CN113854759A - Screen-throwing type intelligent education blackboard for drawing training - Google Patents
Screen-throwing type intelligent education blackboard for drawing training Download PDFInfo
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- CN113854759A CN113854759A CN202111294147.2A CN202111294147A CN113854759A CN 113854759 A CN113854759 A CN 113854759A CN 202111294147 A CN202111294147 A CN 202111294147A CN 113854759 A CN113854759 A CN 113854759A
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- frame
- screen
- projectable
- intelligent education
- education blackboard
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
- A47B97/04—Easels or stands for blackboards or the like
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B27/00—Drawing desks or tables; Carriers for drawing-boards
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B27/00—Drawing desks or tables; Carriers for drawing-boards
- A47B27/14—Adjustable underframes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
- B44D3/00—Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables
- B44D3/18—Boards or sheets with surfaces prepared for painting or drawing pictures; Stretching frames for canvases
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- 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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
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- 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
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a screen-throwing type intelligent education blackboard for drawing training, wherein a storage box is clamped at the lower side of the front end of a drawing board, side panels are fixed at the left and right sides of the upper end of the drawing board, inclined angle slotted holes are formed in the side panels, a back plate is rotationally connected in the inclined angle slotted holes, the inclined angle slotted holes are rotationally connected with the back plate through bolts, nuts are matched with the bolts, the upper sides of the nuts are clamped in sawtooth-shaped grooves of the inclined angle slotted holes, and side plates are fixed at the left and right sides of the back plate respectively. Indicating that the center of gravity is on the display board, improving its stability.
Description
Technical Field
The invention relates to the field of drawing training, in particular to a screen-throwing type intelligent education blackboard for drawing training.
Background
The drawing board is a drawing tool, is a flat plate for padding drawing paper during drawing, consists of a panel and a bottom plate, and is often provided with a support, so that the drawing board is convenient to place. Some drawing boards are provided with clips, are usually made of wood, can be made according to the requirements of users, and are simple in structure. In addition, the plastic drawing board can be directly used for drawing on the board, can be erased, is multipurpose for children to practice drawing, and generally enables students to surround teachers to watch and learn the drawing skills of the teachers in the drawing teaching activities and then perform practical exercises by means of memory. The teaching mode cannot give consideration to every student, and the learning efficiency is influenced by the different watching angles of the students.
The chinese patent discloses a painting teaching system, (grant publication No. CN210142415U), which can shoot the video and play of the painting room teaching, and is convenient for teachers to teach and students to learn, but its projected screen is limited, and when not used, it occupies a large space. Accordingly, those skilled in the art have provided a screen-projectable intelligent education blackboard for painting training to solve the problems set forth in the above background art.
Disclosure of Invention
In order to solve the technical problem, the invention provides a screen-throwing type intelligent education blackboard for drawing training, which comprises a drawing board and a storage box, wherein the storage box is clamped at the lower side of the front end of the drawing board, side panels are fixed on the left side and the right side of the upper end of the drawing board, inclined angle slotted holes are formed in the side panels, a back plate is rotationally connected in the inclined angle slotted holes, the inclined angle slotted holes and the back plate are rotationally connected through bolts, the bolts are provided with nuts, and the upper sides of the nuts are clamped in sawtooth-shaped grooves of the inclined angle slotted holes;
the left side and the right side of the back plate are both fixed with side plates, sliding grooves are formed in the side plates, rear supporting legs are connected in the sliding grooves in a sliding mode, screw holes are formed in the lower ends of the side plates, first positioning screws are arranged in the screw holes, the end portions of the first positioning screws are pressed on the rear supporting legs, the height of the rear supporting legs is fixed, the width of the display plate in the left-right direction and the thickness of the supporting frame in the left-right direction are smaller than the distance between the two side plates, and therefore the supporting frame and the display plate can be contained in a box formed by combining a drawing board and the back plate, and the occupied area is reduced;
