CN109342442B - Darkroom device for separating multiple-hole optical machine - Google Patents
Darkroom device for separating multiple-hole optical machine Download PDFInfo
- Publication number
- CN109342442B CN109342442B CN201811286473.7A CN201811286473A CN109342442B CN 109342442 B CN109342442 B CN 109342442B CN 201811286473 A CN201811286473 A CN 201811286473A CN 109342442 B CN109342442 B CN 109342442B
- Authority
- CN
- China
- Prior art keywords
- darkroom
- camera
- plate
- lifting
- fixed
- 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.)
- Active
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 11
- 238000005192 partition Methods 0.000 claims abstract description 33
- 230000001360 synchronised effect Effects 0.000 claims abstract description 8
- 210000000056 organ Anatomy 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
- G01N2021/8822—Dark field detection
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Studio Devices (AREA)
Abstract
The invention discloses a darkroom device for separating a multi-hole optical machine, which comprises a main fixed darkroom with an openable window, wherein the main fixed darkroom is divided into a plurality of sub-fixed darkrooms through a vertically arranged partition board, a movable darkroom which is communicated with each sub-fixed darkroom and can be lifted is arranged below each sub-fixed darkroom, a lifting camera is arranged in each sub-fixed darkroom, the movable darkroom realizes synchronous height adjustment through a first lifting module, and the camera realizes synchronous height adjustment through a second lifting module. The invention has simple structure and convenient use, and the combined structural design of the darkroom, the partition board and the back cover ensures that a plurality of cameras are integrally positioned in one darkroom, thereby avoiding the shielding of the accordion cover on the camera during the height position adjustment of the camera in the prior art, facilitating the adjustment of the camera, and simultaneously ensuring that the cameras can not mutually influence the exposure during the working by arranging the plurality of partition boards which are arranged at intervals in the darkroom, thereby improving the detection efficiency of the display panel.
Description
Technical Field
The invention relates to a darkroom device, belongs to the technical field of display panel detection, and particularly relates to a darkroom device for a separated multi-hole optical machine.
Background
Along with the development of technology, the manufacturing process level of the display panel is also higher, and quality detection is an important link for ensuring the quality of the display panel product in all links of the production and the manufacture of the display panel. At present, a camera (i.e. an optical machine module) for capturing the display panel and an organ cover for providing a photographing environment for the camera are arranged on special equipment for detecting the display panel, such as a common Demura tool, a Gamma tool, an AOI detection tool and the like, the camera and the organ cover are used, and the camera in the equipment realizes camera box sealing through the organ cover, as shown in Chinese patent No. 107826745A, the camera structure of each camera provided with one organ cover not only can cause the defects of small interval between the optical machine modules and inconvenient maintenance and debugging of core components such as the camera lens, but also can not observe the position of the camera because the camera is positioned in the organ cover in the descending process.
The invention discloses an automatic LCD screen detection machine based on machine vision in China patent CN104375293A, wherein the automatic LCD screen detection machine consists of a darkroom structure front panel, a back panel, a top panel and two side panels, a lifting module and an industrial camera are arranged in the automatic LCD screen detection machine, and the technical scheme has the problem that when a plurality of industrial cameras exist in the darkroom, as no separation exists among the industrial cameras, exposure is affected by mutual influence when the cameras take pictures.
Disclosure of Invention
The invention aims to provide a darkroom device for a multi-hole optical machine, which has the advantages of simple structure and convenient use, can not only realize shading of a camera, but also avoid the shading of the camera by an original organ cover during position debugging of the camera, and is convenient for adjusting the position of the camera.
In order to solve the technical problems, the invention adopts the device for separating the darkroom of the multi-hole optical machine, which comprises a main fixed darkroom with an openable window, wherein the main fixed darkroom is separated into a plurality of partition fixed darkrooms by a partition plate which is vertically arranged, a movable darkroom which is communicated with each partition fixed darkroom and can be lifted is arranged below each partition fixed darkroom, a lifting camera is arranged in each partition fixed darkroom, the movable darkroom realizes synchronous height adjustment through a first lifting module, and the camera realizes synchronous height adjustment through a second lifting module.
In a preferred embodiment of the present invention, a slot for installing the partition is provided in the main fixing dark room.
In a preferred embodiment of the invention, an organ plate for sealing dust protection is arranged between two adjacent partition plates, and the organ plate is connected with the second lifting module.
