CN110572543A - Camera lens - Google Patents
Camera lens Download PDFInfo
- Publication number
- CN110572543A CN110572543A CN201910847190.3A CN201910847190A CN110572543A CN 110572543 A CN110572543 A CN 110572543A CN 201910847190 A CN201910847190 A CN 201910847190A CN 110572543 A CN110572543 A CN 110572543A
- Authority
- CN
- China
- Prior art keywords
- lens
- wall
- rubber
- ring
- hole
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 230000000694 effects Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 34
- 238000003825 pressing Methods 0.000 claims description 16
- 238000005507 spraying Methods 0.000 claims description 11
- 241000446313 Lamella Species 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 9
- 239000004744 fabric Substances 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 3
- 210000000695 crystalline len Anatomy 0.000 description 90
- 238000004140 cleaning Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
- B08B1/143—Wipes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Camera Bodies And Camera Details Or Accessories (AREA)
- Lens Barrels (AREA)
Abstract
The invention provides a camera lens, which comprises a lens cone, an auxiliary unit, a sealing rubber ring, an internal fixing unit, a lens and a magnetic ring, wherein the lens cone is arranged on the auxiliary unit; the invention can solve the problems that the existing camera lens is mostly wiped by using lens cloth after being used and then is covered by the lens cover to prevent dust, rain and the like from falling off from the lens; however, the existing lens cover mostly adopts a separating structure, and the separating lens cover is easy to lose in the using process; in addition, when the lens cover is designed separately, the lens cover is taken down and placed on the object placing table to easily fall into dust when the camera is used; in addition, the existing lens is mostly wiped by manually holding wiping cloth by hand, and fingerprints are easily left on the lens when the lens is wiped by manually holding the wiping cloth by hand; the shooting effect of the lens is influenced; even the service life of the lens is affected.
Description
Technical Field
The invention relates to the technical field of multimedia equipment, in particular to a camera lens.
Background
The camera lens is the most key equipment of a video system, the quality (index) advantage of the camera directly influences the overall index of the camera, the lens is equivalent to the crystalline lens of human eyes, and if no crystalline lens exists, the human eyes cannot see any object; if no lens exists, the image output by the camera; is a white one-chip, there is no clear image output; it is essential for the protection of the camera lens in use;
generally, after the existing camera lens is used, lens cloth is mostly adopted for wiping, and then a lens cover is used for covering to prevent dust, rain and the like from falling off the camera lens; however, the existing lens cover mostly adopts a separating structure, and the separating lens cover is easy to lose in the using process; in addition, when the lens cover is designed separately, the lens cover is taken down and placed on the object placing table to easily fall into dust when the camera is used; in addition, the existing lens is mostly wiped by manually holding wiping cloth by hand, and fingerprints are easily left on the lens when the lens is wiped by manually holding the wiping cloth by hand; the shooting effect of the lens is influenced; and even the useful life of the lens.
Therefore, in order to prolong the service life of the existing camera lens, the cleanness of the surface of the camera lens is ensured, and workers can conveniently wipe the lens; the invention provides a camera lens.
Disclosure of Invention
in order to achieve the above object, the present invention adopts the following technical scheme that an image pickup lens comprises a lens barrel, an auxiliary unit, a sealing rubber ring, an internal fixing unit, a lens and a magnetic ring; the front end of the lens cone is connected with an auxiliary unit through a bearing ring, a sealing rubber ring is arranged in the middle of the lens cone, a lens is arranged in the lens cone at the rear side of the sealing rubber ring, the internal fixing unit is arranged in the lens cone and matched with the auxiliary unit; a magnetic ring is arranged on the outer wall of the lens cone; the inner wall of the rear end of the lens cone is provided with a thread groove; wherein:
The auxiliary unit comprises an inner auxiliary sleeve, an auxiliary spring, a sealing cover, a petal-type snap ring, a magnetic block, a wiping sponge and a pressing type liquid spraying module; the outer wall of the front end of the inner auxiliary sleeve is uniformly provided with a cavity, an auxiliary spring is arranged in the cavity, and the sealing cover is arranged in the inner auxiliary sleeve in a sliding fit mode; the outer wall of the circumference of the sealing cover is uniformly provided with flap type snap rings through pin shafts; the outer wall of the petal-type clamping ring is provided with a magnetic block, the inner side wall of the petal-type clamping ring is provided with wiping sponge in a sliding fit mode, and the pressing type liquid spraying modules are intermittently arranged in the wiping sponge arranged in the petal-type clamping ring in the circumferential direction; when the lens of the camera is needed to be used for shooting; the petal-type clamping ring is opened, the petal-type clamping ring is adsorbed under the action of the magnetic ring, and shooting is carried out through a camera; after shooting is finished, closing the flap type snap ring; the petal-type snap rings are mutually attracted through the magnetic blocks, so that the petal-type snap rings are spliced into a complete ring to seal the lens, dust is prevented from entering the lens surface and falling off, and the service life of the lens is prolonged; the shooting effect of the camera in the later period is ensured.