the upper end and the lower end of the rear side of the drawing board are respectively fixed with an upper frame and a bottom frame, the left side and the right side of the upper end of the bottom frame are hinged with support frames, the support frames are formed by mutually hinging two rods, clamping grooves are symmetrically formed in the left side and the right side of the front side of the back plate, the upper end of the rear side of each support frame is pressed in the corresponding clamping groove to support the support frame, the upper end of each side plate is rotatably connected with a rotating block, a display board is rotatably connected onto the rotating block, the middle part of the lower side of the display board is connected with an inclined rod through a spherical hinge, the lower side of each side plate is provided with a clamping hook, and the lower end of each inclined rod can be clamped into the corresponding clamping hook;
one side of the display board, which is close to the rotating block, is connected with a second positioning screw, the end part of the second positioning screw is pressed in a positioning groove, the positioning groove is located on a side plate to help fixing, the upper end of the display board is connected with a projection frame in a clamping mode, the upper end of the projection frame is hinged with a propeller strut, a bolt is arranged at the hinged position, the front end of the propeller strut is connected with a projector through a coiled pipe, a pull wire is wound at the rear end of the propeller strut, the lower end of the pull wire is connected with a balance weight, the other end of the pull wire is connected to the front half part of the propeller strut in a sliding mode, a screw is arranged at the sliding position, and the center of gravity of the projection frame falls on the display board by adjusting the angle of the propeller strut and the pulling position of the pull wire, so that the stability of the projection frame is improved.
Preferably: the front side of storage box is equipped with continuous handle, and the rear side passes through the card strip card on the drawing board for when not, can carry through the mutual joint of two card strips, the handle is carried and is pulled, conveniently carries.
Preferably: the upside of storage box is equipped with gliding door plant, is equipped with vertical check in the storage box, makes things convenient for the classification, and the door plant of taking out to open can deposit pigment temporarily.
Preferably: the cross section of the sliding groove in the side plate is T-shaped, so that deflection in the sliding process is avoided.
Preferably: the cross-section of back supporting leg is the I shape, and the lower extreme of back supporting leg is semi-circular, supports the drawing board.
Preferably: the rear side opening of joint hook, and inside opening and the rear side opening intercommunication that is equipped with up for the down tube can be automatic joint under the effect of gravity.
Preferably: the lower end of the diagonal rod is fixed with a convex block, and the convex block and the inclined part of the diagonal rod are respectively positioned at two sides of the side plate, so that the side plate cannot be taken out in the left-right direction.
Preferably: one side that the drawing board was kept away from to the show board articulates there is the configuration pole, and the end fixing of configuration pole has heavy ball, and articulated axis and turning block coincide with show board articulated axis, and the help stabilizes the show board.
Preferably: the projection frame is U-shaped, and the U-shaped inboard is equipped with the clamping jaw, and the upper end and the projection frame of clamping jaw are articulated, and the lower extreme passes through spring coupling projection frame, and spring coupling department is equipped with pressure sensor, and the middle part of clamping jaw is equipped with the depression bar, and the unblock button is connected to the front end of depression bar, makes things convenient for manual projection frame of taking off.
Preferably: pressure sensor electric connection projecting apparatus judges the positive and negative of pressure through the digit on the projecting apparatus, when pressure is close zero, shows that the focus has fallen on the show board.
The invention has the technical effects and advantages that:
1. the foldable display board has the advantages that the foldable drawing board and the foldable back board are used for storing the supporting legs together, the occupied space is reduced, the foldable display board can be used for multimedia teaching, and the increasingly rich teaching requirements in the prior art are met.
2. The position of the gravity center of the projector can be adjusted through the propeller strut and the stay wire, the positive and negative of the pressure are judged by the number on the projector, when the pressure is close to zero, the gravity center is shown to fall on the display board, and the stability of the projector is improved.
