CN112333365A - Bidirectional camera module with self-cleaning function - Google Patents
Bidirectional camera module with self-cleaning function Download PDFInfo
- Publication number
- CN112333365A CN112333365A CN202011225967.1A CN202011225967A CN112333365A CN 112333365 A CN112333365 A CN 112333365A CN 202011225967 A CN202011225967 A CN 202011225967A CN 112333365 A CN112333365 A CN 112333365A
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- camera
- baffle
- wall
- shell
- module
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- 238000004140 cleaning Methods 0.000 title claims abstract description 27
- 230000002457 bidirectional effect Effects 0.000 title abstract description 12
- 238000005192 partition Methods 0.000 claims abstract description 6
- 238000012856 packing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 206010047571 Visual impairment Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- 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
-
- 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
- B08B1/12—Brushes
-
- 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
- B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
-
- 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
- H04N23/51—Housings
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Accessories Of Cameras (AREA)
- Camera Bodies And Camera Details Or Accessories (AREA)
- Studio Devices (AREA)
Abstract
The invention discloses a bidirectional camera module with a self-cleaning function, which relates to the technical field of camera modules and comprises a front camera and a soft brush, wherein the front camera is fixedly connected with a rear camera through a partition plate, the partition plate is fixedly connected with a rotating shaft, the outer wall of the rotating shaft is provided with a triangular baffle, the outer end of the triangular baffle is movably connected with the left end of a rotating rod, the right end of the rotating rod is rotatably connected with the inner wall of a rotating shell, and the upper end of the rotating rod is provided with a baffle I. This two-way camera module with self-cleaning function through constituting coaxial two-way camera and rotating for soft brush can clean the rearmounted camera that will use and carry out cleaning operation to leading camera behind when leading camera rotates into module shell, makes people need not dismantle the camera and can continue to use when cleaning the camera to the cleanness of camera, improves people's experience.
Description
Technical Field
The invention relates to the technical field of camera modules, in particular to a bidirectional camera module with a self-cleaning function.
Background
The camera is also called a computer camera, a computer eye, an electronic eye and the like, is a video input device, and is widely applied to aspects such as video conferences, telemedicine, real-time monitoring and the like. Common people can also have image and voice conversations and communications with each other through the camera in the network. In addition, people can also use the method for various popular digital images, video and audio processing and the like. The camera generally has the basic functions of video shooting/transmission, static image capture and the like, and after images are collected through a lens, the images are processed and converted into digital signals which can be identified by a computer through a photosensitive component circuit and a control component in the camera, and then the digital signals are input into the computer through a parallel port or a USB connection and then are restored through software.
Among the prior art, all install the camera on the panel computer that people often used, the camera is stained with dust or other impurity easily and makes the camera form images fuzzy influence image processing and judges after long-time the use for people need pull down the camera and clear up, and can not continue to use at clearance in-process camera, and is very inconvenient.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a bidirectional camera module with a self-cleaning function, which solves the problems mentioned in the background technology.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a bidirectional camera module with a self-cleaning function comprises a front camera and a soft brush, wherein the front camera is fixedly connected with a rear camera through a partition plate, the partition plate is fixedly connected with a rotating shaft, a triangular baffle is arranged on the outer wall of the rotating shaft, the outer end of the triangular baffle is movably connected with the left end of the rotating rod, the right end of the rotating rod is rotatably connected with the inner wall of a rotating shell, a baffle is arranged at the upper end of the rotating rod, the right end of the baffle is fixedly connected with the inner wall of the rotating shell, the lower end of the rotating rod is fixedly connected with the upper end of a spring, and the lower end of the spring is fixedly connected with the inner wall of the rotating;
the soft brush sets up in arc slider upper end outer wall, arc slider lower extreme outer wall is provided with the arc rack, arc slider and fixed arc slide rail sliding connection, both ends and module shell inner wall fixed connection about fixed arc slide rail, arc rack lower extreme and the meshing of a gear upper end, a gear left end and the meshing of No. two gear right-hand members, No. two gears pass through the belt and rotate the shell and rotate and be connected.
Preferably, the outer wall of the rotating shell is provided with an annular rack, the right end of the annular rack is meshed with the left end of the rectangular rack, the right end of the rectangular rack is fixedly connected with the left end of a first switch, the upper end of the first switch is fixedly connected with the lower end of a second spring, the upper end of the second spring is fixedly connected with the lower end of a first fixed plate, and the right end of the first switch is slidably connected with the right end of the module shell.
