoided, personal privacy is protected, dust and pests outside the door can be effectively prevented from entering a room, and indoor environmental sanitation is facilitated.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present invention.
Claims (4)
1. The sealing sound-proof door comprises a door frame (1) and a door plate (2), wherein one side of the door plate (2) is hinged to the door frame (1), and the sealing sound-proof door is characterized in that a sealing sound-proof device (3) is arranged at the bottom end of the door plate (2), when the door plate (2) is closed, the sealing sound-proof device (3) is in a sealing sound-proof state, and when the door plate (2) is opened, the sealing sound-proof device (3) is separated from the sealing sound-proof state;
the sealing sound insulation device (3) comprises an extrusion lifting mechanism (31) and a sealing sound insulation strip (32), an upper mounting groove (21) and a lower mounting groove (22) are formed in the bottom end of the door plate (2), end walls are arranged at the two ends of the upper mounting groove (21), the lower mounting groove (22) transversely penetrates through the door plate (2), the extrusion lifting mechanism (31) is arranged in the upper mounting groove (21), the extrusion end of the extrusion lifting mechanism (31) extends out of the end walls, and the extrusion lifting mechanism (31) drives the sealing sound insulation strip (32) to lift, so that the sealing sound insulation strip (32) is arranged in the lower mounting groove (22);
the sealing sound insulation strip (32) is an elastic plastic strip;
the extrusion lifting mechanism (31) comprises a pressing rod (311), a horizontal elastic piece (312), two vertical elastic pieces (313) and two wedge blocks (314), wherein the pressing rod (311) is horizontally arranged in an upper mounting groove (21), one end of the pressing rod (311) is connected with the end wall of the upper mounting groove (21) through the horizontal elastic piece (312), a through hole is formed in the other end wall of the mounting groove (21), the other end of the pressing rod (311) extends out of the through hole, the pressing rod (311) is connected with a sealing sound insulation strip (32) through the two vertical elastic pieces (313), one wedge block (314) is fixedly connected to the bottom surface of the pressing rod (311), the other wedge block (314) is fixedly connected to the top surface of the sealing sound insulation strip (32), and two opposite inclined surfaces of the two wedge blocks (314) are in sliding fit so as to drive the sealing sound insulation strip (32) to descend when the pressing rod (311) moves towards one end of the horizontal elastic piece (312).
The extending end of the compression bar (311) is provided with a smooth inclined plane so as to enable the door frame (1) to slide along the smooth inclined plane to retract when being extruded;
or,
the extrusion lifting mechanism (31) comprises a rack pressing rod (311A), a horizontal elastic piece (312A), two gears (313A) and two lifting rods (314A), one end of the rack pressing rod (311A) is connected with the end wall of the upper mounting groove (21) through the horizontal elastic piece (312A), a through hole is formed in the other end wall of the upper mounting groove (21), the other end of the rack pressing rod (311A) extends out of the through hole, the two gears (313A) are rotatably arranged in the upper mounting groove (21) through a rotating shaft, racks are arranged at the joint of the rack pressing rod (311A) and each gear (313A), the racks are meshed with the gears (313A), one end of each lifting rod (314A) is hinged to each gear (313A), and the other end of each lifting rod (314A) is hinged to the sealing sound insulation strip (32);
the extending end of the rack pressing rod (311A) is provided with a smooth inclined plane so as to enable the door frame (1) to slide along the smooth inclined plane to retract when being extruded.
2. The sealed sound-insulating door according to claim 1, wherein a lifting slide rail mechanism is provided between the sealed sound-insulating strip (32) and the lower mounting groove (22) to reduce lifting resistance.
3. The sealed soundproof door according to claim 1, wherein a rotatable roller is mounted at one end of a hinge shaft of each lifting rod (314A) and a hinge end of the sealed soundproof strip (32), a limit groove is formed in the upper mounting groove (21) and the lower mounting groove (22) at a position corresponding to the roller, and each roller is rotatably mounted in each limit groove.
