CN110967911A - Dedicated projection equipment of office of intelligence - Google Patents

Dedicated projection equipment of office of intelligence Download PDF

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Publication number
CN110967911A
CN110967911A CN201911317641.9A CN201911317641A CN110967911A CN 110967911 A CN110967911 A CN 110967911A CN 201911317641 A CN201911317641 A CN 201911317641A CN 110967911 A CN110967911 A CN 110967911A
Authority
CN
China
Prior art keywords
projector
rotating rod
magnetic sheet
projecting apparatus
module
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.)
Pending
Application number
CN201911317641.9A
Other languages
Chinese (zh)
Inventor
刘卫红
王傲冰
高利军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xingtai Polytechnic College
Original Assignee
Xingtai Polytechnic College
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xingtai Polytechnic College filed Critical Xingtai Polytechnic College
Priority to CN201911317641.9A priority Critical patent/CN110967911A/en
Publication of CN110967911A publication Critical patent/CN110967911A/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/145—Housing details, e.g. position adjustments thereof

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)

Abstract

The invention discloses intelligent projection equipment special for offices, which comprises a base, a projector, a portable device and an operating device, wherein the portable device is arranged on two sides of the projector, the operating device is arranged in the projector, the base is arranged at the lower end of the projector, the portable device comprises a first rotating rod, one end of the first rotating rod is fixedly provided with a second rotating rod, two sides of the projector are fixedly provided with fixed blocks, the outer surface of the second rotating rod is fixedly provided with a first magnetic sheet, and the inner part of an installation seat is fixedly provided with a second magnetic sheet. The portable device is arranged, so that the projector can be conveniently disassembled, assembled and carried, the projection place can be conveniently and flexibly moved, the use is more convenient, the intellectualization of the projection equipment is improved by arranging the operating device, the angle of the projector can be conveniently and automatically adjusted, and the practicability is improved.

