CN110728884A - Language class subject writes teaching show shelf - Google Patents
Language class subject writes teaching show shelf Download PDFInfo
- Publication number
- CN110728884A CN110728884A CN201911064096.7A CN201911064096A CN110728884A CN 110728884 A CN110728884 A CN 110728884A CN 201911064096 A CN201911064096 A CN 201911064096A CN 110728884 A CN110728884 A CN 110728884A
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- Prior art keywords
- board
- display
- teaching
- language
- illuminating
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- 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.)
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Classifications
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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
- G09B19/00—Teaching not covered by other main groups of this subclass
-
- 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
- B43L1/004—Repeatedly-usable boards or tablets for writing or drawing with illuminating devices
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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
- B43L21/00—Blackboard or slate cleaning devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
-
- 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
- G09B5/04—Electrically-operated educational appliances with audible presentation of the material to be studied
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- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Entrepreneurship & Innovation (AREA)
- General Engineering & Computer Science (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a language discipline writing teaching display stand, belonging to the technical field of teaching equipment, and comprising a display board, a display board angle adjusting device and a display board protecting device, wherein the display board comprises a ground glass board and an illuminating board, the outer side of the display board is provided with a board frame, the illuminating board is uniformly distributed with a plurality of illuminating lamp tubes, the ground glass board is fixed on the outer surface of the illuminating board, the upper side and the lower side of the board frame are provided with sliding grooves, a board eraser is connected in the sliding grooves in a sliding way, the right ends of the board eraser and the ground glass board are provided with a return spring, so that the convenient and fast teaching display can be realized, the multi-angle adjustment can be realized, the students can watch conveniently and display smoothly, the display effect and the teaching efficiency are improved, in addition, the protective device is also provided for a user and the display board to shield rain, and the display board does not occupy space, and the problem that the display board cannot be effectively protected when the display board is used outdoors is effectively solved.
Description
Technical Field
The invention relates to the technical field of teaching equipment, in particular to a language subject writing teaching display rack.
Background
Language specials include chinese, business english, application english, travel english, business japanese, application japanese, travel japanese, application korean, application russian, application french, application german, application spanish, application vietnamese, application thai, application arabic, and application foreign. When language specialty science and education is carried out, a teaching display rack is needed for teaching display.
The show shelf can carry out the support body that demonstrates, is equipped with the show board usually on the support body, utilizes the show board to demonstrate. The existing display rack is simple in structure, cannot conveniently adjust the angle, and therefore influences the display effect, the existing display board is only provided with the display function generally and is not provided with the writing function, the teaching efficiency is also influenced, the display rack can only be used indoors, when the display rack is used outdoors, the display rack is single in function and is not provided with a protection device, the support body and a user cannot be effectively protected, the use occasion is restricted, and the modern teaching use requirement cannot be met.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a language subject writing teaching display rack, which can realize convenient and quick teaching display, can adjust multiple angles, is convenient for students to watch and display smoothly, improves the display effect and teaching efficiency, is provided with a protective device, shades the sun and rain for users and display boards, does not occupy space, and effectively solves the problem that the display boards cannot be effectively protected when the display boards are used outdoors.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A writing and teaching display frame for language disciplines comprises a display board, a display board angle adjusting device and a display board protecting device, wherein the display board comprises a ground glass board and an illuminating board, a board frame is arranged on the outer side of the display board, a plurality of illuminating lamp tubes are uniformly distributed on the illuminating board, the ground glass board is fixed on the outer surface of the illuminating board, sliding grooves are formed in the upper side and the lower side of the board frame, a board eraser is connected with the inside of each sliding groove in a sliding manner, a reset spring is arranged at the right end of the board eraser and the right end of the ground glass board, the display board angle adjusting device comprises a base, a rotating seat is arranged on the upper side of the base and is rotatably connected with the base through a rotating shaft, the display board protecting device comprises a connecting shaft which is fixed at the left end of the top of the board frame, a horizontal arm which can rotate by taking the connecting, a fan-shaped shielding layer is arranged between the horizontal arm and the side arm.
Furthermore, one side of the blackboard eraser, which points to the frosted glass plate, is provided with a frosted layer, the frosted layer is attached to the frosted glass plate, and one side of the blackboard eraser, which is far away from the frosted glass plate, is provided with a handle.
Furthermore, a lighting switch for controlling the lighting lamp tube to be turned on and off is further arranged on the left side wall of the plate frame.
