CN113446476A - Projection arrangement is used in english teaching - Google Patents
Projection arrangement is used in english teaching Download PDFInfo
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- CN113446476A CN113446476A CN202110723003.8A CN202110723003A CN113446476A CN 113446476 A CN113446476 A CN 113446476A CN 202110723003 A CN202110723003 A CN 202110723003A CN 113446476 A CN113446476 A CN 113446476A
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- english teaching
- projection device
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- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 239000000428 dust Substances 0.000 claims description 24
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B17/00—Methods preventing fouling
- B08B17/02—Preventing deposition of fouling or of dust
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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
- F16M11/02—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
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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
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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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
- F16M11/22—Undercarriages with or without wheels with approximately constant height, e.g. with constant length of column or of legs
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Projection Apparatus (AREA)
Abstract
本发明公开了一种英语教学用投影装置，包括投影仪本体，所述投影仪本体上设置有夹持机构，所述夹持机构上设置有防尘机构，所述夹持机构上设置有复位机构，所述防尘机构上设置有升降机构，所述升降机构上设有横板；所述升降机构包括转盘、定位块、螺纹杆、齿板、滑轨、第一支撑块、传动杆、齿轮、连接板、活动杆和连接块，所述定位块固定安装在横板的上表面，所述定位块活动套接在螺纹杆的表面，所述转盘和螺纹杆的一端固定连接，所述螺纹杆的另一端螺纹贯穿齿板，所述滑轨固定安装在齿板的下端；通过移动板控制一组夹板的移动，使后期在对投影仪本体进行维修和更换时更加方便，不需要再去通过站在桌以上进行更换投影仪本体。
The invention discloses a projection device for English teaching, comprising a projector body, a clamping mechanism is arranged on the projector body, a dust-proof mechanism is arranged on the clamping mechanism, and a reset mechanism is arranged on the clamping mechanism The dust-proof mechanism is provided with a lifting mechanism, and the lifting mechanism is provided with a horizontal plate; the lifting mechanism includes a turntable, a positioning block, a threaded rod, a toothed plate, a sliding rail, a first support block, a transmission rod, A gear, a connecting plate, a movable rod and a connecting block, the positioning block is fixedly installed on the upper surface of the horizontal plate, the positioning block is movably sleeved on the surface of the threaded rod, the turntable and one end of the threaded rod are fixedly connected, the The other end of the threaded rod is threaded through the toothed plate, and the slide rail is fixedly installed at the lower end of the toothed plate; the movement of a group of splints is controlled by the moving plate, which makes it more convenient to repair and replace the projector body in the later stage, and no further To replace the projector body by standing above the table.
Description
Technical Field
The invention relates to the technical field of projection devices, in particular to a projection device for English teaching.
Background
A projector, also called a projector, is a device that can project images or videos onto a screen, and can be connected with a computer, a VCD, a DV, etc. through different interfaces to play corresponding video signals. It can be used for profile measurement by transmitted light, and also can be used for measuring the surface shape of a blind hole and observing the surface of a part by reflected light. To instrument and meter and clock and watch trade meeting occasion especially being suitable for, the present student's teaching has also quoted the projecting apparatus and has taught, but present projecting apparatus most all is fixed mounting on the ceiling, when needs are adjusted, need stand and just can adjust above the table, when later stage needs maintenance change, it is very inconvenient to dismantle, and the projecting apparatus all exposes outside, will be covered with the dust for a long time, lead to equipment internal circuit board to damage, the life of projecting apparatus has been reduced, for this reason we propose a projecting apparatus for english teaching and be used for solving above-mentioned problem.
Disclosure of Invention
The invention aims to provide a projection device for English teaching, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a projection device for English teaching comprises a projector body, wherein a clamping mechanism is arranged on the projector body, a dustproof mechanism is arranged on the clamping mechanism, a reset mechanism is arranged on the clamping mechanism, a lifting mechanism is arranged on the dustproof mechanism, and a transverse plate is arranged on the lifting mechanism;
the lifting mechanism comprises a turntable, a positioning block, a threaded rod, a toothed plate, a sliding rail, a first supporting block, a transmission rod, a gear, a connecting plate, a movable rod and a connecting block, the positioning block is fixedly arranged on the upper surface of the transverse plate, the positioning block is movably sleeved on the surface of the threaded rod, the rotary disc is fixedly connected with one end of the threaded rod, the other end of the threaded rod penetrates through the toothed plate in a threaded manner, the sliding rail is fixedly arranged at the lower end of the toothed plate, the sliding rail is in sliding fit with the inner part of the transverse plate, a group of first supporting blocks is fixedly arranged on the upper surface of the transverse plate, the transmission rod is rotatably arranged on a group of first supporting blocks, the gear is fixedly sleeved on the surface of the transmission rod, the gear is meshed with the toothed plate, one end of the transmission rod is fixedly connected with one end of the connecting plate, the lower end of the movable rod is rotatably connected with the other end of the connecting plate, and the upper end of the movable rod is rotatably connected with the connecting block.