Description

Dedicated projection equipment of office of intelligence
Technical Field
The invention relates to the technical field of projection equipment, in particular to intelligent projection equipment special for offices.
Background
The projector, also known as a projector, is a device capable of projecting images or videos onto a curtain, and can be connected with a computer, a VCD, a DVD, a BD, a game machine, a DV and the like through different interfaces to play corresponding video signals.
1. The existing projection equipment special for offices is usually fixed on a ceiling or a desktop, and when a projection place needs to be replaced, the projection equipment is very inconvenient, so that the projector is inconvenient to carry and disassemble;
2. the angle of the existing dedicated projection equipment for offices can not be automatically adjusted generally, the operation is not intelligent enough in the using process, the working state of a projector cannot be displayed in real time, and the use is not convenient enough.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the intelligent projection equipment special for the office, and solves the problem that the existing projection equipment special for the office is inconvenient to carry and disassemble.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a dedicated projection equipment of office of intelligence, includes base, projecting apparatus, portable equipment and operating means, portable equipment installs the both sides at the projecting apparatus, operating means installs the inside at the projecting apparatus, pedestal mounting is at the lower extreme of projecting apparatus.
The portable equipment includes first dwang, the one end fixed mounting of first dwang has the second dwang, the equal fixed mounting in both sides of projecting apparatus has the fixed block, the fixed surface of second dwang installs first magnetic sheet, the inside fixed mounting of mount pad has the second magnetic sheet, the both sides of mount pad all run through and are provided with the bolt, the lower extreme fixed mounting of projecting apparatus has the locating lever.
Operating means includes single chip module, the front end fixed mounting of projecting apparatus has the display screen, one side fixed mounting of display screen has control button, the inside fixed mounting of projecting apparatus has storage battery, the output of display screen and display module's input electric connection, control button's output and button module's input electric connection, storage battery's output and power module's input electric connection, the inside fixed mounting of base has electric telescopic handle, single chip module's output and display screen, control button, storage battery and electric telescopic handle's input electric connection.
Further optimize this technical scheme, the upper end fixed mounting of base has the regulation pole, fixed connection between regulation pole and the projecting apparatus.
Further optimize this technical scheme, one side fixed mounting of projecting apparatus front end has projection lens, and the upper end fixed mounting of projecting apparatus has the handle.
Further optimize this technical scheme, the fixed block all seted up with the front end of mount pad and erect the groove, second dwang and perpendicular looks adaptation between the groove.
Further optimize this technical scheme, the one side that first magnetic sheet and second magnetic sheet are adjacent to each other is the S utmost point and N utmost point respectively, and the quantity of first magnetic sheet and second magnetic sheet is two sets of.
Further optimize this technical scheme, the thread groove has been seted up to the lower extreme of second dwang, mesh mutually between bolt and the second dwang.
Further optimize this technical scheme, fixed mounting has the round pin axle between regulation pole and the projecting apparatus, fixed connection between electric telescopic handle and the projecting apparatus.
(III) advantageous effects
Compared with the prior art, the invention provides the intelligent projection equipment special for the office, which has the following beneficial effects:
1. this dedicated projection equipment of office of intelligence, through setting up portable equipment and handle, screw out the bolt, make the second dwang lose fixedly, then break off the second dwang with the fingers and thumb, make the second magnetic sheet separation in first magnetic sheet on the second dwang and the mount pad, the second dwang breaks away from the inside of fixed block afterwards, the second dwang turns to the top, it makes the second dwang folding to rotate first dwang at last, then extract the projector, make locating lever and mount pad separation, and fold the locating lever, mention the handle, can hand-carry the projector, when fixed, according to above-mentioned step with projector and mount pad installation can, made things convenient for and carried out dismouting and carrying to the projector, thereby the convenience is nimble to the projection place and is migrated, it is more convenient to use.
2. This dedicated projection equipment of office of intelligence, through setting up operating means, the display module is used for controlling the display screen, the operating condition that makes the projecting apparatus obtains real-time display, the button module is used for controlling the projecting apparatus, power module stabilizes storage battery's voltage, electronic telescopic link adjusts the angle of projecting apparatus, single-chip module carries out intelligent control to each module, the intellectuality of this projection equipment has been improved, and conveniently carry out automatically regulated to the projecting apparatus angle, the practicality has obtained the improvement.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a portable device according to the present invention;
FIG. 3 is a schematic side view of the present invention;
fig. 4 is a control flow chart of the present invention.
In the figure: 1. a base; 2. adjusting a rod; 3. a mounting seat; 4. a projector; 5. a portable device; 51. a first rotating lever; 52. a second rotating lever; 53. a fixed block; 54. a first magnetic sheet; 55. a second magnetic sheet; 56. a bolt; 57. positioning a rod; 6. a projection lens; 7. an operating device; 71. a single chip module; 72. a display screen; 73. a control button; 74. a battery pack; 75. a display module; 76. a key module; 77. a power supply module; 78. an electric telescopic rod; 8. a handle.
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. 1-4, the present invention provides a technical solution: the utility model provides a dedicated projection equipment of office of intelligence, includes base 1, projecting apparatus 4, portable device 5 and operating means 7, and portable device 5 installs in the both sides of projecting apparatus 4, and operating means 7 installs in the inside of projecting apparatus 4, and base 1 installs the lower extreme at projecting apparatus 4.
The portable device 5 comprises a first rotating rod 51, a second rotating rod 52 is fixedly installed at one end of the first rotating rod 51, fixed blocks 53 are fixedly installed at two sides of the projector 4, a first magnetic sheet 54 is fixedly installed on the outer surface of the second rotating rod 52, a second magnetic sheet 55 is fixedly installed inside the mounting seat 3, bolts 56 are arranged on two sides of the mounting seat 3 in a penetrating mode, a positioning rod 57 is fixedly installed at the lower end of the projector 4, the bolts 56 are screwed out, the second rotating rod 52 is not fixed, then the second rotating rod 52 is pulled off, the first magnetic sheet 54 on the second rotating rod 52 is separated from the second magnetic sheet 55 in the mounting seat 3, then the second rotating rod 52 is separated from the inside of the fixed blocks 53, the second rotating rod 52 is rotated to the upper side, finally the first rotating rod 51 is rotated to fold the second rotating rod 52, then the projector 4 is pulled out, the positioning rod 57 is separated from the mounting seat 3, and folding locating lever 57, mention handle 8, can carry on with oneself to projecting apparatus 4, while being fixed, according to the above-mentioned step with projecting apparatus 4 with mount pad 3 installation can, made things convenient for to carry on dismouting and carrying to projecting apparatus 4 to the convenience is removed in a flexible way to the projection place, and it is more convenient to use.
The operating device 7 comprises a single chip microcomputer module 71, the single chip microcomputer module 71 is of a MAX-7219 type, a display screen 72 is fixedly mounted at the front end of the projector 4, a control button 73 is fixedly mounted at one side of the display screen 72, a storage battery pack 74 is fixedly mounted inside the projector 4, the output end of the display screen 72 is electrically connected with the input end of the display module 75, the output end of the control button 73 is electrically connected with the input end of the key module 76, the output end of the storage battery pack 74 is electrically connected with the input end of the power module 77, an electric telescopic rod 78 is fixedly mounted inside the base 1, the output end of the single chip microcomputer module 71 is electrically connected with the display screen 72, the control button 73, the storage battery pack 74 and the input end of the electric telescopic rod 78, the display module 75 is used for controlling the display screen 72 to display the working state of the projector 4 in real time, power module 77 stabilizes storage battery 74's voltage, and electric telescopic handle 78 adjusts projector 4's angle, and single chip module 71 carries out intelligent control to each module, has improved this projection equipment's intellectuality, and conveniently carries out automatically regulated to projector 4 angle, and the practicality has obtained the improvement.
Specifically, the upper end fixed mounting of base 1 has adjusting pole 2, adjusts fixed connection between pole 2 and the projecting apparatus 4, adjusts pole 2 and can assist the regulation to projecting apparatus 4 under electric telescopic handle 78's effect.
Specifically, a projection lens 6 is fixedly mounted on one side of the front end of the projector 4, a handle 8 is fixedly mounted on the upper end of the projector 4, the projection lens 6 is used for projecting images, and the handle 8 is used for lifting and carrying the projector 4.
Specifically, the front ends of the fixing block 53 and the mounting seat 3 are provided with vertical grooves, and the second rotating rod 52 is matched with the vertical grooves, so that the second rotating rod 52 can be clamped into the fixing block 53 and the mounting seat 3.
Specifically, the adjacent sides of the first magnetic sheet 54 and the second magnetic sheet 55 are respectively an S pole and an N pole, and the number of the first magnetic sheet 54 and the second magnetic sheet 55 is two, so that the first magnetic sheet 54 and the second magnetic sheet 55 can attract each other when approaching.
Specifically, the lower end of the second rotating lever 52 is provided with a threaded groove, and the bolt 56 is engaged with the second rotating lever 52, so that the bolt 56 can be fastened to the second rotating lever 52.
Specifically, a pin shaft is fixedly mounted between the adjusting rod 2 and the projector 4, and the electric telescopic rod 78 is fixedly connected with the projector 4, so that the electric telescopic rod 78 can enable the projector 4 and the adjusting rod 2 to rotate relatively when stretching, and the purpose of adjusting the angle is achieved.
When the portable projector is used, the bolt 56 is screwed out to loose the second rotating rod 52, then the second rotating rod 52 is pulled off to separate the first magnetic sheet 54 on the second rotating rod 52 from the second magnetic sheet 55 in the mounting seat 3, then the second rotating rod 52 is separated from the inside of the fixed block 53, the second rotating rod 52 is rotated to the upper part, finally the first rotating rod 51 is rotated to fold the second rotating rod 52, then the projector 4 is pulled out to separate the positioning rod 57 from the mounting seat 3, the positioning rod 57 is folded, the handle 8 is lifted to carry the projector 4 with oneself, when the portable projector is fixed, the projector 4 and the mounting seat 3 are installed according to the steps, the projector 4 is convenient to disassemble, assemble and carry, thereby the portable projector is convenient to move a projection place flexibly, the use is more convenient, the display module 75 is used for controlling the display screen 72, the working state of the projector 4 is displayed in real time, button module 76 is used for controlling projecting apparatus 4, and power module 77 stabilizes storage battery 74's voltage, and electric telescopic handle 78 adjusts projecting apparatus 4's angle, and single chip module 71 carries out intelligent control to each module, has improved this projection equipment's intellectuality, and conveniently carries out automatically regulated to projecting apparatus 4 angle, and the practicality has obtained the improvement.
To sum up, this dedicated projection equipment of office of intelligence through setting up portable equipment 5, has made things convenient for and has carried projector 4 dismouting to the convenience is removed the projection place in a flexible way, and it is more convenient to use.
By arranging the operating device 7, the intellectualization of the projection equipment is improved, the angle of the projector 4 is conveniently and automatically adjusted, and the practicability is improved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
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 (7)

1. The utility model provides a dedicated projection equipment of office of intelligence, includes base (1), projecting apparatus (4), portable device (5) and operating means (7), its characterized in that: the portable devices (5) are arranged on two sides of the projector (4), the operating device (7) is arranged in the projector (4), and the base (1) is arranged at the lower end of the projector (4);
the portable device (5) comprises a first rotating rod (51), a second rotating rod (52) is fixedly mounted at one end of the first rotating rod (51), fixed blocks (53) are fixedly mounted on two sides of the projector (4), a first magnetic sheet (54) is fixedly mounted on the outer surface of the second rotating rod (52), a second magnetic sheet (55) is fixedly mounted inside the mounting seat (3), bolts (56) are arranged on two sides of the mounting seat (3) in a penetrating mode, and a positioning rod (57) is fixedly mounted at the lower end of the projector (4);
the operating device (7) comprises a singlechip module (71), a display screen (72) is fixedly installed at the front end of the projector (4), a control button (73) is fixedly arranged on one side of the display screen (72), a storage battery pack (74) is fixedly arranged in the projector (4), the output end of the display screen (72) is electrically connected with the input end of the display module (75), the output end of the control button (73) is electrically connected with the input end of the key module (76), the output end of the storage battery pack (74) is electrically connected with the input end of the power module (77), the electric telescopic rod (78) is fixedly installed inside the base (1), and the output end of the single chip microcomputer module (71) is electrically connected with the input ends of the display screen (72), the control button (73), the storage battery pack (74) and the electric telescopic rod (78).
2. An intelligent office-specific projection device according to claim 1, wherein: the upper end fixed mounting of base (1) has regulation pole (2), fixed connection between regulation pole (2) and projecting apparatus (4).
3. An intelligent office-specific projection device according to claim 1, wherein: one side fixed mounting of projecting apparatus (4) front end has projection lens (6), and the upper end fixed mounting of projecting apparatus (4) has handle (8).
4. An intelligent office-specific projection device according to claim 1, wherein: the front end of fixed block (53) and mount pad (3) has all been seted up perpendicular groove, second dwang (52) and perpendicular groove between looks adaptation.
5. An intelligent office-specific projection device according to claim 1, wherein: one side of each of the first magnetic sheet (54) and the second magnetic sheet (55) which are adjacent to each other is an S pole and an N pole, and the number of the first magnetic sheet (54) and the number of the second magnetic sheet (55) are two.
6. An intelligent office-specific projection device according to claim 1, wherein: the lower end of the second rotating rod (52) is provided with a thread groove, and the bolt (56) is meshed with the second rotating rod (52).
7. An intelligent office-specific projection device according to claim 1, wherein: a pin shaft is fixedly installed between the adjusting rod (2) and the projector (4), and the electric telescopic rod (78) is fixedly connected with the projector (4).
CN201911317641.9A 2019-12-19 2019-12-19 Dedicated projection equipment of office of intelligence Pending CN110967911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911317641.9A CN110967911A (en) 2019-12-19 2019-12-19 Dedicated projection equipment of office of intelligence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911317641.9A CN110967911A (en) 2019-12-19 2019-12-19 Dedicated projection equipment of office of intelligence

Publications (1)

Publication Number Publication Date
CN110967911A true CN110967911A (en) 2020-04-07

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CN201911317641.9A Pending CN110967911A (en) 2019-12-19 2019-12-19 Dedicated projection equipment of office of intelligence

Country Status (1)

Country Link
CN (1) CN110967911A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107037684A (en) * 2017-06-12 2017-08-11 张素平 A kind of optical projector for being positioned to more stablize
WO2017194827A1 (en) * 2016-05-11 2017-11-16 Grip Rose Oy An attachment mechanism
CN207527237U (en) * 2017-12-07 2018-06-22 成都安信思远信息技术有限公司 Body and mind custodial care facility with physiology sign monitoring function
CN108391083A (en) * 2018-01-16 2018-08-10 佛山杰致信息科技有限公司 A kind of remote monitoring system of power distribution cabinet
CN109340512A (en) * 2018-08-09 2019-02-15 柳州市钜诚科技有限公司 A kind of automation equipment mounting support structure of stability
CN208687268U (en) * 2018-07-23 2019-04-02 新昌县群诚农业发展有限公司 A kind of projector direction adjusting installation base
CN110159887A (en) * 2018-07-27 2019-08-23 南京瑞贻电子科技有限公司 A kind of fixed device of the oscillograph with defencive function
CN209446949U (en) * 2019-01-25 2019-09-27 合肥三礼数码科技有限公司 A kind of video media releasing device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017194827A1 (en) * 2016-05-11 2017-11-16 Grip Rose Oy An attachment mechanism
CN107037684A (en) * 2017-06-12 2017-08-11 张素平 A kind of optical projector for being positioned to more stablize
CN207527237U (en) * 2017-12-07 2018-06-22 成都安信思远信息技术有限公司 Body and mind custodial care facility with physiology sign monitoring function
CN108391083A (en) * 2018-01-16 2018-08-10 佛山杰致信息科技有限公司 A kind of remote monitoring system of power distribution cabinet
CN208687268U (en) * 2018-07-23 2019-04-02 新昌县群诚农业发展有限公司 A kind of projector direction adjusting installation base
CN110159887A (en) * 2018-07-27 2019-08-23 南京瑞贻电子科技有限公司 A kind of fixed device of the oscillograph with defencive function
CN109340512A (en) * 2018-08-09 2019-02-15 柳州市钜诚科技有限公司 A kind of automation equipment mounting support structure of stability
CN209446949U (en) * 2019-01-25 2019-09-27 合肥三礼数码科技有限公司 A kind of video media releasing device

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Application publication date: 20200407

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