Preferably, the right end of the rectangular rack is connected with the left end of a first limiting rod in a sliding mode, and the bottom end of the first limiting rod is fixedly connected with the left upper end of the supporting plate.
Preferably, the front camera is rotatably connected with the module shell through a sliding chute, and a protection plate with the same width as the front camera is arranged in the sliding chute.
Preferably, the protection shield right-hand member passes through the torsional spring and is connected with the fixed block rotation, fixed block and spout inner wall fixed connection, the protection shield left end is provided with circular rubber packing pad.
Preferably, arc rack right side lower extreme and No. two baffle upper ends swing joint, No. two baffle bottom and No. two switch left end fixed connection, No. two switch right-hand members and module shell right-hand member sliding connection.
Preferably, No. two switch lower extremes and No. three spring upper ends fixed connection, No. three spring lower extreme and module shell bottom inner wall fixed connection.
Preferably, a square groove is formed in the second baffle, the right end of the square groove is movably connected with the left end of the third baffle, the right end of the third baffle is fixedly connected with the left end of the fourth spring, and the right end of the fourth spring is fixedly connected with the inner wall of the right end of the module shell.
Preferably, No. three baffle lower extremes and No. two gag lever post upper ends sliding connection, No. two gag lever post right-hand members and module shell right-hand member inner wall fixed connection, No. three baffle upper ends and No. three switch left and right ends fixed connection, No. three switch right-hand members and module shell right-hand member sliding connection.
(III) advantageous effects
The invention provides a bidirectional camera module with a self-cleaning function. The method has the following beneficial effects:
(1) this two-way camera module with self-cleaning function, constitute coaxial two-way camera through being provided with leading camera and rearmounted camera, make pressing through a switch can drive coaxial two-way camera through the axis of rotation and rotate, make soft brush can clean the rearmounted camera that will use and carry out cleaning operation to leading camera after leading camera rotates into the module shell, make people need not dismantle the camera and can continue to use the camera when cleaning the camera to the cleanness of camera, when needing to be clean leading camera, use rearmounted camera, when needing to be clean leading camera, use leading camera, improve people's experience.
(2) This two-way camera module with self-cleaning function, through being provided with the rotation shell, the dwang, the triangle-shaped baffle, a baffle and a spring make can let a switch drive axis of rotation and coaxial two-way camera rotate when pressing down, and can not drive the axis of rotation when upwards kick-backing a switch and rotate, can play a fixed action to a switch through being provided with No. two baffles and No. two switches, prevent that the maloperation makes a switch remove.
Drawings
FIG. 1 is a schematic view of the overall front view structure of the present invention;
FIG. 2 is an enlarged view of the structure A of the present invention;
FIG. 3 is an enlarged view of the structure B of the present invention;
FIG. 4 is a schematic view of a front camera structure according to the present invention;
FIG. 5 is an enlarged view of the structure C of the present invention;
FIG. 6 is an enlarged view of the structure D of the present invention;
FIG. 7 is a schematic view of the torsion spring of the present invention;
FIG. 8 is an enlarged view of the structure E of the present invention.
In the figure: 1 front camera, 2 baffle, 3 rear camera, 4 axis of rotation, 5 triangle-shaped baffle, 6 dwang, 7 rotate the shell, 8 baffle, 9 spring, 10 annular rack, 11 rectangle rack, 12 switch, 13 module shell, 14 gag lever post, 15 backup pads, 16 No. two springs, 17 No. one fixed plate, 18 spout, 19 protection shield, 20 fixed block, 21 torsional spring, 22 circular rubber sealing gasket, 23 belt, 24 No. two gears, 25 a gear, 26 arc rack, 27 arc slider, 28 soft brush, 29 fixed arc slide rail, 30 No. two baffles, 31 square groove, 32 No. two switches, 33 No. three springs, 34 No. three baffles, 35 No. four springs, 36 No. two gag lever posts, 37 No. three switches.