In a preferred embodiment of the present invention, the main fixed darkroom comprises a rectangular parallelepiped outer frame, on which a top plate, a side plate, a rear back plate and a front door plate are mounted, and a plurality of partitions arranged in parallel with the side plate are provided inside the outer frame.
In a preferred embodiment of the invention, a baffle connecting frame for installing the baffle is arranged in the outer frame, the baffle connecting frame comprises two supporting beams which are arranged in parallel and a plurality of connecting frames which are arranged in parallel, each connecting frame is in a channel shape and is provided with a slot for installing the baffle, and the supporting beams are vertically and fixedly connected with the connecting frames.
In a preferred embodiment of the present invention, the connection frames are fixedly connected to the support beam at equal intervals.
In a preferred embodiment of the present invention, the first lifting module includes a lifting transverse plate, a guide rail sliding block structure and a screw driving structure, the lifting transverse plate is arranged in parallel with the back plate, the guide rail sliding block structure and the screw driving structure are arranged between the lifting transverse plate and the back plate, and an organ plate and a camera are connected to the lifting transverse plate at intervals.
In a preferred embodiment of the invention, a plurality of lockable sliding plates are connected to the lifting transverse plate in a sliding fit manner, and each sliding plate is provided with the camera.
In a preferred embodiment of the present invention, the second lifting module includes a guide rail slider structure and a screw driving structure, wherein the movable end of the guide rail slider structure and the movable end of the screw driving structure are fixedly connected with the movable darkroom.
In a preferred embodiment of the invention, the mobile camera comprises a lower organ cover and a lower cover. .
In a preferred embodiment of the invention, the darkroom is provided with support frames on both sides.
The beneficial effects of the invention are as follows: the invention has simple structure and convenient use, and the combined structure design of the darkroom, the partition plates and the organ plates ensures that a plurality of cameras are integrally positioned in one darkroom, thereby avoiding the shielding of the organ cover and facilitating the adjustment of the cameras when the height position of the cameras is adjusted in the prior art; furthermore, the camera is designed into the structure of the cuboid outer frame, and the structure is matched with the top plate, the side plates, the back plate and the front door plate, so that the camera is convenient to install and maintain quickly, and the height position of the camera can be adjusted quickly and intuitively when the front door plate is opened; furthermore, the baffle connecting frame is added on the outer frame, so that the quick installation and the disassembly of the baffle are convenient, and the installation and the maintenance of the lifting module and the camera are convenient; furthermore, the lifting module adopts the lifting transverse plate, the guide rail sliding block structure and the screw rod driving structure, so that the height position of the camera can be conveniently and accurately adjusted; furthermore, the sliding plate is arranged on the lifting transverse plate, so that the adjustment of the transverse position of the camera is realized, and the interference between organ covers during the adjustment of the transverse positions of two adjacent cameras in the prior art is avoided; furthermore, the accuracy of camera position adjustment is further improved through the camera fine adjustment module between the sliding plate and the camera; furthermore, the lifting enclosure is designed below the darkroom, so that the light shielding performance of the darkroom is improved.
Drawings
FIG. 1 is an isometric view of a partitioned multi-cavity opto-mechanical darkroom assembly according to an embodiment of the present invention;
FIG. 2 is a front view of a camera device for a partitioned multi-cavity optical engine according to an embodiment of the present invention;
FIG. 3 is a side view of a partitioned multi-cavity opto-mechanical darkroom arrangement according to an embodiment of the present invention;
FIG. 4 is a top view of a separated multi-cavity opto-mechanical darkroom assembly according to an embodiment of the present invention;
FIG. 5 is a schematic view of an outer frame of a camera darkroom device for separating multiple cavities according to an embodiment of the present invention;
FIG. 6 is an enlarged view of a portion of an outer frame A of a device for separating multiple cavities of a camera according to an embodiment of the present invention;
In the figure: a-a main fixed darkroom; b-fixing a darkroom; c-movable darkroom; 1-a top plate; 2-side plates; 3-a back plate; 4-front door panel; 5-a separator; 6-lifting the enclosure; 7-organ plates; 8-lifting modules; 9-camera; 10-an outer frame; 11-a connecting frame; 12-supporting frames; 6-1-lower organ cover; 6-2-lower cover; 6-3-a guide rail slide block structure; 8-1-lifting transverse plates; 8-2-a guide rail slide block structure; 8-3-lead screw drive structure; 8-4-skateboards; 11-1-supporting beams; 11-2-connecting frames; 11-21-slots.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention discloses a camera device for separating multiple-hole optical machines, which comprises a main fixed camera A with an openable window, wherein the main fixed camera A is divided into multiple-partition fixed camera B through a partition board 5 which is vertically arranged, a movable camera C which is communicated with the sub fixed camera B and can be lifted is arranged below each sub fixed camera B, a lifting camera 9 is arranged in each sub fixed camera B, the movable camera C realizes synchronous height adjustment through a first lifting module 8, and the camera 9 realizes synchronous height adjustment through a second lifting module 13. The main fixed darkroom A is internally provided with the slots 11-21 for installing the partition board 5, thereby facilitating the installation and the disassembly of the partition board 5; an organ plate 7 for sealing and dust prevention is arranged between two adjacent partition plates 5, and the organ plate 7 is connected with a second lifting module 13.
