CN108272554B - Mute noise reduction earplug - Google Patents
Mute noise reduction earplug Download PDFInfo
- Publication number
- CN108272554B CN108272554B CN201810279941.1A CN201810279941A CN108272554B CN 108272554 B CN108272554 B CN 108272554B CN 201810279941 A CN201810279941 A CN 201810279941A CN 108272554 B CN108272554 B CN 108272554B
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- China
- Prior art keywords
- releiving
- ball
- control cylinder
- middle control
- diversion pipe
- 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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- 239000007788 liquid Substances 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 8
- 150000002739 metals Chemical class 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 210000002615 epidermis Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 230000000638 stimulation Effects 0.000 abstract description 2
- 210000000613 ear canal Anatomy 0.000 description 23
- 230000000737 periodic effect Effects 0.000 description 5
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000017531 blood circulation Effects 0.000 description 2
- 230000004087 circulation Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000010339 dilation Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 210000003454 tympanic membrane Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
- A61F11/06—Protective devices for the ears
- A61F11/08—Protective devices for the ears internal, e.g. earplugs
- A61F11/10—Protective devices for the ears internal, e.g. earplugs inflatable or expandable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
- A61F11/06—Protective devices for the ears
- A61F11/08—Protective devices for the ears internal, e.g. earplugs
- A61F11/085—Protective devices for the ears internal, e.g. earplugs including an inner channel
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Acoustics & Sound (AREA)
- Biophysics (AREA)
- Otolaryngology (AREA)
- Psychology (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Percussion Or Vibration Massage (AREA)
- Headphones And Earphones (AREA)
Abstract
The present invention relates to a kind of mute noise reduction earplug, this mute noise reduction earplug includes the plug sleeve of the soft elasticity of matter and the release device that is placed in inside plug sleeve；The release device includes middle control cylinder, is provided with central controller in middle control cylinder, which is separated into the disconnected two sections of spaces in left and right for middle control cylinder；Diversion pipe, the free end closing of diversion pipe have been respectively communicated at the both ends of middle control cylinder；Flexible, closed ball of releiving is filled inside the plug sleeve, the inner hollow for ball of releiving, ball of respectively releiving by leading on diversion pipe in succession by guiding tube；Ball of releiving on middle control cylinder one end diversion pipe is interspersed in plug sleeve with the ball of releiving on middle control cylinder other end diversion pipe；Filled with liquid of releiving in middle control cylinder, diversion pipe and ball of releiving；The mute noise reduction ear phone structure is novel, principle is unique, while guaranteeing noise reduction effect, effectively slows down the stimulation to ear channel skin, capilary, improves the comfort of ear, for user provide it is comfortable, quietly meditate space.
Description
Technical field
The present invention relates to a kind of noise reduction earplugs, are a kind of earplugs of passive noise-reduction type particularly.
Background technique
With the quickening pace of modern life, the people in city are busy all day in work, dinner party, are increasingly difficult to set apart
It stays alone, think deeply or quietly reads, the clamour in city is easy for interrupting the thinking to flash across, is also easy to allow the heart of people
End of love obtains irritated；Then noise reduction product comes into being, many kinds of from denoiser, noise cancelling headphone to noise reduction earplug, but from its
For principle of noise reduction, be roughly divided into two class products: one is active noise reduction products, it is by collecting, analyzing external environment sound
Sound wave issues the reverse phase sound wave of ambient sound using feedback wheat, so that ambient sound be offset, and then realizes noise reduction；Due to collecting, divide
Analysis, feedback need certain processing time, therefore active noise reduction product can not eliminate burst, irregular noise；It is another
It is passive noise reduction product, it realizes that noise reduction, common product such as earplug are stifled by earplug by blocking the route of transmission of sound
Ear-drum and extraneous air insulated so that external sound can not be passed to human ear from air, and then are realized passive drop by firmly ear canal
It makes an uproar；Therefore, the closure of product and human ear drastically influences the effect of passive noise reduction, and many products are pursued closure simply, made
It obtains earplug and biggish pressure is generated to human ear, oppress the capilary in ear canal, hinder blood circulation；Long periods of wear can cause ear
It is uncomfortable, or even cause the damage of ear canal.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of mute noise reduction earplug, the mute noise reduction ear phone structure is novel, principle is only
Spy effectively slows down the stimulation to ear channel skin, capilary while guaranteeing noise reduction effect, improves the comfort of ear, for
Family offer is comfortable, quietly meditates space.