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, the present invention provides a technical solution: a bidirectional camera module with a self-cleaning function comprises a front camera 1 and a soft brush 28, wherein the upper end of a baffle plate 2 at the bottom end of the front camera 1 is fixedly connected, the lower end of the baffle plate 2 is fixedly connected with the upper end of a rear camera 3, the baffle plate 2 is fixedly connected with a rotating shaft 4, the coaxial bidirectional camera is formed by the front camera 1, the baffle plate 2, the rear camera 3 and the rotating shaft 4, the rotating shaft 4 is rotatably connected with the inner wall of a mold shell 13, the outer wall of the rotating shaft 4 is provided with a triangular baffle plate 5, the triangular baffle plate 5 is a right-angled triangular baffle plate, the outer end of the triangular baffle plate 5 is movably connected with the left end of a rotating rod 6, the right end of the rotating rod 6 is rotatably connected with the inner wall of a rotating shell 7, the upper end of the rotating rod 6 is movably connected with the lower end of a baffle plate 8, the right end, the lower end of the first spring 9 is fixedly connected with the inner wall of the rotating shell 7, the rotating rod 6, the triangular baffle 5, the first baffle 8 and the first spring 9 are arranged, so that the first switch 12 can drive the rotating shaft 4 and the coaxial bidirectional camera to rotate when pressed downwards, and the first switch 12 cannot drive the rotating shaft 4 to rotate when rebounded upwards;
the soft brush 28 is arranged on the outer wall of the upper end of the arc-shaped slide block 27, the upper end of the soft brush 28 is movably connected with the lower end of the rear camera 3, the lower end of the arc-shaped slide block 27 is fixedly connected with the inner end of the arc-shaped rack 26, the arc-shaped slide block 27 is slidably connected with the fixed arc-shaped slide rail 29, the left end and the right end of the fixed arc-shaped slide rail 29 are fixedly connected with the inner wall of the module shell 13, the outer end of the arc-shaped rack 26 is meshed with the upper end of the first gear 25, the left end of the first gear 25 is meshed with the right end of the second gear 24, the first gear 25 and the second gear 24 are both rotatably connected with the inner wall of the die shell 13, the second gear 24 is rotatably connected with the rotating shell 7 through a belt 23, the outer wall of the rotating shell 7 is provided with an annular rack 10, the right end of, the upper end of a second spring 16 is fixedly connected with the lower end of a first fixing plate 17, the right end of the first fixing plate 17 is fixedly connected with the inner wall of the right end of a die shell 13, the right end of a first switch 12 is slidably connected with the right end of the die shell 13, the right end of a rectangular rack 11 is slidably connected with the left end of a first limiting rod 14, the bottom end of the first limiting rod 14 is fixedly connected with the left upper end of a supporting plate 15, and a coaxial bidirectional camera is formed to rotate, so that a soft brush 28 can clean a rear camera 3 to be used and clean a front camera 1 after the front camera 1 rotates into the die shell 13, and people can clean the camera without detaching the camera and continue to use the camera while cleaning the camera;
the front camera 1 is rotatably connected with the module shell 13 through a chute 18, a protection plate 19 with the same width as the front camera 1 is arranged in the chute 18, the right end of the protection plate 19 is rotatably connected with a fixed block 20 through a torsion spring 21, the fixed block 20 is fixedly connected with the inner wall of the chute 18, the left end of the protection plate 19 is provided with a circular rubber sealing gasket 22, the protection plate 19, the front camera 1, the soft hairbrush, the rotating shell 7 and the first switch 12 are positioned on different planes, and a protection effect can be achieved by arranging the protection plate 19;
the right lower end of the arc rack 26 is movably connected with the upper end of a second baffle 30, the bottom end of the second baffle 30 is fixedly connected with the left end of a second switch 32, the right end of the second switch 32 is slidably connected with the right end of a module shell 13, the lower end of the second switch 32 is fixedly connected with the upper end of a third spring 33, the lower end of the third spring 33 is fixedly connected with the inner wall of the bottom end of the module shell 13, a square groove 31 is arranged on the second baffle 30, the right end of the square groove 31 is movably connected with the left end of the third baffle 34, the right end of the third baffle 34 is fixedly connected with the left end of a fourth spring 35, the right end of the fourth spring 35 is fixedly connected with the inner wall of the right end of the module shell 13, the lower end of the third baffle 34 is slidably connected with the upper end of a second limiting rod 36, the right end of the second limiting rod 36 is fixedly connected with the inner wall of the right end of the module, the first switch 12 can be fixed by the second baffle 30 and the second switch 32, and the first switch 12 can be prevented from moving due to misoperation.