The inner fixing unit comprises a rubber lantern ring, a fixing spring, a movable column and a butting block; the rubber lantern ring is arranged on the inner wall of the lens cone in a clamping manner; guide holes are uniformly arranged in the rubber lantern ring, the guide holes are of a through structure, and the hole diameter in the middle of each guide hole is larger than the hole diameters on the two sides; the fixed spring is arranged in the middle of the guide hole, the movable column is arranged in the guide hole in a sliding fit mode, and the outer wall of the middle of the movable column penetrates through the fixed spring; a contact block is arranged at the front end of the movable column, the contact block is made of rubber, and the contact block is attached to the inner wall of the lens; when the inner auxiliary sleeve and the camera are installed in a threaded fit mode, the installation end of the camera is matched with the movable column to push and extend the movable column, so that the contact block is in contact with the inner wall of the lens to fix the lens; and the integrality of the protection lens that the rubber material can be fine is set to the conflict piece with the lens crushing in order to prevent the conflict piece.
The pressing type liquid spraying module comprises a rubber box body, a sealing plug, a pressing spring, a hole plug and an ejector rod; the rubber box body is provided with a liquid inlet hole, a sealing plug is arranged on the liquid inlet hole, liquid outlets are uniformly formed in the side wall of the rubber box body, and balls are movably arranged at the liquid outlets; a hole plug is arranged at the liquid outlet, and the inner wall of the hole plug is connected with the inner wall of the rubber box body through a pressing spring; the outer wall of the hole plug is provided with an ejector rod, and the outer wall of the ejector rod is provided with a ball in a movable connection mode; when the wiping sponge is pressed, the ejector rod is jacked and extended through the wiping sponge, so that the hole plug is separated from the liquid outlet in the rubber box body; the cleaning liquid in the rubber box body overflows to the surface of the wiping sponge; the sponge is convenient to wipe to clean the surface of the lens; the arranged pressing type liquid spraying module can promote the cleaning effect of the wiping sponge on the surface of the lens; is convenient for wiping off stains which are difficult to clean on the lens.
the uniformly arranged petal-type snap rings are spliced into a disc shape, and sealing rubber strips are arranged on the outer walls of the petal-type snap rings; set into discoid be convenient for sealed with lamella formula snap ring, prevent that the dust from entering into the lens inside, guaranteed the clean on lens surface.
Preferably; grooves are uniformly formed in the outer wall of the wiping sponge; the outer wall of the wiping sponge is uniformly provided with the grooves, so that the wiping effect of the sponge can be promoted; and can ensure that the surface of the lens is wiped clean.
Preferably; a rubber pad seal is arranged at the contact position of the hole plug and the inner wall of the rubber box body; the arranged rubber pad can prevent liquid in the rubber box body from overflowing when unnecessary; the sealing performance of the liquid in the sealing device is ensured.
Advantageous effects
The lens is sealed through the multi-flap type snap ring, so that the lens is prevented from falling into dust, and the multi-flap type snap ring is convenient to open and close; the lens cover is convenient for workers to use, and the phenomenon that the commonly adopted separated lens cover is easy to lose can be prevented; the wiping sponge is arranged on the petal-type clamping ring, so that the surface of the lens is wiped conveniently, and the cleanness of the surface of the lens is ensured;
The push type liquid spraying module provided by the invention can promote the cleaning effect of the wiping sponge on the surface of the lens; the dirt which is difficult to clean on the lens can be conveniently erased;
thirdly, the inner fixing unit provided by the invention enables the contact block to be in contact with the inner wall of the lens through the top-extending movable column so as to well fix the lens; the phenomenon that the lens mounted on the camera in the market at the day before shakes is avoided; and the integrality of the protection lens that the rubber material can be fine is set to the conflict piece with the lens crushing in order to prevent the conflict piece.