Preferably, the transverse plate is provided with a sliding groove, the sliding rail is in sliding fit inside the sliding groove, and the lower end of the transverse plate is fixedly provided with two groups of supporting legs.
Preferably, the dustproof mechanism comprises a bottom plate and a dustproof cover, the connecting block is fixedly installed at the lower end of the bottom plate, and the dustproof cover is fixedly installed on the upper surface of the bottom plate.
Preferably, the dust cover is provided with a wire arranging opening, the bottom plate is provided with a placing groove, and the projector body and the placing groove are matched for use.
Preferably, the clamping mechanism comprises a second supporting block, a guide rod, a handle, a movable plate, a connecting rod and a clamping plate, the second supporting block is fixedly mounted on the upper surface of the dust cover, the guide rod is fixedly mounted in the middle of the second supporting block, the movable plate is slidably mounted at the upper end of the dust cover, the handle is fixedly mounted on the movable plate, the upper end of the connecting rod is slidably mounted on the guide rod, the lower end of the connecting rod movably penetrates through the dust cover and is fixedly connected with the clamping plate, and the clamping plate and the two ends of the projector body are in movable contact.
Preferably, a group of guide grooves are formed in the moving plate and distributed in a mirror image mode, and the connecting rods are movably matched inside the guide grooves.
Preferably, the reset mechanism comprises a fixed block and a spring, the fixed block is fixedly mounted on the upper surface of the dust cover, one end of the spring is fixedly connected with the fixed block, and the other end of the spring is fixedly connected with one side of the movable plate.
Preferably, the surfaces of a set of said clamping plates are filled with rubber pads.
Preferably, a group of telescopic rods is arranged at the lower end of the diagonal position of the bottom plate.
Compared with the prior art, the invention has the beneficial effects that:
1. the handle is held to move towards the direction far away from the guide rod, the movable plate is driven to move, the spring is compressed at the moment, elasticity is generated on the movable plate, along with the movement of the movable plate, the group of connecting rods can move back to back along the guide groove, so that the group of clamping plates are driven to move back, then the projector body is placed in the placing groove, the handle is opened, the spring resets to push the movable plate to move back, so that the group of connecting rods are driven to move relatively, at the moment, the group of clamping plates can tightly clamp the projector body, the movement of the group of clamping plates is controlled through the movable plate, the projector body is more convenient to maintain and replace at the later stage, and the projector body does not need to be replaced by standing above a table;
2. the rotary table is rotated, the rotary table can drive the threaded rod to rotate, so that the toothed plate is driven to move, the toothed plate can drive the gear to rotate when moving, then the transmission rod is driven to rotate, the connecting plate is driven to rotate through the transmission rod, then the movable rod is driven to rotate, so that the connecting block is driven to move upwards, the connecting block can drive the bottom plate to move upwards, so that the projector body is driven to move upwards, after the required height is adjusted, the rotary table is stopped to rotate, the height of the projector body can be adjusted through rotating the rotary table, the use is simpler and more convenient, and the overall practicability is improved;
3. the dust cover can prevent that a large amount of dusts from falling on the projecting apparatus body, avoids equipment to lead to life to reduce because of the dust.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the novel structure of the toothed plate of the present invention;
FIG. 3 is a schematic cross-sectional view of a dust boot configuration of the present invention;
FIG. 4 is a schematic diagram of a moving plate structure according to the present invention;
FIG. 5 is a schematic view of the bottom plate structure of the present invention;
FIG. 6 is a cross-sectional view of the cross plate structure of the present invention;
in the figure: 1. a projector body; 11. a transverse plate; 12. supporting legs; 13. a chute; 14. a telescopic rod; 2. a lifting mechanism; 20. a turntable; 21. positioning blocks; 22. a threaded rod; 23. a toothed plate; 24. a slide rail; 25. a first support block; 26. a transmission rod; 27. a gear; 28. a connecting plate; 29. a movable rod; 291. connecting blocks; 3. a dust-proof mechanism; 31. a base plate; 32. a dust cover; 33. a wire arranging port; 34. a placement groove; 4. a clamping mechanism; 41. a second support block; 42. a guide bar; 43. a handle; 44. moving the plate; 45. a connecting rod; 46. a splint; 47. a guide groove; 5. a reset mechanism; 51. a fixed block; 52. a spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a projection device for English teaching comprises a projector body 1, wherein a clamping mechanism 4 is arranged on the projector body 1, a dustproof mechanism 3 is arranged on the clamping mechanism 4, a reset mechanism 5 is arranged on the clamping mechanism 4, a lifting mechanism 2 is arranged on the dustproof mechanism 3, and a transverse plate 11 is arranged on the lifting mechanism 2;