When the multifunctional cleaning device works (or is used), when the front camera 1 needs cleaning, the second switch 32 is pressed downwards to drive the second baffle 30 to move downwards to be separated from the right lower end of the arc-shaped rack 26, meanwhile, the third baffle 34 moves leftwards due to the elastic force of the fourth spring 35 and is clamped with the right end of the square groove 31, then the first switch 12 can be pressed downwards to drive the rectangular rack 11 to slide downwards along the first limiting rod 14, so that the annular rack 10 and the rotating shell 7 can be driven to rotate clockwise, then the right-angle side of the triangular baffle 5 is pushed to rotate clockwise through the left end of the rotating rod 6, the rotating rod 6 cannot rotate anticlockwise due to the limitation of the first baffle 8, so that the rotating rod 6 can drive the rotating shaft 4 to rotate clockwise, and further can drive the front camera 1 and the rear camera 3 to rotate clockwise, and when the front camera 1 rotates, the right side 19 of the protection plate can be pressed to rotate downwards, the rear camera 3 is cleaned for the second time by the soft brush 28, and the clockwise rotation of the rotating shell 7 drives the second gear 24 to rotate clockwise by the belt 23, and further drives the first gear 25 to rotate counterclockwise, and drives the arc slide block 27 to slide counterclockwise along the fixed arc slide rail 29 by the arc rack 26, so that the soft brush 28 can move for a distance with the rear camera 3, when the rear camera 3 rotates out of the mold shell 13 for use, the front camera 1 rotates to the initial position of the front and rear cameras 3, and then the first switch 12 is released, so that the first switch moves upward due to the pulling force of the second spring 16, and further the rotating shell 7 can be driven to rotate counterclockwise by the rectangular rack 11, and at this time, the rotating rod 6 is driven to rotate counterclockwise by the rotating shell 7 and does not push the triangular baffle 5 to move, so that the rotating shaft 4 can not rotate in the upward movement process of the first switch 12, and further the belt 23, the second gear 24 and the first gear 25 can drive the arc-shaped rack 26 to rotate clockwise, and further the soft brush 28 can be driven to rotate clockwise, so that the rotated front camera 1 can be cleaned once, then when the rear camera 3 needs to be cleaned, the operations are repeated, the front camera 1 which is about to be rotated out for use can be cleaned for the second time by pressing the first switch 12 downwards, the rear camera 3 can be cleaned once in the upward rebounding process of the first switch 12, when the camera does not need to be cleaned, the third switch 37 is pulled rightwards to separate the left end of the third baffle 34 from the right end of the square groove 31, so that the second baffle 30 can move upwards due to the elastic force and clamp with the right lower end of the arc-shaped rack 26, further, the position of the first switch 12 is fixed, and in conclusion, by constituting the coaxial bidirectional camera and rotating, the soft brush 28 can clean the rear camera 3 to be used and perform cleaning operation on the front camera 1 after the front camera 1 rotates into the module housing 13, so that people can continue to use the camera while cleaning the camera without detaching the camera.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a two-way camera module with self-cleaning function, includes leading camera (1) and soft brush (28), its characterized in that: the front camera (1) is fixedly connected with the rear camera (3) through a partition plate (2), the partition plate (2) is fixedly connected with a rotating shaft (4), a triangular baffle (5) is arranged on the outer wall of the rotating shaft (4), the outer end of the triangular baffle (5) is movably connected with the left end of a rotating rod (6), the right end of the rotating rod (6) is rotatably connected with the inner wall of a rotating shell (7), a baffle (8) is arranged at the upper end of the rotating rod (6), the right end of the baffle (8) is fixedly connected with the inner wall of the rotating shell (7), the lower end of the rotating rod (6) is fixedly connected with the upper end of a spring (9), and the lower end of the spring (9) is fixedly connected with the inner wall of the rotating shell (7);
soft brush (28) set up in arc slider (27) upper end outer wall, arc slider (27) lower extreme outer wall is provided with arc rack (26), arc slider (27) and fixed arc slide rail (29) sliding connection, both ends and module shell (13) inner wall fixed connection about fixed arc slide rail (29), arc rack (26) lower extreme and gear (25) upper end meshing, gear (25) left end and No. two gear (24) right-hand members meshing, No. two gear (24) are connected with rotation shell (7) rotation through belt (23).
2. The bi-directional camera module with self-cleaning function as recited in claim 1, wherein: rotate shell (7) outer wall and be provided with annular rack (10), annular rack (10) right-hand member and meshing of rectangle rack (11) left end, rectangle rack (11) right-hand member and switch (12) left end fixed connection, switch (12) upper end and No. two spring (16) lower extreme fixed connection, No. two spring (16) upper end and fixed plate (17) lower extreme fixed connection, switch (12) right-hand member and module shell (13) right-hand member sliding connection.