4. The sealed sound-insulating door according to claim 1, characterized in that said horizontal elastic member (312) and vertical elastic member (313) are springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811157856.4A CN110965912B (en) | 2018-09-30 | 2018-09-30 | Sealed sound-proof door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811157856.4A CN110965912B (en) | 2018-09-30 | 2018-09-30 | Sealed sound-proof door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110965912A CN110965912A (en) | 2020-04-07 |
| CN110965912B true CN110965912B (en) | 2024-01-05 |
Family
ID=70028816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811157856.4A Active CN110965912B (en) | 2018-09-30 | 2018-09-30 | Sealed sound-proof door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110965912B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111749598B (en) * | 2020-07-01 | 2022-08-16 | 苏州至上软件科技有限公司 | Magnetic control type hotel door anti-blocking small advertisement system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4073093A (en) * | 1975-08-18 | 1978-02-14 | Yoshida Kogyo K.K. | Soundproof door |
| CN102787794A (en) * | 2012-08-31 | 2012-11-21 | 苏州岸肯电子科技有限公司 | Self-sealing device of soundproof door of soundproof room |
| JP5334232B1 (en) * | 2013-06-28 | 2013-11-06 | 有限会社小林スチール工業 | Sliding door type soundproof door |
| CN205663385U (en) * | 2015-09-30 | 2016-10-26 | 江苏肯帝亚森工科技股份有限公司 | Cam drive's dustproof soundproof door |
| CN106499316A (en) * | 2016-12-16 | 2017-03-15 | 重庆名风家俱有限公司 | A kind of door-plate sealing mechanism |
| CN107724920A (en) * | 2017-10-20 | 2018-02-23 | 株洲合力电磁技术有限公司 | A kind of door bottom protection sound-insulation strip and protective door |
| CN207110877U (en) * | 2017-08-16 | 2018-03-16 | 无锡市顺来净化科技有限公司 | Cleaning door with lifting dust arrester |
| CN209855627U (en) * | 2018-09-30 | 2019-12-27 | 广东威法定制家居股份有限公司 | Sealed soundproof door |
-
2018
- 2018-09-30 CN CN201811157856.4A patent/CN110965912B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4073093A (en) * | 1975-08-18 | 1978-02-14 | Yoshida Kogyo K.K. | Soundproof door |
| CN102787794A (en) * | 2012-08-31 | 2012-11-21 | 苏州岸肯电子科技有限公司 | Self-sealing device of soundproof door of soundproof room |
| JP5334232B1 (en) * | 2013-06-28 | 2013-11-06 | 有限会社小林スチール工業 | Sliding door type soundproof door |
| CN205663385U (en) * | 2015-09-30 | 2016-10-26 | 江苏肯帝亚森工科技股份有限公司 | Cam drive's dustproof soundproof door |
| CN106499316A (en) * | 2016-12-16 | 2017-03-15 | 重庆名风家俱有限公司 | A kind of door-plate sealing mechanism |
| CN207110877U (en) * | 2017-08-16 | 2018-03-16 | 无锡市顺来净化科技有限公司 | Cleaning door with lifting dust arrester |
| CN107724920A (en) * | 2017-10-20 | 2018-02-23 | 株洲合力电磁技术有限公司 | A kind of door bottom protection sound-insulation strip and protective door |
| CN209855627U (en) * | 2018-09-30 | 2019-12-27 | 广东威法定制家居股份有限公司 | Sealed soundproof door |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110965912A (en) | 2020-04-07 |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No. 16, Weifa Road, Xiaolan Town, Zhongshan City, Guangdong Province Applicant after: Guangdong Weifa Household Co.,Ltd. Address before: No. 1 Ailang, Industrial Zone, Xiaolan Town, Zhongshan City, Guangdong Province, 528415 Applicant before: ZHONGSHAN VIFA HOUSEHOLD PRODUCT CO.,LTD. |
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