Furthermore, a microphone and a sound box are further arranged on the plate frame and positioned on the right side of the display plate.
Furthermore, the upper surface of the base and the lower surface of the rotating base are correspondingly provided with roller grooves, and a plurality of rollers are arranged in the roller grooves.
Further, the upper surface of roating seat is equipped with two sets of electric lift pole, and wherein is equipped with the lift button that is used for controlling two sets of electric lift pole and goes up and down simultaneously on a set of electric lift pole's the outer wall, and is two sets of the top of electric lift pole is connected with the arc seat, there is the arc piece through guide rail sliding connection respectively on the arc seat, the arc piece with be equipped with fixed connection piece between the arc seat.
Further, both ends are connected with the bracing piece about the arc, every the top of bracing piece is equipped with the turning block, the inside of turning block is provided with the cavity, the turning block bottom is equipped with the blind hole, the cavity with the blind hole is linked together, the inside pearl that changes that is provided with of cavity, the top of bracing piece run through the blind hole and with the bottom fixed connection who changes the pearl, the top of turning block and the bottom fixed connection of sheet frame.
Furthermore, a wear-resistant rubber pad is arranged between the rotating bead and the inner wall of the cavity.
Further, the downside of base is equipped with a plurality of walking wheels, every all be equipped with the fixed button that is used for fixed walking wheel on the walking wheel.
Further, the rubber connecting ring is installed at one end of the horizontal arm, and an opening for the side arm to pass through is formed in the rubber connecting ring.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the frosted glass plate is arranged, so that a teacher can write characters on the frosted glass plate, and when the light is poor, the lighting lamp tube can be turned on through the lighting switch, the lighting lamp tube emits light, the frosted glass plate can be illuminated, the brightness of the frosted glass plate is effectively improved, and the frosted glass plate is convenient for students to watch and display smoothly; the blackboard eraser is arranged, the blackboard eraser is pulled to move, characters on the ground glass plate can be erased, convenience and rapidness are achieved, and after the characters are erased, the blackboard eraser can automatically reset to the right end of the ground glass plate under the action of the tension of the reset spring, so that the writing on the ground glass plate cannot be influenced, and the blackboard eraser is convenient to use.
() The microphone and the loudspeaker box are arranged, so that the sound of a teacher can be effectively amplified, and the exhibition work can be carried out more conveniently.
() The rotating block is arranged, the cavity is formed in the rotating block and is communicated with the blind hole formed in the bottom of the rotating block, the rotating bead is arranged in the cavity, the top end of the supporting rod penetrates through the blind hole and is fixedly connected with the bottom of the rotating bead, so that a teacher can conveniently pull the plate frame back and forth, and the front and back angle adjustment of the plate frame is realized;
the arc-shaped seat is arranged, and the arc-shaped piece is connected to the arc-shaped seat in a sliding manner through the guide rail, so that a user can conveniently pull the plate frame left and right, and the left and right angle adjustment of the plate frame is realized;
by arranging the rotating seat which is rotatably connected with the base through the rotating shaft, a user can conveniently rotate the rotating seat, so that the circumferential rotation of the plate frame is realized;
through setting up angle adjusting device, can conveniently be convenient for demonstrate around going on, control and rotate the regulation to the show board, be convenient for show, effectively improved the bandwagon effect, the effectual problem of angle modulation can not be carried out to current show board of having solved.
() Through setting up the walking wheel, the show board can carry out the high-speed (fast) movement through the walking wheel, after removing to suitable position, locks the walking wheel through the fixed button to fix the show shelf, improved the convenience of show shelf.
() The display board protection device is arranged, if the user needs to meet the conditions of bright sun and high illumination or rainy days in cloudy days, the horizontal arm can be rotated to be adjusted to a proper position, and then the side arm is opened, so that the fan-shaped shielding layer is unfolded to form a barrier to shade the user and the display board from the sun and rain; the display board can be used outdoors, and the problem that the display board cannot be effectively protected when the display board is used outdoors is effectively solved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a side view of a display board of the present invention;
FIG. 3 is a schematic view of a turning block according to the present invention;
fig. 4 is a top view of a display board protection device in the present invention.