Drawings
the invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a front view of the present invention;
FIG. 2 is an expanded view of the flapper collar of the present invention;
FIG. 3 is a side sectional view of the present invention;
fig. 4 is a partial enlarged view of the invention at a in fig. 3.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings. In this process, the width of the lines or the size of the components in the drawings may be exaggerated for clarity and convenience of description.
in addition, the following terms are defined based on the functions of the present invention, and may be different depending on the intention of the user or the operator or the convention; the left, right, front, back and other directions described in the embodiment of the application all use the product as a reference object, and are opposite to the left, right, front, back and other directions seen by the naked eyes of a technician; therefore, these terms are defined based on the entire contents of the present specification.
As shown in fig. 1 to 4, an imaging lens includes a lens barrel 1, an auxiliary unit 2, a sealing rubber ring 3, an internal fixing unit 4, a lens 5, and a magnetic ring 6; the front end of the lens cone 1 is connected with an auxiliary unit 2 through a bearing ring, a sealing rubber ring 3 is arranged in the middle of the lens cone 1, a lens 5 is arranged in the lens cone 1 at the rear side of the sealing rubber ring 3, the internal fixing unit 4 is arranged in the lens cone 1, and the internal fixing unit 4 is matched with the auxiliary unit 2; a magnetic ring 6 is arranged on the outer wall of the lens barrel 1; the inner wall of the rear end of the lens barrel 1 is provided with a thread groove; wherein:
The auxiliary unit 2 comprises an inner auxiliary sleeve 21, an auxiliary spring 22, a sealing cover 23, a petal-type snap ring 24, a magnetic block 25, a wiping sponge 26 and a pressing type liquid spraying module 27; cavities are uniformly formed in the outer wall of the front end of the inner auxiliary sleeve 21, an auxiliary spring 22 is arranged in each cavity, and the sealing cover 23 is arranged in the inner auxiliary sleeve 21 in a sliding fit mode; the outer wall of the circumference of the sealing cover 23 is uniformly provided with flap type snap rings 24 through pin shafts; the uniformly arranged petal-type snap rings 24 are spliced into a disc shape, and sealing rubber strips are arranged on the outer walls of the petal-type snap rings 24; the flap-type snap ring 24 is arranged into a disc shape, so that sealing is facilitated, dust is prevented from entering the inside of the lens, and the surface of the lens is ensured to be clean; the outer wall of the petal-type snap ring 24 is provided with a magnetic block 25, the inner side wall of the petal-type snap ring 24 is provided with a wiping sponge 26 in a sliding fit mode, and the pressing type liquid spraying modules 27 are intermittently arranged in the wiping sponge 26 arranged in the petal-type snap ring 24 in the circumferential direction; grooves are uniformly formed in the outer wall of the wiping sponge 26; the outer wall of the wiping sponge 26 is uniformly provided with grooves to promote the wiping effect of the sponge; and can ensure that the surface of the lens 5 is wiped clean; when the lens 5 of the camera is needed to be used for shooting; the petal-type clamping ring 24 is opened, the petal-type clamping ring 24 is adsorbed under the action of the magnetic ring 6, and shooting is carried out through a camera; after shooting is finished, the flap type snap ring 24 is closed; the petal-type snap rings 24 are mutually attracted through the magnetic blocks 25, so that the petal-type snap rings are spliced into a complete ring to seal the lens 5, the dust is prevented from entering the lens surface and falling ash is prevented, and the service life of the lens 5 is prolonged; the shooting effect of the camera in the later period is ensured.