Drawings
FIG. 1 is a schematic perspective view of the present application;
FIG. 2 is a schematic view of a portion A of FIG. 1;
FIG. 3 is a schematic view of the structure of the snap groove in the present application;
FIG. 4 is a schematic top view of the present application;
FIG. 5 is a left side view schematic of the present application;
FIG. 6 is a schematic diagram of a projection stand according to the present application;
FIG. 7 is a schematic view of a jaw configuration of the present application;
in the figure: 1. a drawing board; 2. a storage box; 3. a display board; 4. a back plate; 5. a side plate; 6. a rear support leg; 7. a first positioning screw; 8. a bottom frame; 9. putting the frame on; 10. a side panel;
11. a support frame; 12. a clamping groove; 13. an inclination slot; 14. a diagonal bar; 15. clamping hooks; 16. rotating the block; 17. a second set screw; 18. positioning a groove; 19. a projection frame; 20. a projector;
21. a serpentine tube; 22. a herringbone frame; 23. a pull wire; 24. balancing weight; 25. a clamping jaw; 26. and unlocking the key.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Referring to fig. 1 to 7, in the present embodiment, a screen-projectable intelligent education blackboard for painting training is provided, which includes a drawing board 1 and a storage box 2, the lower side of the front end of the drawing board 1 is clamped with a storage box 2, the front side of the storage box 2 is provided with a handle connected with the storage box, the rear side of the storage box is clamped on the drawing board 1 through a clamping strip, so that when the drawing board is not used, can be mutually clamped through two clamping strips and is carried by a handle for convenient carrying, a sliding door panel is arranged on the upper side of the storage box 2, vertical lattices are arranged in the storage box 2 for convenient classification, the drawn door panel can temporarily store pigment, side panels 10 are fixed on the left side and the right side of the upper end of the drawing board 1, inclination angle slotted holes 13 are arranged on the side panels 10, the inclination angle slotted holes 13 are rotationally connected with the back plate 4, the inclination angle slotted hole 13 is rotationally connected with the back plate 4 through a bolt, the bolt is provided with a nut, and the upper side of the nut is clamped in a sawtooth-shaped groove of the inclination angle slotted hole 13;
the drawing board is characterized in that side plates 5 are fixed on the left side and the right side of the back plate 4, sliding grooves are formed in the side plates 5, rear supporting legs 6 are connected in the sliding grooves in a sliding mode, the cross sections of the sliding grooves in the side plates 5 are T-shaped, deflection in the sliding process is avoided, the cross sections of the rear supporting legs 6 are I-shaped, the lower ends of the rear supporting legs 6 are semicircular, the drawing board 1 is supported, screw holes are formed in the lower ends of the side plates 5, positioning screws 7 are arranged in the screw holes, the end portions of the positioning screws 7 are pressed on the rear supporting legs 6, the height of the rear supporting legs 6 is fixed, the width of the left and right directions of the display board 3 and the thickness of the left and right directions of the supporting frame 11 are smaller than the distance between the two side plates 5, the supporting frame 11 and the display board 3 can be accommodated in a box formed by combining the drawing board 1 and the back plate 4, and the occupied area is reduced;
an upper frame 9 and a bottom frame 8 are respectively fixed at the upper end and the lower end of the rear side of the drawing board 1, the left side and the right side of the upper end of the bottom frame 8 are respectively hinged with a support frame 11, the support frame 11 is formed by hinging two rods, the front side of the back plate 4 is bilaterally symmetrical and is provided with a clamping groove 12, the upper end of the rear side of the support frame 11 is pressed in the clamping groove 12 to support the support frame 11, the upper end of the side plate 5 is rotatably connected with a rotating block 16, the rotating block 16 is rotatably connected with a display plate 3, the middle part of the lower side of the display plate 3 is connected with an inclined rod 14 through a spherical hinge, the lower side of the side plate 5 is provided with a clamping hook 15, the lower end of the inclined rod 14 can be clamped into the clamping hook 15, the rear side opening of the clamping hook 15 is internally provided with an upward opening and a rear side opening which are communicated, so that the inclined rod 14 can be automatically clamped under the action of gravity, the lower end of the inclined rod 14 is fixed with a convex block, and the inclined parts of the convex block are respectively located at the two sides of the side plate 5, so that the utility model can not be taken out in the left and right direction;
a configuration rod is hinged to one side, away from the drawing board 1, of the display board 3, a heavy ball is fixed to the end of the configuration rod, the hinged axis coincides with the hinged axis of the rotating block 16 and the display board 3 to help stabilize the display board 3, one side, close to the rotating block 16, of the display board 3 is connected with a second positioning screw 17, the end of the second positioning screw 17 is pressed in a positioning groove 18, the positioning groove 18 is located on the side plate 5 to help to fix, a projection frame 19 is clamped at the upper end of the display board 3, a herringbone frame 22 is hinged to the upper end of the projection frame 19, a bolt is arranged at the hinged position, the front end of the herringbone frame 22 is connected with the projector 20 through a coiled pipe 21, a pull wire 23 is wound around the rear end of the herringbone frame 22, the lower end of the pull wire 23 is connected with a balance weight 24, the other end of the pull wire 23 is slidably connected to the front half part of the herringbone frame 22, a screw is arranged at the sliding position, and the angle of the herringbone frame 22 and the pulling position of the pull wire 23 are adjusted, thereby, the center of gravity of the projection frame 19 is located on the display board 3, and the stability is improved.