The reference numbers in the figures illustrate:
1 ground glass plate, a plate frame, 2 lighting plates, 3 lighting lamp tubes, 4 eraser plates, 5 brush layers, 6 handles, 7 reset springs, 8 lighting switches, 9 microphones, 10 sound boxes, 11 bases, 12 rotating bases, 13 rotating shafts, 14 rollers, 15 electric lifting rods, 16 lifting buttons, 17 arc-shaped bases, 18 arc-shaped pieces, 19 fixed connecting blocks, 20 supporting rods, 21 rotating blocks, 22 rotating beads, 23 wear-resistant rubber pads, 24 traveling wheels, 241 fixed buttons, 25 connecting shafts, 26 horizontal arms, 27 side arms, 28 fan-shaped shielding layers and 29 rubber connecting rings.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
please refer to fig. 1 and 2, a writing teaching display frame for language subject, which comprises a display board, wherein the display board comprises a frosted glass board 1 and an illuminating board 2, a board frame 101 is arranged on the outer side of the display board, a plurality of illuminating lamps 3 are uniformly distributed on the illuminating board 2, the frosted glass board 1 is fixed on the outer surface of the illuminating board 2, sliding grooves are formed in the upper side and the lower side of the board frame 101, a board wiper 4 is connected in the sliding grooves in a sliding manner, a wiping burr layer 5 is arranged on one side of the board wiper 4, which points to the frosted glass board 1, the wiping burr layer 5 is attached to the frosted glass board 1, a handle 6 is arranged on one side of the board wiper 4, a reset spring 7 is arranged at the right end of the board wiper 5 and the frosted glass board 1, an illuminating switch 8 for controlling the illuminating lamps 3 to be turned on and off is further arranged on the left side wall of the board frame 101, and.
The frosted glass plate 1 is arranged, a teacher can write characters on the frosted glass plate 1, when light is poor, the lighting lamp tube 3 can be turned on through the lighting switch 8, the lighting lamp tube 3 emits light, the frosted glass plate can be illuminated, the brightness of the frosted glass plate 1 is effectively improved, and students can watch the frosted glass plate conveniently and display the frosted glass plate smoothly; be provided with the blackboard eraser 4, pulling blackboard eraser 4 removes, can erase the characters on the ground glass board 1, convenient and fast, the characters erase the back that finishes moreover, under reset spring 7's pulling force effect, blackboard eraser 4 can automatic re-setting to the right-hand member of ground glass board 1, therefore can not influence and write the characters on ground glass board 1, convenient to use sets up microphone 9 and audio amplifier 10, can effectually enlarge teacher's sound, the going on of the show work of being convenient for more.
Referring to fig. 1 and 3, a display board angle adjusting device is disposed at the lower side of a display board, the display board angle adjusting device includes a base 11, a rotary base 12 is disposed at the upper side of the base 11, the rotary base 12 is rotatably connected to the base 11 through a rotary shaft 13, roller grooves are correspondingly disposed on the upper surface of the base 11 and the lower surface of the rotary base 12, a plurality of rollers 14 are disposed in the roller grooves, two sets of electric lifting rods 15 are disposed on the upper surface of the rotary base 12, a lifting button 16 for controlling the two sets of electric lifting rods 15 to be lifted simultaneously is disposed on the outer wall of one set of electric lifting rod 15, arc bases 17 are connected to the top ends of the two sets of electric lifting rods 15, arc members 18 are slidably connected to the arc bases 17 through guide rails, fixed connection blocks 19 are disposed between the arc members 18 and the arc bases 17, support rods 20 are connected to the left and right ends of the arc members 18, every bracing piece 20's top is equipped with turning block 21, the inside of turning block 21 is provided with the cavity, turning block 21 bottom is equipped with the blind hole, the cavity is linked together with the blind hole, the inside pearl 22 that changes that is provided with of cavity, it is provided with wear-resisting cushion 23 to change between the inner wall of pearl 22 and cavity, bracing piece 20's top run through the blind hole and with the bottom fixed connection who changes pearl 22, the top of turning block 21 and the bottom fixed connection of sheet frame 101, downside at base 11 is equipped with a plurality of walking wheels 24 that are used for promoting the show shelf removal, all be equipped with the fixed button 241 that is used for fixed walking wheel 24 on every walking wheel 24.