the lifting mechanism 2 comprises a rotary disc 20, a positioning block 21, a threaded rod 22, a toothed plate 23, a sliding rail 24, a first supporting block 25, a transmission rod 26, a gear 27, a connecting plate 28, a movable rod 29 and a connecting block 291, wherein the positioning block 21 is fixedly mounted on the upper surface of the transverse plate 11, the positioning block 21 is movably sleeved on the surface of the threaded rod 22, one end of the rotary disc 20 is fixedly connected with the threaded rod 22, the other end of the threaded rod 22 penetrates through the toothed plate 23, the sliding rail 24 is fixedly mounted at the lower end of the toothed plate 23, the sliding rail 24 is in sliding fit inside the transverse plate 11, the first supporting block 25 is fixedly mounted on the upper surface of the transverse plate 11, the transmission rod 26 is rotatably mounted on a set of first supporting blocks 25, the gear 27 is fixedly sleeved on the surface of the transmission rod 26, the gear 27 is meshed with the toothed plate 23, one end of the transmission rod 26 is fixedly connected with one end of the connecting plate 28, the lower end of the movable rod 29 is rotatably connected with the other end of the connecting plate 28, the upper end of the movable rod 29 is rotatably connected with the connecting block 291, the rotary table 20 can drive the threaded rod 22 to rotate, so as to drive the toothed plate 23 to move, the toothed plate 23 moves to drive the gear 27 to rotate, then the transmission rod 26 is driven to rotate, the connecting plate 28 is driven to rotate through the transmission rod 26, and then the movable rod 29 is driven to rotate, so that the connecting block 291 is driven to move upwards.
As an embodiment of the present invention, the transverse plate 11 is provided with a sliding groove 13, the sliding rail 24 is slidably fitted inside the sliding groove 13, the toothed plate 23 can slide along the transverse plate 11 through the fit between the sliding groove 13 and the sliding rail 24, and the lower end of the transverse plate 11 is fixedly provided with two sets of supporting legs 12.
As an embodiment of the present invention, the dust-proof mechanism 3 includes a bottom plate 31 and a dust cover 32, the dust cover 32 can prevent dust from falling on the projector body 1, and prevent the service life of the device from decreasing due to dust, the connection block 291 is fixedly mounted at the lower end of the bottom plate 31, the dust cover 32 is fixedly mounted on the upper surface of the bottom plate 31, and the upward movement of the connection block 291 can drive the bottom plate 31 to move upward, thereby driving the projector body 1 to move upward.
In an embodiment of the present invention, the dust cover 32 is provided with a cable outlet 33, the connecting cable can pass through the cable outlet 33 and be connected to the computer, the bottom plate 31 is provided with a placement groove 34, the projector body 1 and the placement groove 34 are used in cooperation, and the placement groove 34 can limit the position of the projector body 1, thereby improving the stability of the device.
As an embodiment of the present invention, the clamping mechanism 4 includes a second supporting block 41, a guiding rod 42, a handle 43, a moving plate 44, a connecting rod 45 and a clamping plate 46, a group of the second supporting blocks 41 is fixedly installed on the upper surface of the dust cover 32, the guiding rod 42 is fixedly installed in the middle of the group of the second supporting blocks 41, the moving plate 44 is slidably installed at the upper end of the dust cover 32, the handle 43 is fixedly installed on the moving plate 44, the upper end of the group of the connecting rods 45 is slidably installed on the guiding rod 42, the lower end of the group of the connecting rods 45 movably penetrates through the dust cover 32 and is fixedly connected with the group of the clamping plate 46, the group of the clamping plate 46 is movably contacted with the two ends of the projector body 1, when in use, the handle 43 is firstly held to move towards the guiding rod 42 to drive the moving plate 44 to move, and with the moving plate 44, the group of the connecting rods 45 moves along the guiding groove 47 in a backward direction, because the set of connecting rods 45 is slidably mounted on the guide rods 42, the set of connecting rods 45 linearly moves back to back, thereby driving the set of clamping plates 46 to move back, and then the equipment is placed in the placing groove 34 and the handle 43 is released.