To solve the above problems, the technical scheme adopted by the invention is that: this mute noise reduction earplug includes the soft elasticity of matter
Plug sleeve and the release device that is placed in inside plug sleeve；The release device includes middle control cylinder, be provided in middle control cylinder in control
Middle control cylinder is separated into the disconnected two sections of spaces in left and right by device, the central controller；It has been respectively communicated with diversion pipe at the both ends of middle control cylinder,
It closes the free end of diversion pipe；The diversion pipe at middle control cylinder both ends is not connected to mutually；It is filled inside the plug sleeve flexible, closed
It releives ball, the inner hollow for ball of releiving, ball of respectively releiving by leading on diversion pipe in succession by guiding tube；Middle control cylinder one end diversion pipe
On releive ball with it is middle control cylinder other end diversion pipe on ball of releiving be interspersed in plug sleeve；In middle control cylinder, diversion pipe and relax
Filled with liquid of releiving in slow ball.
The beneficial effects of the present invention are: plug sleeve is soft, high resilience, will be slow after compression deformation bounce and it is extensive
Restore shape；When in use, plug sleeve is squeezed into elongated bar shaped by user, is kept for several seconds after being put into ear canal appropriate depth, plug sleeve
It slowly expands, restore shape and be gradually filled in ear canal, ear canal is isolated from the outside by plug sleeve at this time, effectively prevent air will be outer
The noise on boundary is passed to human ear, realizes passive decrease of noise functions；In use, the periodic alternate change of internal central controller
The size in the two sections of spaces separated in middle control cylinder, i.e., right side of the space becomes smaller when the space on the left of central controller becomes larger, right side of the space
Leftward space becomes smaller when becoming larger；When the space in left side becomes larger, the liquid of releiving releived in ball being connected to leftward space passes through guidance
Pipe, diversion pipe are back in the space in left side, and ball of releiving contracting is flat；The space on right side becomes smaller because of volume simultaneously, and internal is releived
Liquid is releived in ball by what diversion pipe, guiding tube injection were connected to right side of the space, these ball expansions of releiving, volume become larger；Work as a left side
When side space, right side of the space inverse change, the ball situation of change of releiving communicated therewith respectively is opposite；Therefore in central controller periodicity
During adjusting, under the premise of guaranteeing that plug sleeve has enough dilation dimensions and can be in close contact with ear canal, respectively releive
Ball is staggered to be collapsed, and is not in the compressing ear canal of long-time, duration；Then, when using this mute noise reduction earplug, always
There are enough ball expansions of releiving, to guarantee that plug sleeve can effectively block the propagation of sound, while ball contracting of releiving always is flat, delays
Compressing of the plug sleeve to ear canal is solved, to promote the flowing of blood in ear canal.
The structure can either guarantee effective sound insulation, noise reduction effect, and compressing of the earplug to ear canal can be effectively relieved, and have
Effect prevents the obstruction of capilary, reduces sense of discomfort, while flat, expansion the ball of releiving that slowly contracts can massage ear canal, promote
Into the circulation of ear canal blood, side's peace and quiet space is opened up in the city of clamour for user, when providing comfortable, quiet meditation for it
It carves.
Preferably, the periphery wall for being arranged in middle control cylinder of each diversion pipe rotational symmetry, adjacent diversion pipe connection
The different ends of middle control cylinder；The structure can be improved the staggered complexity of ball of releiving, and guarantee is adjacent to releive what ball will not synchronize
Contract it is flat, expansion, to guarantee the stabilization of plug sleeve.
Preferably, the ball of releiving is distributed at the 1-3mm of plug sleeve appearance subcutaneous part；The structure size can make plug sleeve
Surface adequately respond collapsing for ball of releiving, to improve the effect of massage, promoting blood circulation.
