CN113129704B - A supplementary teaching equipment of full overlay type english for english teaching - Google Patents
A supplementary teaching equipment of full overlay type english for english teaching Download PDFInfo
- Publication number
- CN113129704B CN113129704B CN202110461837.6A CN202110461837A CN113129704B CN 113129704 B CN113129704 B CN 113129704B CN 202110461837 A CN202110461837 A CN 202110461837A CN 113129704 B CN113129704 B CN 113129704B
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- english
- fixedly connected
- blocks
- teaching
- sliding
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
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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
- G09B19/06—Foreign languages
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- 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
- F16M11/20—Undercarriages with or without wheels
- F16M11/2085—Undercarriages with or without wheels comprising means allowing sideward adjustment, i.e. left-right translation of the head relatively to the undercarriage
-
- 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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- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- Entrepreneurship & Innovation (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a full-coverage type English auxiliary teaching device for English teaching, wherein the inner wall of the lower end of a support box is connected with two symmetrically-arranged sliding blocks in a sliding mode, the upper ends of the two sliding blocks are connected with screw rods in a rotating mode, the upper surface of the support box is connected with two symmetrically-arranged moving blocks in a penetrating mode in a sliding mode, the upper ends of the two screw rods penetrate through the upper surfaces of the two moving blocks and are respectively connected with the two moving blocks in a rotating mode, threaded sleeves respectively located at the upper ends of the two moving blocks are sleeved on the outer sides of the two screw rods in a threaded mode, guide supporting plates are fixedly connected to the front side of the lower end of the threaded sleeve on the left side and the rear side of the lower end of the threaded sleeve on the right side, and display panels are fixedly connected to the upper ends of the two guide supporting plates. The invention has very strong design linkage, can lift and pull the two display panels upwards at the same time, has very good display effect, has very large coverage area and thus has good teaching effect.
Description
Technical Field
The invention relates to the technical field of teaching equipment, in particular to full-coverage type English auxiliary teaching equipment for English teaching.
Background
English teaching is an indispensable subject in the teaching, english learns to improve our social ability, for the advanced technology of learning abroad, english has become one of must course, teaching board is indispensable teaching equipment at english teaching in-process, current english teaching board still has certain defect when using, it is little to cover the display area, can not let all students can both see the teaching knowledge clearly, therefore can influence the effect of teaching, and current teaching board highly also be convenient for adjust, thereby teaching board can not have a good show angle when learning, can influence the progress of study, in view of above defect, consequently, we propose the supplementary teaching equipment of full overlay type english that is used for english teaching and solve above-mentioned problem.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems existing in the background technology, the coverage display area is small, all students cannot see teaching knowledge clearly, so that the teaching effect can be influenced, and the height of the existing teaching board is not convenient to adjust, so that the teaching board cannot have a good display angle during learning, and the learning progress can be influenced.
(II) technical scheme
The invention provides a full-coverage English auxiliary teaching device for English teaching, which comprises a support box, wherein the inner wall of the lower end of the support box is slidably connected with two symmetrically arranged slide blocks, the upper ends of the two slide blocks are rotatably connected with screw rods, the upper surface of the support box is slidably connected with two symmetrically arranged movable blocks in a penetrating manner, the upper ends of the two screw rods penetrate through the upper surfaces of the two movable blocks and are respectively and rotatably connected with the two movable blocks, the outer sides of the two screw rods are respectively and threadedly sleeved with threaded sleeves respectively positioned at the upper ends of the two movable blocks, guide support plates are respectively and fixedly connected to the front sides of the lower ends of the threaded sleeves on the left side and the rear sides of the lower ends of the threaded sleeves on the right side, display plates are respectively and fixedly connected to the upper ends of the two guide support plates, and the ends of the two display plates, which are far away from each other, are respectively and fixedly connected with the surfaces of the two threaded sleeves which are close to each other, the supporting box is rotatably connected with a transversely arranged bidirectional screw rod, the outer circumferential surface of the bidirectional screw rod is in threaded connection with two symmetrically arranged threaded sleeve blocks, and the two threaded sleeve blocks are fixedly connected with the lower ends of the two moving blocks.
Preferably, the inner wall of the lower end of the support box is provided with a sliding groove for the two sliding blocks to slide left and right, the upper ends of the two sliding blocks are fixedly connected with bearings, and the lower ends of the two screw rods are respectively fixedly connected with the inner rings of the two bearings.
Preferably, the upper surface of the supporting box is provided with a transversely arranged guiding through groove, and the two moving blocks are both connected with the guiding through groove in a sliding manner.