As an embodiment of the present invention, a group of guide grooves 47 is formed on the moving plate 44, the group of guide grooves 47 are distributed in a mirror image manner, the connecting rod 45 is movably fitted inside the guide grooves 47, and the connecting rod 45 can be driven to move through the guide grooves 47.
As an embodiment of the present invention, the reset mechanism 5 includes a fixed block 51 and a spring 52, the fixed block 51 is fixedly mounted on the upper surface of the dust cover 32, one end of the spring 52 is fixedly connected to the fixed block 51, the other end of the spring 52 is fixedly connected to one side of the moving plate 44, when the moving plate 44 moves, the spring 52 is stretched to generate an elastic force on the moving plate 44, and after the moving plate 44 is released, the spring 52 pulls the moving plate 44 to reset, so as to drive the set of connecting rods 45 to move relatively, so that the set of clamping plates 46 can tightly clamp the projector body 1 at this time.
As an embodiment of the present invention, the surface of one set of the clamping plates 46 is filled with a rubber pad, which can protect the equipment well.
In one embodiment of the present invention, a set of telescopic rods 14 is provided at the lower end of the bottom plate 31 at the diagonal position.
The working principle is as follows: before use, the handle 43 is held to move towards the direction far away from the guide rod 42, so that the moving plate 44 is driven to move, the spring 52 is compressed to generate elastic force on the moving plate 44, the group of connecting rods 45 can move back along the guide groove 47 along with the movement of the moving plate 44, and the group of connecting rods 45 are slidably mounted on the guide rod 42, so that the group of connecting rods 45 linearly move back to drive the group of clamping plates 46 to move back, then the projector body 1 is placed in the placing groove 34, the handle 43 is released, the spring 52 resets to push the moving plate 44 to move back, so that the group of connecting rods 45 are driven to move relatively, and at the moment, the group of clamping plates 46 can tightly clamp the projector body 1;
then, the rotating disc 20 is rotated, the rotating disc 20 can drive the threaded rod 22 to rotate, so as to drive the toothed plate 23 to move, the toothed plate 23 moves to drive the gear 27 to rotate, then the transmission rod 26 is driven to rotate, the transmission rod 26 drives the connecting plate 28 to rotate, then the movable rod 29 is driven to rotate, so as to drive the connecting block 291 to move upwards, the connecting block 291 drives the bottom plate 31 to move upwards, so as to drive the projector body 1 to move upwards, and after the height is adjusted to a required height, the rotating disc 20 stops rotating.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A projection device for English teaching comprises a projector body (1), and is characterized in that a clamping mechanism (4) is arranged on the projector body (1), a dustproof mechanism (3) is arranged on the clamping mechanism (4), a reset mechanism (5) is arranged on the clamping mechanism (4), a lifting mechanism (2) is arranged on the dustproof mechanism (3), and a transverse plate (11) is arranged on the lifting mechanism (2);
the lifting mechanism (2) comprises a rotary table (20), a positioning block (21), a threaded rod (22), a toothed plate (23), a sliding rail (24), a first supporting block (25), a transmission rod (26), a gear (27), a connecting plate (28), a movable rod (29) and a connecting block (291), the positioning block (21) is fixedly installed on the upper surface of the transverse plate (11), the positioning block (21) is movably sleeved on the surface of the threaded rod (22), one end of the rotary table (20) is fixedly connected with the threaded rod (22), the other end of the threaded rod (22) penetrates through the toothed plate (23), the sliding rail (24) is fixedly installed at the lower end of the toothed plate (23), the sliding rail (24) is in sliding fit with the transverse plate (11), the first supporting block (25) is fixedly installed on the upper surface of the transverse plate (11), the transmission rod (26) is rotatably installed on the first supporting block (25), the fixed surface of cup jointing at transfer line (26) of gear (27), gear (27) and pinion rack (23) meshing connection, the one end of transfer line (26) and the one end fixed connection of connecting plate (28), the lower extreme of movable rod (29) and the other end of connecting plate (28) rotate and are connected, the upper end and the connecting block (291) of movable rod (29) rotate and connect.