Preferably, the central controller includes two panels memory metal sheet, the inner wall of memory metal sheet and middle control cylinder is airtight
Connection；Bending Deformation to the left when two memory metal sheet high temperature, Bending Deformation to the right when low temperature；Between two sheet metals
It is provided with heating element, the heating element is by power supply power supply；Energy supply periodic is powered to heating element, powers off, so that two
A memory metal sheet is periodically bending to the left, bending to the right, and then changes the size in central controller two sides space, and then promotes to relax
Slow ball collapses.
Detailed description of the invention
Fig. 1 is this shaft section structural schematic diagram of mute noise reduction earplug one embodiment in high temperature adjustment state.
Fig. 2 is end section structural schematic diagram of the embodiment illustrated in fig. 1 in high temperature adjustment state.
Fig. 3 is shaft section structural schematic diagram of the embodiment illustrated in fig. 1 in low temperature adjustment state.
Fig. 4 is end section structural schematic diagram of the embodiment illustrated in fig. 1 in low temperature adjustment state.
Specific embodiment
Embodiment:
In the embodiment shown in Fig. 1 to Fig. 4, this mute noise reduction earplug includes the plug sleeve 1 of the soft elasticity of matter and is placed in plug
Release device inside set 1；The release device is by power supply power supply；The release device includes middle control cylinder 2, in middle control cylinder 2
It is provided with central controller 3, which is separated into the disconnected two sections of spaces in left and right for middle control cylinder 2；In the present embodiment, described
Central controller 3 includes two panels memory metal sheet 31, the inner wall air-tight connection of memory metal sheet 31 and middle control cylinder 2；Two memory gold
Bending Deformation to the left when belonging to 31 high temperature of piece, Bending Deformation to the right when low temperature；Heating unit is provided between two sheet metals
Part 32, the heating element 32 is by power supply power supply；Diversion pipe 4, the freedom of diversion pipe 4 have been respectively communicated at the both ends of middle control cylinder 2
End seal is closed；The diversion pipe 4 at middle control 2 both ends of cylinder is not connected to mutually；Each 4 rotational symmetry of the diversion pipe is arranged in the outer of middle control cylinder 2
Peripheral wall controls the different ends of cylinder 2 in the adjacent connection of diversion pipe 4；Flexible, closed ball of releiving is filled inside the plug sleeve 1
5, the ball 5 of releiving is distributed at the 1-3mm of 1 exocuticle of plug sleeve, 11 lower part；It releives the inner hollow of ball 5, ball 5 of respectively releiving passes through
Lead on diversion pipe 4 in succession by guiding tube 6；Releive ball 5 and middle 2 other end diversion pipe of control cylinder on middle control 2 one end diversion pipe 4 of cylinder
Ball 5 of releiving on 4 is interspersed in plug sleeve 1；It is empty in the closing that middle control cylinder 2, diversion pipe 4 and ball 5 of releiving, guiding tube 6 form
It is intracavitary to be filled with liquid of releiving.
Plug sleeve 1 is soft, high resilience, and what be will be slow after compression deformation bouncing and restoring to the original state；When in use, it uses
Plug sleeve 1 is squeezed into elongated bar shaped by family, is kept for several seconds after being put into ear canal appropriate depth, the slowly expansion, recovery shape of plug sleeve 1
And be gradually filled in ear canal, ear canal is isolated from the outside by plug sleeve 1 at this time, effectively prevent air that extraneous noise is passed to people
Ear realizes passive decrease of noise functions；In use, it controls in the internal periodic alternate change of central controller 3 and is divided in cylinder 2
Every two sections of spaces size；In the present embodiment, i.e., energy supply periodic to heating element 32 be powered, power-off so that two
Memory metal sheet 31 is periodically bending to the left, bending to the right, and then changes the size in 3 two sides space of central controller, when central controller 3
Right side of the space becomes smaller when the space in left side becomes larger, and leftward space becomes smaller when right side of the space becomes larger；Concrete analysis: the space in left side becomes
When big, the liquid of releiving releived in ball 5 being connected to leftward space is back in the space in left side by guiding tube 6, diversion pipe 4,
Ball 5 of releiving contracts flat；The space on right side becomes smaller because of volume simultaneously, by it is internal releive liquid by diversion pipe 4, the injection of guiding tube 6 with
Right side of the space connection is releived in ball 5, these expansions of ball 5 of releiving, volume become larger；When leftward space, right side of the space inverse change
When, 5 situation of change of ball of releiving communicated therewith respectively is opposite；Therefore during 3 periodic adjustment of central controller, always there is half
The ball 5 of releiving of quantity contract it is flat, the other half quantity releive ball 5 expansion；Guaranteeing plug sleeve 1 with enough dilation dimensions and energy
Under the premise of enough and ear canal is in close contact, respectively releiving, ball 5 is staggered to be collapsed, and is not in the compressing ear canal of long-time, duration；
Then, when using this mute noise reduction earplug, there are enough expansions of ball 5 of releiving always, to guarantee that plug sleeve 1 can be blocked effectively
The propagation of sound, while ball 5 of releiving always contracts flat, alleviates compressing of the plug sleeve 1 to ear canal, to promote the stream of blood in ear canal
It is dynamic.