Preferably, rectangular grooves are formed in the surfaces, close to each other, of the two guide supporting plates, connecting blocks are fixedly connected to the surfaces, close to each other, of the ends, far away from each other, of the two supporting plates, the connecting blocks are connected with the rectangular grooves on the front side in a sliding mode, and the connecting blocks on the rear side are connected with the rectangular grooves on the front side in a sliding mode.
Preferably, a driving motor is fixedly mounted on the left surface of the support box, an output shaft of the driving motor penetrates through the left surface of the support box and is fixedly connected with the left end of the bidirectional screw, and the driving motor is electrically connected with an external power supply and an external control switch.
Preferably, the lower end four corners department of supporting box all fixedly connected with locking universal wheel, the upper end front side fixedly connected with storing box of supporting box.
Preferably, the lower ends of the two screws are fixedly sleeved with gears, the inside of the supporting box is fixedly connected with a transversely arranged rack, and the two gears are in meshing transmission with the rack.
Compared with the prior art, the invention has the beneficial effects that:
the two-way screw rod is driven to rotate by the rotation of the output shaft of the driving motor, the two screw rod drives the two thread sleeve blocks to move away from each other by the rotation of the two-way screw rod, and the two display panels are driven to move away from each other by the rotation of the two screw rod, so that the two display panels are opened, the display area is greatly increased, when the two screw rods move away from each other, the two gears are meshed with the rack for transmission, so that the two screw rods are driven to rotate, and finally the two display panels are driven to move upwards, so that the display device has a proper height, and the display effect is improved.
Drawings
FIG. 1 is a schematic perspective view of a fully-covered English auxiliary teaching device for English teaching according to the present invention;
FIG. 2 is a schematic diagram of an internal structure of a fully-covered English auxiliary teaching device for English teaching according to the present invention;
fig. 3 is a schematic structural diagram of two guide support plates in the full-coverage english teaching auxiliary equipment for english teaching according to the present invention.
In the figure: the device comprises a supporting box 1, a bidirectional screw rod 2, a guide through groove 3, a driving motor 4, a moving block 5, a guide supporting plate 6, a threaded sleeve 7, a display panel 8, a sliding groove 9, a gear 10, a sliding block 11, a threaded sleeve block 12, a screw rod 13, a rack 14, a connecting block 15, a rectangular groove 16, a storage box 17 and a bearing 18.
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.
As shown in FIGS. 1-3, the full-coverage English auxiliary teaching device for English teaching provided by the invention comprises a support box 1, locking universal wheels are fixedly connected at four corners of the lower end of the support box 1, a storage box 17 is fixedly connected at the front side of the upper end of the support box 1, two symmetrically arranged slide blocks 11 are slidably connected with the inner wall of the lower end of the support box 1, screw rods 13 are rotatably connected with the upper ends of the two slide blocks 11, two symmetrically arranged movable blocks 5 are slidably connected with the upper surface of the support box 1 in a penetrating manner, a transversely arranged guide through groove 3 is arranged on the upper surface of the support box 1, the two movable blocks 5 are slidably connected with the guide through groove 3, the upper ends of the two screw rods 13 penetrate through the upper surfaces of the two movable blocks 5 and are rotatably connected with the two movable blocks 5 respectively, and threaded sleeves 7 respectively positioned at the upper ends of the two movable blocks 5 are respectively sleeved on the outer sides of the two screw rods 13 in a threaded manner, the utility model discloses a two-way screw rod of supporting box 1, the equal fixedly connected with guide support plate 6 of lower extreme front side of left side threaded sleeve 7 and the lower extreme rear side of right side threaded sleeve 7, the equal fixedly connected with display panel 8 in upper end of two guide support plate 6, the one end that two display panels 8 kept away from each other is connected with the fixed surface that two threaded sleeve 7 are close to each other respectively, the internal rotation of supporting box 1 is connected with horizontal two-way screw rod 2 that sets up, two threaded sleeve 12 of two-way screw rod 2's outer periphery spiro union has two symmetrical screw sleeve pieces 12 that set up, the lower extreme fixed connection of two threaded sleeve pieces 12 and two movable blocks 5, the left fixed surface of supporting box 1 installs driving motor 4, driving motor 4's output shaft runs through the left surface of supporting box 1 and with the left end fixed connection of two-way screw rod 2, driving motor 4 and outside power and outside control switch electric connection.
The inner wall of the lower end of the support box 1 is provided with a sliding chute 9 for the two sliding blocks 11 to slide left and right, the upper ends of the two sliding blocks 11 are fixedly connected with bearings 18, and the lower ends of the two screw rods 13 are fixedly connected with the inner rings of the two bearings 18 respectively.
The lower extreme of two screw rods 13 all fixedly cup joints gear 10, and the inside fixedly connected with of supporting box 1 transversely sets up rack 14, and two gear 10 all mesh with rack 14 and drive.