The pressure sensor is electrically connected with the projector 20, judges whether the pressure is positive or negative through the number on the projector 20, and when the pressure is close to zero, the gravity center is shown to fall on the display board 3.
The working principle of the invention is as follows: during the use, rotate drawing board 1 forward, rotate support frame 11 again, make the back upper end card of support frame 11 in joint groove 12, the length of back supporting leg 6 of readjustment, make it touch the end, and accomplish fixedly through set screw 7, accomplish preliminary fixed, when needing the inclination of adjustment drawing board 1, can loosen the bolt in the inclination slotted hole 13, and lift drawing board 1, the groove of reselect joint, it is synchronous, the length of back supporting leg 6 of adjustment and the position of opening angle and joint groove 12 of support frame 11.
During operation, can directly through the card strip with storage box 2 joint on drawing board 1, draw a picture and the teaching, when needs projection demonstration, rotate show board 3 and turning block 16, it is vertical to rotate show board 3 again, go into in clamping hook 15 with the lower extreme card of down diagonal 14, put down the configuration pole, after stable, screw up set screw two 17, fix in the position of constant head tank 18, accomplish the fixed of show board 3, block projector 20 on show board 3 through projecting frame 19, the specific operation is, press unblock button 26, loosen after the card is gone into, accomplish the joint automatically, adjust the position of projector 20 through coiled pipe 21, after the adjustment is accomplished, the pulling position of adjustment 23 acts as go-between, judge the positive and negative of pressure through the digit on projector 20, when pressure is close to zero, show the focus and fallen on show board 3, improve its stability.
It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.
Claims (10)
1. A screen-throwing type intelligent education blackboard for drawing training comprises a drawing board (1) and a storage box (2), and is characterized in that the storage box (2) is clamped on the lower side of the front end of the drawing board (1), side panels (10) are fixed on the left side and the right side of the upper end of the drawing board (1), an inclination angle slotted hole (13) is formed in each side panel (10), a back plate (4) is rotationally connected in each inclination angle slotted hole (13), the inclination angle slotted hole (13) is rotationally connected with the back plate (4) through a bolt, the bolt is provided with a nut, and the upper side of the nut is clamped in a sawtooth-shaped groove of each inclination angle slotted hole (13);
the left side and the right side of the back plate (4) are both fixed with side plates (5), sliding grooves are formed in the side plates (5), rear supporting legs (6) are connected in the sliding grooves in a sliding mode, screw holes are formed in the lower ends of the side plates (5), first positioning screws (7) are arranged in the screw holes, the end portions of the first positioning screws (7) are pressed on the rear supporting legs (6), the width of the display plate (3) in the left-right direction and the thickness of the supporting frame (11) in the left-right direction are smaller than the distance between the two side plates (5);
the upper end and the lower end of the rear side of the drawing board (1) are respectively fixed with an upper frame (9) and a bottom frame (8), the left side and the right side of the upper end of the bottom frame (8) are hinged with supporting frames (11), the supporting frames (11) are formed by hinging two rods, clamping grooves (12) are symmetrically formed in the left side and the right side of the front side of the back plate (4), the upper end of the rear side of each supporting frame (11) is pressed in each clamping groove (12), the upper end of each side plate (5) is rotatably connected with a rotating block (16), each rotating block (16) is rotatably connected with a display plate (3), the middle part of the lower side of each display plate (3) is connected with an inclined rod (14) through a spherical hinge, a clamping hook (15) is arranged on the lower side of each side plate (5), and the lower end of each inclined rod (14) can be clamped into the corresponding clamping hook (15);