The rotating block 21 is arranged on the lower side of the display board, the cavity is formed in the rotating block 21 and is communicated with the blind hole formed in the bottom of the rotating block 21, the rotating bead 22 is arranged in the cavity, and the top end of the supporting rod 20 penetrates through the blind hole and is fixedly connected with the bottom of the rotating bead 22, so that a teacher can conveniently pull the board frame 101 forwards and backwards, and the front and back angle adjustment of the board frame 101 is realized; the arc-shaped seat 17 is arranged, and the arc-shaped part 18 is connected to the arc-shaped seat 17 in a sliding manner through the guide rail, so that a user can pull the plate frame 101 left and right conveniently, and the left and right angle adjustment of the plate frame 101 is realized; by arranging the rotating seat 12 and rotationally connecting the rotating seat 12 with the base 11 through the rotating shaft 13, a user can conveniently rotate the rotating seat 12, so that the circumferential rotation of the plate frame 101 is realized; through the turning block 21 that sets up, change pearl 22, arc seat 17, arc 18 and roating seat 12, can conveniently adjust around going on, controlling and rotating of show board, be convenient for demonstrate, effectively improved the bandwagon effect, the effectual current show shelf of having solved can not carry out the problem of angle modulation. Through setting up walking wheel 24, the show board can carry out the high-speed (fast) movement through walking wheel 24, after removing to suitable position, locks walking wheel 24 through fixed button 241 to fix the show shelf, improved the convenience of show shelf.
Referring to fig. 1 and 4, a display board protection device is arranged on the upper side of the display board, the display board protection device comprises a connecting shaft 25, the connecting shaft 12 is fixed at the left end of the top of the board frame 101, a horizontal arm 26 capable of rotating by taking the connecting shaft as an axis is installed on the connecting shaft 25, a side arm 27 is hinged on the horizontal arm 26, a fan-shaped shielding layer 28 is arranged between the horizontal arm 26 and the side arm 27, a rubber connecting ring 29 is installed at one end of the horizontal arm 26, and an opening for the side arm 27 to pass through is formed in the rubber connecting ring 29; the display board protection device is arranged, if the display board protection device needs to meet the conditions of sunny and high-light or rainy days in cloudy days, the horizontal arm 26 can be rotated to be adjusted to a proper position, and then the side arm 27 is opened, so that the fan-shaped shielding layer 28 is unfolded to form a barrier to shade the sun and rain for a user and the display board, after the display board protection device is used, the side arm 27 can be folded, the side arm 27 is held through the rubber connecting ring 29, the occupied space is avoided, and the use is convenient; the display board can be used outdoors, and the problem that the display board cannot be effectively protected when the display board is used outdoors is effectively solved.
The working principle is as follows: when the display rack is used, the fixing buttons 241 on the traveling wheels 24 are loosened, then the display rack is pushed to move integrally, and when the display rack is moved to a proper position, the fixing buttons 241 are fastened to fix the display rack integrally, so that the display rack is prevented from sliding; a teacher writes characters on the ground glass plate 1 to display the characters, and when the light is poor, the lighting lamp tube 3 is turned on through the lighting switch 8, the lighting lamp tube 3 emits light, and the ground glass plate can be illuminated; after writing, the blackboard eraser 4 is pulled to move back and forth, characters on the ground glass plate 1 are erased, the characters are written again, and display is continued.
When the explanation is needed, the microphone 9 and the sound box 10 are used for displaying and explaining; when the front and rear inclination angles need to be adjusted, the front and rear angle adjustment of the plate frame 101 can be realized by pulling the plate frame 101 front and rear; the plate frame 101 is pulled left and right, so that the arc-shaped part 18 moves on the arc-shaped seat 17, and left and right angle adjustment can be realized.
When the display rack is used outdoors and needs to be shaded and rain-proof, the horizontal arm 26 is rotated and adjusted to a proper position, and then the side arm 27 is opened, so that the fan-shaped shielding layer 28 is unfolded to form a barrier; after use, the side arm 27 is closed and the side arm 27 is held by a rubber coupling ring 29.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a language class discipline writes teaching show shelf, includes show board, show board angular adjustment device and show board protection device, its characterized in that: the display board comprises a ground glass board (1) and an illuminating board (2), a board frame (101) is arranged on the outer side of the display board, a plurality of illuminating lamp tubes (3) are uniformly distributed on the illuminating board (2), the ground glass board (1) is fixed on the outer surface of the illuminating board (2), sliding grooves are formed in the upper side and the lower side of the board frame (101), a blackboard eraser (4) is connected in each sliding groove in a sliding mode, a reset spring (7) is arranged at the right end of each blackboard eraser (5) and the right end of the ground glass board (1), the display board angle adjusting device comprises a base (11), a rotating seat (12) is arranged on the upper side of the base (11), the rotating seat (12) is rotatably connected with the base (11) through a rotating shaft (13), the display board protecting device comprises a connecting shaft (25), the connecting shaft (12) is fixed at the left end of the top of the board frame (101), a horizontal arm (26) capable of rotating by taking, the horizontal arm (26) is hinged with a side arm (27), and a fan-shaped shielding layer (28) is arranged between the horizontal arm (26) and the side arm (27).