The pressing type liquid spraying module 27 comprises a rubber box body 271, a sealing plug 272, a pressing spring 273, a hole plug 274 and a top rod 275; a liquid inlet hole is formed in the rubber box body 271, a sealing plug 272 is arranged on the liquid inlet hole, liquid outlets are uniformly formed in the side wall of the rubber box body 271, and balls are movably arranged at the liquid outlets; a hole plug 274 is arranged at the liquid outlet, and a rubber pad seal is arranged at the contact position of the hole plug 274 and the inner wall of the rubber box body 271; the arranged rubber pad can prevent the liquid in the rubber box body 271 from overflowing when unnecessary; the sealing performance of the liquid in the container is ensured; the inner wall of the hole plug 274 is connected with the inner wall of the rubber box body 271 through a pressing spring 273; the outer wall of the hole plug 274 is provided with a push rod 275, and the outer wall of the push rod 275 is provided with a ball in a movable connection mode; when the wiping sponge 26 is pressed, the jacking rod 275 is jacked through the wiping sponge 26, so that the hole plug 274 is separated from the liquid outlet on the rubber box body 271; the cleaning liquid in the rubber box 271 overflows to the surface of the wiping sponge 26; the surface of the lens 5 is convenient to clean by the wiping sponge 26; the pressing type liquid spraying module 27 is arranged to promote the cleaning effect of the wiping sponge 26 on the surface of the lens 5; so that the dirt which is difficult to clean on the lens 5 can be conveniently wiped off.
The inner fixing unit 4 comprises a rubber lantern ring 41, a fixing spring 42, a movable column 43 and an abutting block 44; the rubber lantern ring 41 is arranged on the inner wall of the lens barrel 1 in a clamping manner; guide holes are uniformly arranged in the rubber lantern ring 41, the guide holes are of a through structure, and the hole diameter in the middle of each guide hole is larger than the hole diameters on the two sides; the fixed spring 42 is arranged in the middle of the guide hole, a movable column 43 is arranged in the guide hole in a sliding fit mode, and the outer wall of the middle part of the movable column 43 penetrates through the fixed spring 42; a contact block 44 is arranged at the front end of the movable column 43, the contact block 44 is made of rubber, and the contact block 44 is attached to the inner wall of the lens 5; when the inner auxiliary sleeve 21 is installed in a thread fit manner with the camera, the installation end of the camera is matched with the movable column 43 to prop and extend the movable column 43, so that the contact block 44 is in contact with the inner wall of the lens 5 to fix the lens 5; and the provision of the contact block 44 in a rubber material to prevent the contact block 44 from crushing the lens 5 may provide good protection to the integrity of the lens 5.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A camera lens comprises a lens cone (1), an auxiliary unit (2), a sealing rubber ring (3), an internal fixing unit (4), a lens (5) and a magnetic ring (6); the method is characterized in that: the front end of the lens cone (1) is connected with an auxiliary unit (2) through a bearing ring, a sealing rubber ring (3) is arranged in the middle of the lens cone (1), a lens (5) is arranged in the lens cone (1) on the rear side of the sealing rubber ring (3), the internal fixing unit (4) is arranged in the lens cone (1), and the internal fixing unit (4) is matched with the auxiliary unit (2); a magnetic ring (6) is arranged on the outer wall of the lens cone (1); the inner wall of the rear end of the lens cone (1) is provided with a thread groove; wherein:
The auxiliary unit (2) comprises an inner auxiliary sleeve (21), an auxiliary spring (22), a sealing cover (23), a flap type snap ring (24), a magnetic block (25), a wiping sponge (26) and a pressing type liquid spraying module (27); cavities are uniformly formed in the outer wall of the front end of the inner auxiliary sleeve (21), an auxiliary spring (22) is arranged in each cavity, and the sealing cover (23) is arranged in the inner auxiliary sleeve (21) in a sliding fit mode; the outer wall of the circumference of the sealing cover (23) is uniformly provided with flap type snap rings (24) through pin shafts; the outer wall of lamella formula snap ring (24) is provided with magnetic block (25), and the inside wall that is located lamella formula snap ring (24) is provided with through sliding fit mode and cleans sponge (26), push type hydrojet module (27) intermittent type set up in arranging inside the sponge (26) of wiping of lamella formula snap ring (24) around the circumferencial direction.
2. A camera lens according to claim 1, characterized in that: the inner fixing unit (4) comprises a rubber lantern ring (41), a fixing spring (42), a movable column (43) and an abutting block (44); the rubber lantern ring (41) is arranged on the inner wall of the lens cone (1) in a clamping manner; guide holes are uniformly arranged in the rubber lantern ring (41), the guide holes are of a through structure, and the hole diameter in the middle of each guide hole is larger than the hole diameters on the two sides; the fixed spring (42) is arranged in the middle of the guide hole, a movable column (43) is arranged in the guide hole in a sliding fit mode, and the outer wall of the middle of the movable column (43) penetrates through the fixed spring (42); the front end that is located activity post (43) is provided with conflict piece (44), conflict piece (44) be the rubber material, just conflict piece (44) laminate mutually with the inner wall of lens (5).