3. The bi-directional camera module with self-cleaning function as recited in claim 2, wherein: the right end of the rectangular rack (11) is connected with the left end of a first limiting rod (14) in a sliding mode, and the bottom end of the first limiting rod (14) is fixedly connected with the upper left end of a supporting plate (15).
4. The bi-directional camera module with self-cleaning function as recited in claim 1, wherein: leading camera (1) and module shell (13) are connected through spout (18) rotation, be provided with in spout (18) with leading camera (1) with the same protection shield (19) of width.
5. The bi-directional camera module with self-cleaning function as recited in claim 4, wherein: protection shield (19) right-hand member passes through torsional spring (21) and is connected with fixed block (20) rotation, fixed block (20) and spout (18) inner wall fixed connection, protection shield (19) left end is provided with circular rubber packing pad (22).
6. The bi-directional camera module with self-cleaning function as recited in claim 1, wherein: arc rack (26) right side lower extreme and No. two baffle (30) upper end swing joint, No. two baffle (30) bottom and No. two switch (32) left end fixed connection, No. two switch (32) right-hand member and module shell (13) right-hand member sliding connection.
7. The bi-directional camera module of claim 6, wherein: no. two switch (32) lower extreme and No. three spring (33) upper end fixed connection, No. three spring (33) lower extreme and module shell (13) bottom inner wall fixed connection.
8. The bi-directional camera module of claim 6, wherein: the novel module is characterized in that a square groove (31) is formed in the second baffle (30), the right end of the square groove (31) is movably connected with the left end of the third baffle (34), the right end of the third baffle (34) is fixedly connected with the left end of the fourth spring (35), and the right end of the fourth spring (35) is fixedly connected with the inner wall of the right end of the module shell (13).
9. The bi-directional camera module with self-cleaning function as recited in claim 8, wherein: no. three baffle (34) lower extreme and No. two gag lever post (36) upper end sliding connection, No. two gag lever post (36) right-hand members and module shell (13) right-hand member inner wall fixed connection, No. three baffle (34) upper end and No. three switch (37) left side lower extreme fixed connection, No. three switch (37) right-hand member and module shell (13) right-hand member sliding connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011225967.1A CN112333365B (en) | 2020-11-05 | 2020-11-05 | Bidirectional camera module with self-cleaning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011225967.1A CN112333365B (en) | 2020-11-05 | 2020-11-05 | Bidirectional camera module with self-cleaning function |
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| Publication Number | Publication Date |
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| CN112333365A true CN112333365A (en) | 2021-02-05 |
| CN112333365B CN112333365B (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011225967.1A Active CN112333365B (en) | 2020-11-05 | 2020-11-05 | Bidirectional camera module with self-cleaning function |
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| CN (1) | CN112333365B (en) |
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| CN209105230U (en) * | 2018-10-31 | 2019-07-12 | Oppo广东移动通信有限公司 | Protective shell and mobile terminal sub-assembly |
| CN210745223U (en) * | 2020-03-02 | 2020-06-12 | 科洣电子科技(深圳)有限公司 | Mobile phone with camera protection structure |
| CN111586272A (en) * | 2020-05-11 | 2020-08-25 | 四川芯合利诚科技有限公司 | Security monitoring camera with cleaning function based on Internet of things |
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| JP2007108397A (en) * | 2005-10-13 | 2007-04-26 | Canon Inc | Barrier device, lens barrel, and imaging apparatus |
| CN202163480U (en) * | 2011-08-08 | 2012-03-14 | 马夸特开关(上海)有限公司 | Safe sliding block of electronic steering pipe column locking device |
| CN108124089A (en) * | 2017-12-26 | 2018-06-05 | 重庆轩腾科技有限公司 | Intelligent monitor system based on monitoring camera-shooting |
| CN208337715U (en) * | 2018-07-17 | 2019-01-04 | 河南豪威智能科技有限公司 | A kind of rainwater-proof outdoor surveillance camera |
| CN209105230U (en) * | 2018-10-31 | 2019-07-12 | Oppo广东移动通信有限公司 | Protective shell and mobile terminal sub-assembly |
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| CN111586272A (en) * | 2020-05-11 | 2020-08-25 | 四川芯合利诚科技有限公司 | Security monitoring camera with cleaning function based on Internet of things |
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| Publication number | Publication date |
|---|---|
| CN112333365B (en) | 2022-02-01 |
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