The working principle is as follows: when the display device works, the driving motor 4 is turned on, an output shaft of the driving motor 4 rotates to drive the bidirectional screw 2 to rotate, the bidirectional screw 2 rotates to drive the two thread sleeve blocks 12 to move away from each other, the two thread sleeve blocks 12 move away from each other to drive the two movable blocks 5 to move away from each other, the two movable blocks 5 move away from each other to drive the two screw rods 13 to move away from each other, the two screw rods 13 move away from each other to drive the two thread sleeves 7 to move away from each other, the two thread sleeves 7 move away from each other to drive the two display panels 8 to move away from each other, and therefore the two display panels 8 are opened; when the two screw rods 13 move away from each other, the two gears 10 are meshed with the racks 14 for transmission, so that the two screw rods 13 are driven to rotate, the threads of the two screw rods 13 are reversely arranged, the two screw rods 13 rotate to drive the two screw sleeves 7 to move upwards simultaneously, and finally the two display plates 8 are driven to move upwards, so that the two display plates have a proper height, the guide support plates 6 are fixedly connected to the mutually close sides of the two screw sleeves 7, the two guide support plates 6 are connected with each other in a sliding mode through the two connecting blocks 15, so that the two screw sleeves 7 can be guided, and only the two screw sleeves 7 can move upwards or downwards.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A full-coverage English auxiliary teaching device for English teaching comprises a supporting box (1) and is characterized in that the inner wall of the lower end of the supporting box (1) is connected with two symmetrically-arranged sliding blocks (11) in a sliding mode, the upper ends of the two sliding blocks (11) are connected with screw rods (13) in a rotating mode, the upper surface of the supporting box (1) is connected with two symmetrically-arranged moving blocks (5) in a penetrating mode, the upper ends of the two screw rods (13) penetrate through the upper surfaces of the two moving blocks (5) and are respectively connected with the two moving blocks (5) in a rotating mode, threaded sleeves (7) respectively located at the upper ends of the two moving blocks (5) are sleeved on the outer sides of the two screw rods (13) in a threaded mode, guide supporting plates (6) are fixedly connected to the front sides of the lower ends of the threaded sleeves (7) on the left side and the rear sides of the lower ends of the threaded sleeves (7) on the right side, the upper ends of the two guide supporting plates (6) are fixedly connected with display plates (8), the ends, far away from each other, of the two display plates (8) are fixedly connected with the surfaces, close to each other, of the two threaded sleeves (7) respectively, a bidirectional screw (2) which is transversely arranged is rotationally connected in the supporting box (1), the outer circumferential surface of the bidirectional screw (2) is in threaded connection with two symmetrically-arranged thread sleeve blocks (12), the two thread sleeve blocks (12) are fixedly connected with the lower ends of the two moving blocks (5), rectangular grooves (16) are formed in the surfaces, close to each other, of the two guide support plates (6), connecting blocks (15) are fixedly connected to the surfaces, close to each other, of the ends, far away from each other, of the two guide support plates (6), the connecting blocks (15) on the front side are in sliding connection with the rectangular grooves (16) on the rear side, and the connecting blocks (15) on the rear side are in sliding connection with the rectangular grooves (16) on the front side.
2. The full-coverage English auxiliary teaching equipment for English teaching according to claim 1, wherein the inner wall of the lower end of the support box (1) is provided with a sliding groove (9) for the two sliding blocks (11) to slide left and right, the upper ends of the two sliding blocks (11) are fixedly connected with bearings (18), and the lower ends of the two screws (13) are respectively fixedly connected with the inner rings of the two bearings (18).
3. The fully-covered English auxiliary teaching device for English teaching according to claim 1, wherein the upper surface of the supporting box (1) is provided with a transversely-arranged guiding through groove (3), and both of the moving blocks (5) are slidably connected with the guiding through groove (3).
4. The full-coverage English auxiliary teaching equipment for English teaching according to claim 1, wherein a driving motor (4) is fixedly installed on the left surface of the supporting box (1), an output shaft of the driving motor (4) penetrates through the left surface of the supporting box (1) and is fixedly connected with the left end of the bidirectional screw (2), and the driving motor (4) is electrically connected with an external power supply and an external control switch.
5. The full-coverage English auxiliary teaching equipment for English teaching according to claim 1, wherein locking universal wheels are fixedly connected to four corners of the lower end of the support box (1), and a storage box (17) is fixedly connected to the front side of the upper end of the support box (1).