The structure can either guarantee effective sound insulation, noise reduction effect, and compressing of the earplug to ear canal can be effectively relieved, and have
Effect prevents the obstruction of capilary, reduces sense of discomfort, while flat, expansion the ball 5 of releiving that slowly contracts can massage ear canal, promote
Into the circulation of ear canal blood, side's peace and quiet space is opened up in the city of clamour for user, when providing comfortable, quiet meditation for it
It carves.
Central controller 3 can also have other various structures in addition to above structure, as sliding plug moves back and forth in middle control cylinder 2
Structure, expansion element are in middle 2 periodically of control cylinder or so expansion structure；It is related at the same time it can also which this earplug is applied to other
The field of noise reduction, noise reduction is needed, in extraordinary noise cancelling headphone, to realize the multiple effect for listening song, noise reduction；Such as steamer low frequency noise reduction
Field.
Claims (5)
1. a kind of mute noise reduction earplug, the mute noise reduction earplug of sheet includes the plug sleeve (1) of the soft elasticity of matter and is placed in inside plug sleeve (1)
Release device；The release device is by power supply power supply；It is characterized by: the release device includes middle control cylinder (2), in middle control
Central controller (3) are provided in cylinder (2), which is separated into the disconnected two sections of spaces in left and right for middle control cylinder (2)；In electricity
Under the adjusting in source, the size in two sections of spaces that the central controller can be separated in control cylinder periodically in alternate change；In
The both ends of control cylinder (2) have been respectively communicated with diversion pipe (4), the free end closing of diversion pipe (4)；The diversion pipe at middle control cylinder (2) both ends
(4) it is not connected to mutually；Flexible, the closed ball of releiving (5) of filling inside the plug sleeve (1), the inner hollow of ball of releiving (5),
Ball (5) are respectively releived by leading on diversion pipe (4) in succession by guiding tube (6)；Releiving on middle control cylinder (2) one end diversion pipe (4)
Ball (5) is interspersed in plug sleeve (1) with the ball of releiving (5) on middle control cylinder (2) other end diversion pipe (4)；Middle control cylinder (2),
Filled with liquid of releiving in diversion pipe (4) and ball of releiving (5).
2. mute noise reduction earplug according to claim 1, it is characterised in that: the central controller (3) includes two panels memory
The inner wall of sheet metal (31), memory metal sheet (31) and middle control cylinder (2) is tightly connected；When two memory metal sheet (31) high temperature to
Left lateral bending deformation, Bending Deformation to the right when low temperature；Heating element (32), the heating are provided between two sheet metals
Element (32) is by power supply power supply.
3. mute noise reduction earplug according to claim 1 or 2, it is characterised in that: each diversion pipe (4) rotational symmetry
It is arranged in the periphery wall of middle control cylinder (2), the different ends of cylinder (2) are controlled in adjacent diversion pipe (4) connection.
4. mute noise reduction earplug according to claim 3, it is characterised in that: the ball of releiving (5) is distributed in plug sleeve (1) outside
At the 1-3mm of epidermis (11) lower part.