2. The projection device for english teaching of claim 1, characterized in that: the supporting device is characterized in that a sliding groove (13) is formed in the transverse plate (11), the sliding rail (24) is in sliding fit with the inside of the sliding groove (13), and two groups of supporting legs (12) are fixedly arranged at the lower end of the transverse plate (11).
3. The projection device for english teaching of claim 1, characterized in that: the dustproof mechanism (3) comprises a bottom plate (31) and a dustproof cover (32), the connecting block (291) is fixedly installed at the lower end of the bottom plate (31), and the dustproof cover (32) is fixedly installed on the upper surface of the bottom plate (31).
4. The projection device for english teaching of claim 3, characterized in that: the dustproof cover (32) is provided with a wire arranging opening (33), the bottom plate (31) is provided with a placing groove (34), and the projector body (1) and the placing groove (34) are matched for use.
5. The projection device for english teaching of claim 3, characterized in that: the clamping mechanism (4) comprises a second supporting block (41), a guide rod (42), a handle (43), a moving plate (44), a connecting rod (45) and a clamping plate (46), the second supporting block (41) is fixedly mounted on the upper surface of the dust cover (32), the guide rod (42) is fixedly mounted in the middle of the second supporting block (41), the moving plate (44) is slidably mounted at the upper end of the dust cover (32), the handle (43) is fixedly mounted on the moving plate (44), the upper end of the connecting rod (45) is slidably mounted on the guide rod (42), the lower end of the connecting rod (45) movably penetrates through the dust cover (32) and is fixedly connected with the clamping plate (46), and the clamping plate (46) and two ends of the projector body (1) are movably contacted.
6. The projection device for english teaching of claim 5, characterized in that: a group of guide grooves (47) are formed in the moving plate (44), the guide grooves (47) are distributed in a mirror image mode, and the connecting rod (45) is movably matched inside the guide grooves (47).
7. The projection device for english teaching of claim 5, characterized in that: the reset mechanism (5) comprises a fixed block (51) and a spring (52), the fixed block (51) is fixedly mounted on the upper surface of the dust cover (32), one end of the spring (52) is fixedly connected with the fixed block (51), and the other end of the spring (52) is fixedly connected with one side of the moving plate (44).
8. The projection device for english teaching of claim 5, characterized in that: the surfaces of a set of the clamping plates (46) are filled with rubber pads.
9. The projection device for english teaching of claim 3, characterized in that: the lower end of the diagonal position of the bottom plate (31) is provided with a group of telescopic rods (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110723003.8A CN113446476A (en) | 2021-06-28 | 2021-06-28 | Projection arrangement is used in english teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110723003.8A CN113446476A (en) | 2021-06-28 | 2021-06-28 | Projection arrangement is used in english teaching |
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| Publication Number | Publication Date |
|---|---|
| CN113446476A true CN113446476A (en) | 2021-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110723003.8A Pending CN113446476A (en) | 2021-06-28 | 2021-06-28 | Projection arrangement is used in english teaching |
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| CN (1) | CN113446476A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114609849A (en) * | 2022-03-18 | 2022-06-10 | 捌悦科技(杭州)有限公司 | Portable projection arrangement for exhibitions |
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| CN111140729A (en) * | 2019-11-20 | 2020-05-12 | 西安微城信息科技有限公司 | Projector convenient for adjusting throwing angle and operation method |
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| EP0183938A1 (en) * | 1984-12-07 | 1986-06-11 | International Business Machines Corporation | Counterbalanced, height adjustable load carrying apparatus |
| CN208080830U (en) * | 2017-12-18 | 2018-11-13 | 广州控智电子科技有限公司 | Adjustable one touch-control intelligence lectern |
| CN210329830U (en) * | 2019-04-04 | 2020-04-17 | 云和县华翎工业设计有限公司 | Table is placed with projecting apparatus to information and teaching of computer science |
| CN111140729A (en) * | 2019-11-20 | 2020-05-12 | 西安微城信息科技有限公司 | Projector convenient for adjusting throwing angle and operation method |
| CN112432032A (en) * | 2020-11-27 | 2021-03-02 | 郭连坤 | Intelligent equipment for shooting and collecting water quality surface environment |
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| CN114609849A (en) * | 2022-03-18 | 2022-06-10 | 捌悦科技(杭州)有限公司 | Portable projection arrangement for exhibitions |
| CN114609849B (en) * | 2022-03-18 | 2024-03-08 | 杭州智科飞创信息科技有限公司 | Portable projection arrangement for exhibitions |
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Application publication date: 20210928 |