In the specific embodiment shown in the drawings of the specification of the invention, a lifting module 8 is arranged in a darkroom, a camera 9 is connected to the movable end of the lifting module 8, the darkroom comprises a top plate 1, a side plate 2, a back plate 3 and a front door plate 4, a lifting enclosure 6 (the lifting enclosure 6 is a movable darkroom C) is arranged at the bottom of the darkroom, a plurality of partition plates 5 which are arranged in parallel with the side plate 2 are arranged in the darkroom, the partition plates 5 are arranged at equal intervals, a camera 9 and an organ plate 7 are arranged between two adjacent partition plates 5, the organ plate 7 is arranged in parallel with the back plate 3, and the organ plate 7 is connected with the movable end of the lifting module 8.
Preferably, the darkroom comprises an outer frame 10 for installing a top plate 1, side plates 2, a back plate 3 and a front door plate 4, wherein the outer frame 10 is cuboid, the top of the outer frame 10 is provided with the top plate 1, two sides of the outer frame 10 are respectively provided with the side plates 2, the back of the outer frame 10 is provided with the back plate 3, the front of the outer frame 10 is hinged with a pair of front door plates 4, the front door plates 4 can be opened and closed, the bottom of the outer frame 10 is provided with a lifting enclosure 6, and a partition plate connecting frame 11 for installing a partition plate 5 is arranged in the outer frame 10.
Preferably, the partition board connecting frame 11 comprises two parallel supporting beams 11-1 and a plurality of parallel connecting frames 11-2, each connecting frame 11-2 is in a channel steel shape and is provided with a slot 11-21 for installing the partition board 5, the supporting beams 11-1 are vertically fixedly connected with the connecting frames 11-2, the connecting frames 11-2 are formed by splicing two parallel horizontal longitudinal beams and one vertical longitudinal beam, and the horizontal longitudinal beams, the vertical longitudinal beams and the supporting beams 11-1 are perpendicular to each other.
Preferably, the connecting frames 11-2 are fixedly connected to the supporting beam 11-1 at equal intervals.
Preferably, the lifting module 8 comprises a lifting transverse plate 8-1, a guide rail sliding block structure 8-2 and a screw driving structure 8-3, wherein the lifting transverse plate 8-1 is arranged in parallel with the back plate 3, the guide rail sliding block structure 8-2 and the screw driving structure 8-3 are arranged between the lifting transverse plate 8-1 and the back plate 3, and the lifting transverse plate 8-1 is connected with an organ plate 7 and a camera 9 at intervals.
Preferably, a plurality of lockable sliding plates 8-4 are connected to the lifting transverse plate 8-1 in a sliding fit manner, and a camera 9 is mounted on each sliding plate 8-4.
Preferably, a camera trimming module is provided between the camera 9 and the slide plate 8-4, and the camera trimming module can adjust the position of the camera 9 along the X-axis, the Y-axis, and the θ -axis.
Preferably, the lifting enclosure 6 comprises a lower organ cover 6-1, a lower cover 6-2, a guide rail sliding block structure 6-3 and a screw driving structure, wherein one end of the lower organ cover 6-1 is fixedly connected with the bottom end of the darkroom, the other end of the lower organ cover is fixedly connected with the lower cover 6-2, and the guide rail sliding block structure 6-3 and the screw driving structure are arranged between the lower cover 6-2 and the rear backboard 3.