2. The display stand for teaching of language discipline writing according to claim 1, wherein: one side of the blackboard eraser (4) pointing to the frosted glass plate (1) is provided with a frosted layer (5), the frosted layer (5) is attached to the frosted glass plate (1), and one side of the blackboard eraser (4) far away from the frosted glass plate (1) is provided with a handle (6).
3. The display stand for teaching of language discipline writing according to claim 1, wherein: and a lighting switch (8) for controlling the lighting lamp tube (3) to be turned on and off is further arranged on the left side wall of the plate frame (101).
4. The display stand for teaching of language discipline writing according to claim 1, wherein: and a microphone (9) and a sound box (10) are also arranged on the plate frame (101) and positioned on the right side of the display plate.
5. The display stand for teaching of language discipline writing according to claim 1, wherein: the upper surface of the base (11) and the lower surface of the rotating base (12) are correspondingly provided with roller grooves, and a plurality of rollers (14) are arranged in the roller grooves.
6. The display stand for teaching of language discipline writing according to claim 1, wherein: the upper surface of roating seat (12) is equipped with two sets of electric lift pole (15), and wherein is equipped with on the outer wall of a set of electric lift pole (15) and is used for controlling lift button (16) that two sets of electric lift pole (15) go up and down simultaneously, and is two sets of the top of electric lift pole (15) is connected with arc seat (17), there are arc spare (18) on arc seat (17) through guide rail sliding connection respectively, arc spare (18) with be equipped with fixed connection piece (19) between arc seat (17).
7. The display stand for teaching of language discipline writing according to claim 6, wherein: both ends are connected with bracing piece (20), every about arc (18) the top of bracing piece (20) is equipped with turning block (21), the inside of turning block (21) is provided with the cavity, turning block (21) bottom is equipped with the blind hole, the cavity with the blind hole is linked together, the inside pearl (22) that changes that is provided with of cavity, the top of bracing piece (20) run through the blind hole and with the bottom fixed connection who changes pearl (22), the top of turning block (21) and the bottom fixed connection of sheet frame (101).
8. The display stand for teaching of language discipline writing according to claim 7, wherein: and a wear-resistant rubber pad (23) is arranged between the rotating bead (22) and the inner wall of the cavity.
9. The display stand for teaching of language discipline writing according to claim 1, wherein: the downside of base (11) is equipped with a plurality of walking wheels (24), every all be equipped with on walking wheel (24) and be used for fixed walking wheel (24) fixed button (241).
10. The display stand for teaching of language discipline writing according to claim 1, wherein: the rubber connecting ring (29) is installed at one end of the horizontal arm (26), and an opening for the side arm (27) to penetrate through is formed in the rubber connecting ring (29).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201911064096.7A CN110728884A (en) | 2019-11-04 | 2019-11-04 | Language class subject writes teaching show shelf |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201911064096.7A CN110728884A (en) | 2019-11-04 | 2019-11-04 | Language class subject writes teaching show shelf |
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CN110728884A true CN110728884A (en) | 2020-01-24 |
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CN201911064096.7A Withdrawn CN110728884A (en) | 2019-11-04 | 2019-11-04 | Language class subject writes teaching show shelf |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111994290A (en) * | 2020-09-03 | 2020-11-27 | 清华大学合肥公共安全研究院 | Pop-up protection device, unmanned aerial vehicle and control system |
-
2019
- 2019-11-04 CN CN201911064096.7A patent/CN110728884A/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111994290A (en) * | 2020-09-03 | 2020-11-27 | 清华大学合肥公共安全研究院 | Pop-up protection device, unmanned aerial vehicle and control system |
CN111994290B (en) * | 2020-09-03 | 2022-04-01 | 清华大学合肥公共安全研究院 | Pop-up protection device, unmanned aerial vehicle and control system |
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Application publication date: 20200124 |