one side, close to the rotating block (16), of the display board (3) is connected with a second positioning screw (17), the end portion of the second positioning screw (17) is pressed in the positioning groove (18), the positioning groove (18) is located on the side plate (5), the upper end of the display board (3) is connected with a projection frame (19) in a clamping mode, the upper end of the projection frame (19) is hinged with a herringbone frame (22), a bolt is arranged at the hinged position, the front end of the herringbone frame (22) is connected with the projector (20) through a coiled pipe (21), the rear end of the herringbone frame (22) is wound with a pull wire (23), the lower end of the pull wire (23) is connected with a balance weight (24), the other end of the pull wire (23) is connected to the front half portion of the herringbone frame (22) in a sliding mode, and the sliding position is provided with a screw.
2. A screen-projectable intelligent education blackboard for painting training as claimed in claim 1, wherein the storage box (2) is provided with a handle connected at the front side and a card strip at the rear side for being clamped on the drawing board (1).
3. A screen-projectable intelligent education blackboard for painting training as claimed in claim 1, wherein the storage box (2) is provided with a sliding door panel at the upper side, and a vertical grid is provided in the storage box (2).
4. A screen-projectable intelligent education blackboard for painting training according to claim 1, characterized in that the cross section of the chute in the side plate (5) is T-shaped.
5. A screen-projectable intelligent education blackboard for painting training as claimed in claim 1, wherein the rear support leg (6) has an i-shaped cross section, and the lower end of the rear support leg (6) is semicircular.
6. A screen-projectable intelligent education blackboard for painting training as claimed in claim 1, wherein the clamping hook (15) is opened at the rear side and has an upward opening therein communicating with the rear side.
7. A screen-projectable intelligent education blackboard for painting training as claimed in claim 1, wherein the lower end of the slant rod (14) is fixed with a projection, and the projection and the slant portion of the slant rod are respectively located at both sides of the side plate (5).
8. A screen-projectable intelligent education blackboard for painting training according to claim 1, characterized in that one side of the display board (3) far from the drawing board (1) is hinged with a configuration rod, the end of the configuration rod is fixed with a heavy ball, and the hinged axis coincides with the hinged axis of the rotating block (16) and the display board (3).
9. The intelligent screen-throwing education blackboard for painting training according to claim 1, wherein the projection frame (19) is U-shaped, the clamping jaw (25) is arranged on the inner side of the U-shape, the upper end of the clamping jaw (25) is hinged with the projection frame (19), the lower end of the clamping jaw is connected with the projection frame (19) through a spring, a pressure sensor is arranged at the spring joint, a pressure rod is arranged in the middle of the clamping jaw (25), and the front end of the pressure rod is connected with the unlocking button (26).
10. A screen-projectable intelligent education blackboard for painting training according to claim 9, wherein the pressure sensor is electrically connected to the projector (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111294147.2A CN113854759B (en) | 2021-11-03 | 2021-11-03 | Screen-throwing type intelligent education blackboard for drawing training |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111294147.2A CN113854759B (en) | 2021-11-03 | 2021-11-03 | Screen-throwing type intelligent education blackboard for drawing training |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113854759A true CN113854759A (en) | 2021-12-31 |
| CN113854759B CN113854759B (en) | 2023-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111294147.2A Active CN113854759B (en) | 2021-11-03 | 2021-11-03 | Screen-throwing type intelligent education blackboard for drawing training |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114468584A (en) * | 2022-01-20 | 2022-05-13 | 胡烈尾 | Supporting table for indoor decoration |
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| CN113854759B (en) | 2023-04-14 |
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