Preferably, the organ plate 7 is an organ plate, the width of which corresponds to the spacing between two adjacent partition plates 5.
Preferably, the camera is provided with a support frame 12 on both sides.
Note that the shape of the main fixed darkroom a of the present invention is not limited to a rectangular parallelepiped shape, but may be a cylindrical shape or the like.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (1)
1. A separate many cave optical machine darkroom device which characterized in that: the camera comprises a main fixed darkroom (A) with an openable window, wherein the main fixed darkroom (A) is divided into a plurality of sub-fixed darkrooms (B) through a vertically arranged partition board (5), a movable darkroom (C) which is communicated with each sub-fixed darkroom (B) and can be lifted is arranged below each sub-fixed darkroom, a lifting camera (9) is arranged in each sub-fixed darkroom (B), the movable darkroom (C) realizes synchronous height adjustment through a second lifting module (13), and the camera (9) realizes synchronous height adjustment through a first lifting module (8); the main fixed darkroom (A) is internally provided with slots (11-21) for installing the partition board (5); an organ plate (7) for sealing and preventing dust is arranged between two adjacent partition plates (5), and the organ plate (7) is connected with a first lifting module (8); the main fixed darkroom (A) comprises a cuboid outer frame (10), a top plate (1), side plates (2), a back plate (3) and a front door plate (4) are arranged on the outer frame (10), and a plurality of partition plates (5) which are arranged in parallel with the side plates (2) are arranged inside the outer frame (10); a partition board connecting frame (11) for installing the partition boards (5) is arranged in the outer frame (10), the partition board connecting frame (11) comprises two support beams (11-1) which are arranged in parallel and a plurality of connecting frames (11-2) which are arranged in parallel, each connecting frame (11-2) is in a channel shape, a slot (11-21) for installing the partition boards (5) is formed in each connecting frame, and the support beams (11-1) are vertically fixedly connected with the connecting frames (11-2); the connecting frames (11-2) are fixedly connected to the supporting beam (11-1) at equal intervals; the first lifting module (8) comprises a lifting transverse plate (8-1), a guide rail sliding block structure (8-2) and a screw driving structure (8-3), wherein the lifting transverse plate (8-1) and the rear panel (3) are arranged in parallel, the guide rail sliding block structure (8-2) and the screw driving structure (8-3) are arranged between the lifting transverse plate (8-1) and the rear panel (3), and an organ plate (7) and a camera (9) are connected to the lifting transverse plate (8-1) at intervals; a plurality of lockable sliding plates (8-4) are connected to the lifting transverse plate (8-1) in a sliding fit manner, and each sliding plate (8-4) is provided with a camera (9); the second lifting module (13) comprises a guide rail sliding block structure and a screw driving structure, and the movable end of the guide rail sliding block structure and the movable end of the screw driving structure are fixedly connected with the movable darkroom (C); the movable darkroom (C) comprises a lower organ cover (6-1) and a lower cover (6-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811286473.7A CN109342442B (en) | 2018-10-31 | 2018-10-31 | Darkroom device for separating multiple-hole optical machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811286473.7A CN109342442B (en) | 2018-10-31 | 2018-10-31 | Darkroom device for separating multiple-hole optical machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109342442A CN109342442A (en) | 2019-02-15 |
| CN109342442B true CN109342442B (en) | 2024-06-04 |
Family
ID=65313044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811286473.7A Active CN109342442B (en) | 2018-10-31 | 2018-10-31 | Darkroom device for separating multiple-hole optical machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109342442B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202421695U (en) * | 2011-12-30 | 2012-09-05 | 浙江省农业科学院 | Camera bellows for plant leaf surface image information acquisition |
| CN103604584A (en) * | 2013-12-03 | 2014-02-26 | 吕大明 | LED illumination light source comprehensive measurement instrument |