3. A camera lens according to claim 1, characterized in that: the pressing type liquid spraying module (27) comprises a rubber box body (271), a sealing plug (272), a pressing spring (273), a hole plug (274) and a top rod (275); a liquid inlet hole is formed in the rubber box body (271), a sealing plug (272) is arranged on the liquid inlet hole, liquid outlets are uniformly formed in the side wall of the rubber box body (271), and balls are movably arranged at the liquid outlets; a hole plug (274) is arranged at the liquid outlet, and the inner wall of the hole plug (274) is connected with the inner wall of the rubber box body (271) through a pressing spring (273); and the outer wall of the hole plug (274) is provided with a push rod (275), and the outer wall of the push rod (275) is provided with a ball in a movable connection mode.
4. A camera lens according to claim 1, characterized in that: its concatenation of lamella formula snap ring (24) that evenly sets up is discoid, and the outer wall that is located lamella formula snap ring (24) is provided with joint strip.
5. A camera lens according to claim 1, characterized in that: the outer wall of the wiping sponge (26) is uniformly provided with grooves.
6. A camera lens according to claim 3, characterized in that: and a rubber pad seal is arranged at the contact position of the hole plug (274) and the inner wall of the rubber box body (271).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910847190.3A CN110572543B (en) | 2019-09-09 | 2019-09-09 | Camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910847190.3A CN110572543B (en) | 2019-09-09 | 2019-09-09 | Camera lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110572543A true CN110572543A (en) | 2019-12-13 |
| CN110572543B CN110572543B (en) | 2020-05-22 |
Family
ID=68778437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910847190.3A Active CN110572543B (en) | 2019-09-09 | 2019-09-09 | Camera lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110572543B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068385A (en) * | 2020-09-11 | 2020-12-11 | 广东省惠州七五六地质测绘工程公司 | Five-lens oblique photographing equipment free of cleaning |
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| CN107800938A (en) * | 2017-11-29 | 2018-03-13 | 武汉市哈哈便利科技有限公司 | A kind of CCD camera assembly with automatic cleaning function |
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| CN109862241A (en) * | 2019-01-15 | 2019-06-07 | 上海倪仕电气有限公司 | A kind of face snap high-definition camera with wiping function |
| CN209170501U (en) * | 2018-12-16 | 2019-07-26 | 允能科技产业有限公司 | A kind of construction monitor camera device with protective action |
-
2019
- 2019-09-09 CN CN201910847190.3A patent/CN110572543B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20170036650A1 (en) * | 2014-04-11 | 2017-02-09 | dlBOWLES INC. | Integrated automotive system, compact, low-profile nozzle assembly and compact fluidic circuit for cleaning a wide-angle image sensor's exterior surface |
| CN107800938A (en) * | 2017-11-29 | 2018-03-13 | 武汉市哈哈便利科技有限公司 | A kind of CCD camera assembly with automatic cleaning function |
| CN208033121U (en) * | 2018-01-16 | 2018-11-02 | 中山众旺光学有限公司 | A kind of camera lens cleaning equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068385A (en) * | 2020-09-11 | 2020-12-11 | 广东省惠州七五六地质测绘工程公司 | Five-lens oblique photographing equipment free of cleaning |
| CN112068385B (en) * | 2020-09-11 | 2022-02-18 | 广东省惠州七五六地质测绘工程公司 | Five-lens oblique photographing equipment free of cleaning |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110572543B (en) | 2020-05-22 |
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Effective date of registration: 20200429 Address after: 751600 Jiabao Industrial Park, Qingtongxia City, Wuzhong City, the Ningxia Hui Autonomous Region Applicant after: Ningxia Zhonghu Technology Co., Ltd Applicant after: Zhang Yuetuan Address before: 312000 Shaoxing University, 508 West Ring Road, Yue City, Zhejiang, Shaoxing Applicant before: Ni Yadan |
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