5. mute noise reduction earplug according to claim 1 or 2, it is characterised in that: the ball of releiving (5) is distributed in plug sleeve
(1) at the 1-3mm of exocuticle (11) lower part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810279941.1A CN108272554B (en) | 2018-04-01 | 2018-04-01 | Mute noise reduction earplug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810279941.1A CN108272554B (en) | 2018-04-01 | 2018-04-01 | Mute noise reduction earplug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108272554A CN108272554A (en) | 2018-07-13 |
| CN108272554B true CN108272554B (en) | 2019-10-22 |
Family
ID=62810771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810279941.1A Active CN108272554B (en) | 2018-04-01 | 2018-04-01 | Mute noise reduction earplug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108272554B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11389332B2 (en) * | 2018-12-18 | 2022-07-19 | Make Great Sales Limited | Noise-cancelling ear plugs |
| CN111970601B (en) * | 2020-08-27 | 2022-08-30 | 广东电网有限责任公司电力科学研究院 | Adjustable intelligent noise reduction earplug and use method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209107775U (en) * | 2018-04-01 | 2019-07-16 | 宫恋 | Mute noise reduction earplug |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB825255A (en) * | 1957-11-19 | 1959-12-09 | Mine Safety Appliances Co | Improvements in ear protecting devices |
| US4060080A (en) * | 1975-03-17 | 1977-11-29 | Taichiro Akiyama | Plug for living body |
| US5483027A (en) * | 1994-08-24 | 1996-01-09 | Krause; Ward B. | Earplug with form-fitting fluid chambers |
| US8956333B2 (en) * | 2005-04-22 | 2015-02-17 | Alternamedics Llc | Medication delivery device |
| US7984716B2 (en) * | 2007-06-22 | 2011-07-26 | Kimberly-Clark Worldwide Inc. | Self-conforming sound attenuation earplug |
| WO2009036344A1 (en) * | 2007-09-12 | 2009-03-19 | Personics Holdings Inc. | Sealing devices |
| EP2055276B1 (en) * | 2007-11-02 | 2015-07-15 | Janßen, Dirk | Hearing protection |
| US7886745B2 (en) * | 2008-06-30 | 2011-02-15 | Kimberly-Clark Worldwide, Inc. | Self-fitting device for location in an ear canal |
| CN201870809U (en) * | 2010-11-23 | 2011-06-22 | 天津市天堰医教科技开发有限公司 | Earplug for protecting ears during flying |
| CN204274777U (en) * | 2014-12-01 | 2015-04-22 | 刘芳 | Hyperbaric oxygentherapy barotrauma of middle ear preventing mean |
| CN105287102A (en) * | 2015-11-04 | 2016-02-03 | 上海大学 | Buffering and pressure reduction earplug |
| CN206603867U (en) * | 2016-12-15 | 2017-11-03 | 吉林大学 | A kind of adjustable earplug |
-
2018
- 2018-04-01 CN CN201810279941.1A patent/CN108272554B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209107775U (en) * | 2018-04-01 | 2019-07-16 | 宫恋 | Mute noise reduction earplug |
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| Publication number | Publication date |
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| CN108272554A (en) | 2018-07-13 |
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Effective date of registration: 20190920 Address after: 312500 No. 168, Kengxi Village, Juzhen, Dashi City, Xinchang County, Shaoxing City, Zhejiang Province Applicant after: XINCHANG CHENGJU AGRICULTURAL TECHNOLOGY Co.,Ltd. Address before: 215000 Jiangsu Suzhou Wuzhong District South Street New Town Jin county 2 phase 50 building 1306 room Applicant before: Gong Lian |
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Effective date of registration: 20211220 Address after: 276000 Economic Development Zone, Mengyin County, Linyi City, Shandong Province Patentee after: SHANDONG LUOXIANG AUTOMOBILE MANUFACTURING Co.,Ltd. Address before: 312500 No. 168, Keng Xi village, dashiju Town, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: XINCHANG CHENGJU AGRICULTURAL TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20221109 Address after: 273300 No.207, East Second floor, Administration Committee of Shandong Pingyi Economic Development Zone, west section of Jinhua Road, Pingyi Economic Development Zone, Linyi City, Shandong Province Patentee after: Pingyi Economic Development Zone Investment Development Co.,Ltd. Address before: 276000 Economic Development Zone, Mengyin County, Linyi City, Shandong Province Patentee before: SHANDONG LUOXIANG AUTOMOBILE MANUFACTURING Co.,Ltd. |