| CN203587524U (en) * | 2013-11-27 | 2014-05-07 | 云南玉溪水松纸厂 | Appearance detection device for base paper of tipping paper |
| CN205569527U (en) * | 2016-03-28 | 2016-09-14 | 西安市第四医院 | Cell light injury device |
| CN106770341A (en) * | 2016-12-28 | 2017-05-31 | 昆山精讯电子技术有限公司 | A kind of automatic optical detectors of double-decker AOI |
| KR20170069178A (en) * | 2017-05-13 | 2017-06-20 | 주식회사 에이피에스 | Multiple optics vision inspection system |
| CN206321576U (en) * | 2016-11-29 | 2017-07-11 | 研祥智能科技股份有限公司 | Products detection system based on machine vision |
| CN206573463U (en) * | 2016-12-30 | 2017-10-20 | 中建材浚鑫科技股份有限公司 | A kind of laminates appearance test device |
| CN107826745A (en) * | 2017-12-01 | 2018-03-23 | 昆山精讯电子技术有限公司 | A kind of panel detection device |
| CN207557139U (en) * | 2016-12-15 | 2018-06-29 | 苏州三星显示有限公司 | Liquid crystal display detection device |
| CN209673665U (en) * | 2018-10-31 | 2019-11-22 | 武汉精立电子技术有限公司 | A kind of separation more cave ray machines darkroom device |
-
2018
- 2018-10-31 CN CN201811286473.7A patent/CN109342442B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202421695U (en) * | 2011-12-30 | 2012-09-05 | 浙江省农业科学院 | Camera bellows for plant leaf surface image information acquisition |
| CN203587524U (en) * | 2013-11-27 | 2014-05-07 | 云南玉溪水松纸厂 | Appearance detection device for base paper of tipping paper |
| CN103604584A (en) * | 2013-12-03 | 2014-02-26 | 吕大明 | LED illumination light source comprehensive measurement instrument |
| CN205569527U (en) * | 2016-03-28 | 2016-09-14 | 西安市第四医院 | Cell light injury device |
| CN206321576U (en) * | 2016-11-29 | 2017-07-11 | 研祥智能科技股份有限公司 | Products detection system based on machine vision |
| CN207557139U (en) * | 2016-12-15 | 2018-06-29 | 苏州三星显示有限公司 | Liquid crystal display detection device |
| CN106770341A (en) * | 2016-12-28 | 2017-05-31 | 昆山精讯电子技术有限公司 | A kind of automatic optical detectors of double-decker AOI |
| CN206573463U (en) * | 2016-12-30 | 2017-10-20 | 中建材浚鑫科技股份有限公司 | A kind of laminates appearance test device |
| KR20170069178A (en) * | 2017-05-13 | 2017-06-20 | 주식회사 에이피에스 | Multiple optics vision inspection system |
| CN107826745A (en) * | 2017-12-01 | 2018-03-23 | 昆山精讯电子技术有限公司 | A kind of panel detection device |
| CN209673665U (en) * | 2018-10-31 | 2019-11-22 | 武汉精立电子技术有限公司 | A kind of separation more cave ray machines darkroom device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109342442A (en) | 2019-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109342442B (en) | Darkroom device for separating multiple-hole optical machine | |
| CN209673665U (en) | A kind of separation more cave ray machines darkroom device | |
| CN210036621U (en) | Visual inspection equipment based on multilayer light source framework | |
| CN113380078A (en) | Projection equipment convenient for storage and placement for computer major teaching | |
| CN217935808U (en) | Color plate detection device for camera | |
| CN212660279U (en) | Dustproof device for switch | |
| CN112068657A (en) | Assembling frame for mounting computer | |
| CN210099438U (en) | Automatic screw locking device for television assembly | |
| CN213637884U (en) | Automatic detection equipment for mobile phone screen | |
| CN113903275A (en) | High-sensitivity display device for outdoor splicing and connecting | |
| CN210537166U (en) | Network rack of quick installation | |
| CN109862730B (en) | Data terminal acquisition device for campus intelligent community management and installation method thereof | |
| CN112811121A (en) | Visual inspection device | |
| CN218584676U (en) | Optical detection device for diaphragm | |
| CN215035931U (en) | Remote maintenance diagnosis device for numerical control machine tool | |
| CN221765908U (en) | Industrial camera cooling protection device | |
| CN219109408U (en) | Shading device for eye detection equipment and eye detection system | |
| CN217083653U (en) | Automatic objective table mechanism for image machine | |
| CN216930211U (en) | Switch fixing plate | |
| CN215011292U (en) | Power supply module of electric power instrument | |
| CN221056816U (en) | Dustproof projector | |
| CN220252515U (en) | Combined chassis shell | |
| CN213123722U (en) | Intelligent voice LED screen | |
| CN221175692U (en) | LED electronic display screen module structure | |
| CN215698629U (en) | Protection device of slow-moving wire machine tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |