CN116518232A - Projector with angle adjusting structure - Google Patents

Projector with angle adjusting structure Download PDF

Info

Publication number
CN116518232A
CN116518232A CN202310525795.7A CN202310525795A CN116518232A CN 116518232 A CN116518232 A CN 116518232A CN 202310525795 A CN202310525795 A CN 202310525795A CN 116518232 A CN116518232 A CN 116518232A
Authority
CN
China
Prior art keywords
projector
adjusting structure
installation frame
screw rod
angle adjusting
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.)
Withdrawn
Application number
CN202310525795.7A
Other languages
Chinese (zh)
Inventor
马燕
徐世娟
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.)
Chongqing Normal University
Original Assignee
Chongqing Normal University
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 Chongqing Normal University filed Critical Chongqing Normal University
Priority to CN202310525795.7A priority Critical patent/CN116518232A/en
Publication of CN116518232A publication Critical patent/CN116518232A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F16M11/043—Allowing translations
    • F16M11/046—Allowing translations adapted to upward-downward translation movement
    • 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
    • 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
    • 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
    • G03B21/56—Projection screens
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Landscapes

  • 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 relates to the technical field of projectors, in particular to a projector with an angle adjusting structure, which comprises a mounting plate and a host mechanism, wherein the mounting plate is provided with a plurality of angle adjusting grooves; the two sides of the host machine mechanism are provided with connecting plates, lifting components are arranged in the connecting plates, adjusting structures are arranged in the host machine mechanism, connecting sliding blocks are arranged at the connecting positions of the lifting components and the host machine mechanism, screw rod sliding blocks are arranged at the connecting positions of the connecting sliding blocks and the lifting components, and bearings are arranged on the outer sides of the screw rod sliding blocks. According to the invention, the rotating motor of the adjusting structure drives the transmission shaft to rotate, and the transmission shaft drives the turntable to rotate, so that the turntable rotates to drive the installation frame to integrally rotate, the projector is rotated, the effect of adjusting the angle of the projector is realized, when the installation frame rotates, the fixing rod outside the installation frame can slide in the fixing cavity, the fixing rod can strengthen the connection between the fixing cavity and the installation frame, and the separation of the fixing cavity and the installation frame is avoided when the installation frame is used.

Description

Projector with angle adjusting structure
Technical Field
The invention relates to the technical field of projectors, in particular to a projector with an angle adjusting structure.
Background
Projectors, also called projectors, are devices that project or reflect images or screens onto screens by digital light processing or LCD liquid crystal imaging technology, and with the advancement of society, new classes are being implemented, and the use of projectors in the educational field is increasing.
In the projector of publication number CN218332269U, the invention discloses a projector including an instrument body. The utility model discloses a camera, including the instrument body, the front surface of instrument body is provided with the camera, the bottom of instrument body is provided with the mounting panel, the outside of instrument body is provided with dustproof shell, dustproof shell's bottom fixedly connected with fixture block, the draw-in groove that uses with the fixture block cooperation is seted up to the inside of mounting panel, draw-in groove and fixture block joint, the first swivel mount of left side fixedly connected with of mounting panel bottom, the outside rotation of first swivel mount is connected with first bull stick. The problem of projector in the present market when using, because lack dustproof effect, external dust easily gets into in the projector, causes the damage of the interior device of projector, has reduced the life of projector, and can not freely adjust the height of projector according to user's demand, has brought inconvenience for the user, is unfavorable for using widely is solved.
However, this technology provides a projector that can freely adjust the height according to the needs of the user, and in the use process of the projector, the projector itself does not have the effect of angle adjustment, so even if the angle adjustment cannot be performed in the use process of the projector after the height adjustment, the angle adjustment cannot be performed, and thus the projector cannot be more flexibly adjusted in use, therefore, the projector that can be adjusted by angle is needed, and therefore, we propose a projector with an angle adjustment structure.
Disclosure of Invention
The present invention is directed to a projector with an angle adjusting structure, which solves the above-mentioned problems of the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a projector with an angle adjusting structure comprises a mounting plate and a host mechanism;
the two sides of the host mechanism are provided with connecting plates, lifting components are arranged in the connecting plates, and an adjusting structure is arranged in the host mechanism.
Preferably, the host computer mechanism includes mounting bracket, projecting apparatus and fixed chamber, the inside of mounting bracket is equipped with the projecting apparatus, the both sides of projecting apparatus are equipped with fixed chamber.
Preferably, a fixing rod is arranged at the joint of the mounting frame and the fixing cavity, and a circular chute matched with the fixing rod is arranged at the joint of the fixing rod and the fixing cavity.
Preferably, the lifting assembly comprises a driving motor and a screw rod, and the screw rod is arranged at the output end of the driving motor.
Preferably, a connecting sliding block is arranged at the joint of the lifting assembly and the host machine mechanism, a screw rod sliding block is arranged at the joint of the connecting sliding block and the lifting assembly, and a bearing is arranged at the outer side of the screw rod sliding block.
Preferably, the connecting sliding block is fixedly installed with the host mechanism.
Preferably, the adjusting structure comprises a rotating motor, a transmission shaft and a rotary table, wherein the rotating motor is arranged in the host mechanism, the transmission shaft is arranged at the output end of the rotating motor, the rotary table is arranged on the right side of the transmission shaft, and the rotary table is fixedly arranged on the host mechanism.
The above description shows that, by the above technical solution of the present application, the technical problem to be solved by the present application can be necessarily solved.
Meanwhile, through the technical scheme, the invention has at least the following beneficial effects:
according to the invention, the rotating motor drives the transmission shaft to rotate through the arranged adjusting structure, and the transmission shaft drives the turntable to rotate, so that the turntable rotates to drive the installation frame to integrally rotate, the rotation of the projector is realized, the effect of adjusting the angle of the projector is realized in such a way, when the installation frame rotates, the fixing rod at the outer side of the installation frame can slide in the fixing cavity, the fixing rod can strengthen the connection between the fixing cavity and the installation frame, and the separation of the fixing cavity and the installation frame is avoided when the installation frame is used;
the lifting assembly drives the screw rod to rotate through the driving motor, drives the screw rod sliding block which is matched with the screw rod to rotate through the screw rod outside screw rod, drives the connecting sliding block and the host mechanism to move up and down in a mode that the screw rod sliding block moves up and down at the screw rod, is convenient for people to adjust the height of the projector in daily use, enables the host mechanism to be close to the mounting plate in a height adjusting mode, and shields dust above the host mechanism through the mounting plate when the host mechanism is not used in daily use, so that the dust shielding effect above the host mechanism is realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic side view of a stationary chamber according to the present invention;
FIG. 3 is a schematic view of the structure of the mounting frame of the present invention;
fig. 4 is a schematic structural view of the connecting slider of the present invention.
In the figure: 1. a mounting plate; 2. a host mechanism; 201. a mounting frame; 202. a projector; 203. a fixed cavity; 3. a connecting plate; 4. a lifting assembly; 401. a driving motor; 402. a screw rod; 5. an adjustment structure; 501. a rotating electric machine; 502. a transmission shaft; 503. a turntable; 6. a fixed rod; 7. a circular chute; 8. the connecting slide block; 9. a screw rod sliding block; 10. and (3) a bearing.
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.
Description of the preferred embodiments
As shown in fig. 1, 2 and 3, the present invention provides a technical solution: a projector with an angle adjusting structure comprises a mounting plate 1 and a host machine mechanism 2;
the both sides of host computer mechanism 2 are equipped with connecting plate 3, the inside of connecting plate 3 is equipped with lifting unit 4, the inside of host computer mechanism 2 is equipped with regulation structure 5, host computer mechanism 2 includes mounting bracket 201, projecting apparatus 202 and fixed chamber 203, the inside of mounting bracket 201 is equipped with projecting apparatus 202, the both sides of projecting apparatus 202 are equipped with fixed chamber 203, the junction of mounting bracket 201 and fixed chamber 203 is equipped with dead lever 6, the junction of dead lever 6 and fixed chamber 203 is equipped with the circular spout 7 that matches with dead lever 6, regulation structure 5 includes rotating electrical machines 501, transmission shaft 502 and carousel 503, the inside of host computer mechanism 2 is equipped with rotating electrical machines 501, the output of rotating electrical machines 501 is equipped with transmission shaft 502, the right side of transmission shaft 502 is equipped with carousel 503, carousel 503 fixed mounting is on host computer mechanism 2, regulation structure 5 that sets up drives rotation of transmission shaft 502 through rotating shaft 502, thereby utilize carousel 503 to rotate and drive the holistic rotation of mounting bracket 201, realize the rotation to projecting apparatus 202, and realize the effect of angle adjustment to projecting apparatus 202 through this kind, when mounting bracket 201 rotates, dead lever 6 in the inside fixed chamber 203 slides, dead lever 6 in the fixed chamber 203, can strengthen the fixed lever 203 and the separation between the fixed chamber 203 and the fixed connection when 201 is used.
Example two
The scheme in the first embodiment is further described below in conjunction with a specific working manner, and the details are described below:
as shown in fig. 1 and fig. 4, as a preferred embodiment, further, on the basis of the above manner, the lifting assembly 4 includes a driving motor 401 and a screw rod 402, the output end of the driving motor 401 is provided with the screw rod 402, the connection part of the lifting assembly 4 and the host mechanism 2 is provided with a connecting slide block 8, the connection part of the connecting slide block 8 and the lifting assembly 4 is provided with a screw rod slide block 9, the outer side of the screw rod slide block 9 is provided with a bearing 10, the connecting slide block 8 is fixedly installed with the host mechanism 2, the lifting assembly 4 drives the screw rod 402 to rotate through the driving motor 401, the screw rod slide block 9 matched with the screw rod 402 is driven to rotate through threads on the outer side of the screw rod 402, and the connecting slide block 8 and the host mechanism 2 are driven to move up and down through the form of the screw rod slide block 9 moving up and down at the screw rod 402, so that people can conveniently adjust the height of the projector 202 during daily use, and the host mechanism 2 is close to the mounting plate 1 through the mode of height adjustment, and the dust shielding effect of the host mechanism 2 is realized on the place above the host mechanism 2 when the host mechanism is not used in daily use.
From the above, it can be seen that:
the invention aims at the technical problems that: the technology provides a projector with the height capable of being freely adjusted according to the needs of a user, and the projector does not have the effect of angle adjustment in the use process of the projector, so that the angle adjustment can not be performed in the use process of the projector even after the height adjustment is performed, and the projector can not be flexibly adjusted in the use process, so that the projector with the angle adjustable needs to be used; the technical scheme of each embodiment is adopted. Meanwhile, the implementation process of the technical scheme is as follows:
when the projector with the angle adjusting structure is used, the mounting plate 1 is firstly arranged at a place where the projector 202 is required, then the projector 202 can be used, the adjusting structure 5 and the lifting assembly 4 can be used when the projector 202 is required to be adjusted in height or angle in the process of using the projector 202, the driving motor 401 of the lifting assembly 4 drives the screw rod 402 to rotate when the lifting assembly 4 is used, the screw rod sliding block 9 which is matched with the screw rod 402 is driven to rotate through threads on the outer side of the screw rod 402, the connecting sliding block 8 and the host mechanism 2 are driven to move up and down in the mode that the screw rod sliding block 9 moves up and down at the screw rod 402, so that people can conveniently adjust the height of the projector 202 in daily use, and when the adjusting structure 5 is used, the rotating motor 501 of the adjusting structure 5 drives the transmission shaft 502 to rotate, and drives the turntable 503 to rotate through the transmission shaft 502, so that the turntable 503 rotates to drive the installation frame 201 to integrally rotate, the projector 202 is rotated, the effect of adjusting the angle of the projector 202 is achieved through the mode, when the installation frame 201 rotates, the fixing rod 6 on the outer side of the installation frame 201 can slide in the fixing cavity 203, the fixing rod 6 can strengthen the connection between the fixing cavity 203 and the installation frame 201, the separation of the fixing cavity 203 and the installation frame 201 is avoided when the installation frame 201 is used, meanwhile, when the lifting assembly 4 is used, the host machine mechanism 2 is close to the installation plate 1 through the mode of height adjustment, dust shielding is carried out on the place above the host machine mechanism 2 when the installation plate 1 is not used in daily life, and the effect of shielding dust above the host machine mechanism 2 is achieved;
through above-mentioned setting, this application must solve above-mentioned technical problem, simultaneously, realizes following technical effect:
according to the adjusting structure 5 provided by the invention, the rotating motor 501 drives the transmission shaft 502 to rotate, and the transmission shaft 502 drives the turntable 503 to rotate, so that the turntable 503 rotates to drive the whole installation frame 201 to rotate, the rotation of the projector 202 is realized, the effect of adjusting the angle of the projector 202 is realized in such a way, when the installation frame 201 rotates, the fixed rod 6 on the outer side of the installation frame 201 slides in the fixed cavity 203, and the fixed rod 6 can strengthen the connection between the fixed cavity 203 and the installation frame 201, so that the separation of the fixed cavity 203 and the installation frame 201 is avoided in use;
the lifting assembly 4 provided by the invention drives the screw rod 402 to rotate through the driving motor 401, drives the screw rod sliding block 9 which is matched with the screw rod 402 to rotate through the screw thread on the outer side of the screw rod 402, drives the connecting sliding block 8 and the host mechanism 2 to move up and down through the mode that the screw rod sliding block 9 moves up and down at the screw rod 402, is convenient for people to adjust the height of the projector 202 during daily use, enables the host mechanism 2 to be close to the mounting plate 1 through the mode of height adjustment, and shields dust from a place above the host mechanism 2 through the mounting plate 1 during daily non-use, so that the dust shielding effect above the host mechanism 2 is realized.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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. A projector with an angle adjusting structure, which is characterized by comprising a mounting plate (1) and a host mechanism (2);
the two sides of the host mechanism (2) are provided with connecting plates (3), lifting components (4) are arranged in the connecting plates (3), and an adjusting structure (5) is arranged in the host mechanism (2).
2. The projector with the angle adjusting structure according to claim 1, wherein the host mechanism (2) comprises a mounting frame (201), a projector (202) and a fixing cavity (203), the projector (202) is arranged in the mounting frame (201), and the fixing cavities (203) are arranged on two sides of the projector (202).
3. Projector with angle adjusting structure according to claim 2, characterized in that the connection of the mounting frame (201) and the fixing cavity (203) is provided with a fixing rod (6), and the connection of the fixing rod (6) and the fixing cavity (203) is provided with a circular chute (7) matched with the fixing rod (6).
4. Projector with angle adjusting structure according to claim 1, characterized in that the lifting assembly (4) comprises a drive motor (401) and a screw (402), the output end of the drive motor (401) being provided with the screw (402).
5. Projector with angle adjusting structure according to claim 1, characterized in that the connection of the lifting assembly (4) and the host mechanism (2) is provided with a connecting slide block (8), the connection of the connecting slide block (8) and the lifting assembly (4) is provided with a screw slide block (9), and the outer side of the screw slide block (9) is provided with a bearing (10).
6. Projector with angle adjusting structure according to claim 1, characterized in that the connecting slider (8) is fixedly mounted with the host mechanism (2).
7. The projector with the angle adjusting structure according to claim 1, wherein the adjusting structure (5) comprises a rotating motor (501), a transmission shaft (502) and a rotary table (503), the rotating motor (501) is arranged in the host mechanism (2), the transmission shaft (502) is arranged at the output end of the rotating motor (501), the rotary table (503) is arranged on the right side of the transmission shaft (502), and the rotary table (503) is fixedly arranged on the host mechanism (2).
CN202310525795.7A 2023-05-09 2023-05-09 Projector with angle adjusting structure Withdrawn CN116518232A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310525795.7A CN116518232A (en) 2023-05-09 2023-05-09 Projector with angle adjusting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310525795.7A CN116518232A (en) 2023-05-09 2023-05-09 Projector with angle adjusting structure

Publications (1)

Publication Number Publication Date
CN116518232A true CN116518232A (en) 2023-08-01

Family

ID=87391952

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310525795.7A Withdrawn CN116518232A (en) 2023-05-09 2023-05-09 Projector with angle adjusting structure

Country Status (1)

Country Link
CN (1) CN116518232A (en)

Similar Documents

Publication Publication Date Title
CN110886957A (en) Lens multi-angle rotating structure of monitoring equipment
CN211378126U (en) Full-freedom-degree monitoring system
WO2021072823A1 (en) Photography apparatus, electronic device, and method for using electronic device
CN116518232A (en) Projector with angle adjusting structure
CN213177570U (en) Projecting device is used in university's experiment teaching
CN108737783A (en) The comprehensive regulating mechanism of security monitoring video camera
CN114866675A (en) High dynamic camera and camera lens dust removal structure thereof
CN207814885U (en) A kind of adjustable type projector suspension bracket
CN217797990U (en) Projection arrangement who facilitates use
CN221880986U (en) Adjusting device for computer liquid crystal display screen
CN216243111U (en) Controllable splicing screen
CN219938401U (en) Drawing scanning equipment
CN219389237U (en) Bracket assembly of camera
CN213177560U (en) Projection arrangement of business administration training
CN221230945U (en) Adhesive deposite device is used in LCD processing
CN112764306B (en) Virtual reality panoramic image acquisition device
CN218818987U (en) Novel electric television bracket
CN220891544U (en) LED display screen mounting bracket of scalable regulation
CN221402342U (en) Live broadcast equipment traction frame for live broadcast site
CN218178526U (en) Computer multimedia distance education training teaching device
CN221300789U (en) Wall hanging device for display screen
CN220604180U (en) Electronic platform multifunctional teaching touch control integrated machine
CN221146111U (en) Projection arrangement under education science and technology line
CN214618688U (en) Device for computer image processing
CN220506433U (en) Security protection camera of convenient regulation

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
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20230801