6. The fully-covered English auxiliary teaching device for English teaching as claimed in claim 1, wherein gears (10) are fixedly sleeved on the lower ends of the two screws (13), a transversely-arranged rack (14) is fixedly connected to the inside of the supporting box (1), and the two gears (10) are in meshing transmission with the rack (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110461837.6A CN113129704B (en) | 2021-04-27 | 2021-04-27 | A supplementary teaching equipment of full overlay type english for english teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110461837.6A CN113129704B (en) | 2021-04-27 | 2021-04-27 | A supplementary teaching equipment of full overlay type english for english teaching |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113129704A CN113129704A (en) | 2021-07-16 |
| CN113129704B true CN113129704B (en) | 2022-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110461837.6A Expired - Fee Related CN113129704B (en) | 2021-04-27 | 2021-04-27 | A supplementary teaching equipment of full overlay type english for english teaching |
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| Country | Link |
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| CN (1) | CN113129704B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113674587A (en) * | 2021-08-20 | 2021-11-19 | 浙江广厦建设职业技术大学 | Teaching management device with student information acquisition function |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5134731A (en) * | 1991-02-07 | 1992-08-04 | Invacare Corporation | Adjustable bed having adjustable height legs with synchronization feature |
| CN206282483U (en) * | 2016-12-02 | 2017-06-27 | 谢晓芳 | A kind of English teaching aid |
| CN206610504U (en) * | 2017-03-23 | 2017-11-03 | 沈阳理工大学 | Novel computer science and technology realia stores exhibiting device |
| CN108272264A (en) * | 2018-04-08 | 2018-07-13 | 江苏海事职业技术学院 | A kind of English teaching ancillary equipment |
| CN207914078U (en) * | 2018-01-05 | 2018-09-28 | 深圳市深科达智能装备股份有限公司 | The lifting locating platform of the rotating turret of placement display panel |
| CN110067916A (en) * | 2019-05-24 | 2019-07-30 | 郑州幼儿师范高等专科学校 | A kind of multi-modal English teaching device for English teaching |
| CN209999958U (en) * | 2019-04-16 | 2020-01-31 | 山东电子职业技术学院 | teaching aid with adjustable height for English teaching |
| CN210574346U (en) * | 2019-01-25 | 2020-05-19 | 济宁市技师学院 | Portable display device of computer teaching |
| CN111276025A (en) * | 2020-04-03 | 2020-06-12 | 山东经贸职业学院 | Special teaching auxiliary assembly of business administration |
| CN210925069U (en) * | 2019-11-25 | 2020-07-03 | 吉林工程技术师范学院 | Auxiliary teaching device for planar design teaching |
| CN212990353U (en) * | 2020-08-05 | 2021-04-16 | 渤海大学 | Multimode teaching device of english teaching |
| CN212990433U (en) * | 2020-10-29 | 2021-04-16 | 裘群 | English teaching is with teaching board |
-
2021
- 2021-04-27 CN CN202110461837.6A patent/CN113129704B/en not_active Expired - Fee Related
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5134731A (en) * | 1991-02-07 | 1992-08-04 | Invacare Corporation | Adjustable bed having adjustable height legs with synchronization feature |
| CN206282483U (en) * | 2016-12-02 | 2017-06-27 | 谢晓芳 | A kind of English teaching aid |
| CN206610504U (en) * | 2017-03-23 | 2017-11-03 | 沈阳理工大学 | Novel computer science and technology realia stores exhibiting device |
| CN207914078U (en) * | 2018-01-05 | 2018-09-28 | 深圳市深科达智能装备股份有限公司 | The lifting locating platform of the rotating turret of placement display panel |
| CN108272264A (en) * | 2018-04-08 | 2018-07-13 | 江苏海事职业技术学院 | A kind of English teaching ancillary equipment |
| CN210574346U (en) * | 2019-01-25 | 2020-05-19 | 济宁市技师学院 | Portable display device of computer teaching |
| CN209999958U (en) * | 2019-04-16 | 2020-01-31 | 山东电子职业技术学院 | teaching aid with adjustable height for English teaching |
| CN110067916A (en) * | 2019-05-24 | 2019-07-30 | 郑州幼儿师范高等专科学校 | A kind of multi-modal English teaching device for English teaching |
| CN210925069U (en) * | 2019-11-25 | 2020-07-03 | 吉林工程技术师范学院 | Auxiliary teaching device for planar design teaching |
| CN111276025A (en) * | 2020-04-03 | 2020-06-12 | 山东经贸职业学院 | Special teaching auxiliary assembly of business administration |
| CN212990353U (en) * | 2020-08-05 | 2021-04-16 | 渤海大学 | Multimode teaching device of english teaching |
| CN212990433U (en) * | 2020-10-29 | 2021-04-16 | 裘群 | English teaching is with teaching board |
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| CN113129704A (en) | 2021-07-16 |
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