CN210800613U - Fixing device of teaching projecting apparatus - Google Patents
Fixing device of teaching projecting apparatus Download PDFInfo
- Publication number
- CN210800613U CN210800613U CN201920613727.5U CN201920613727U CN210800613U CN 210800613 U CN210800613 U CN 210800613U CN 201920613727 U CN201920613727 U CN 201920613727U CN 210800613 U CN210800613 U CN 210800613U
- Authority
- CN
- China
- Prior art keywords
- roller bearing
- tapered roller
- fixing device
- gear
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Pivots And Pivotal Connections (AREA)
Abstract
The utility model discloses a fixing device of teaching projecting apparatus, including roof and box, the both sides welding of box has the round pin post, rotates between two round pin posts and is connected with the mounting bracket of U-shaped, the side of mounting bracket is equipped with arc waist hole, the welding of upside center department of mounting bracket has the pivot, install first gear in the pivot, the downside fixedly connected with installation cover of roof, the inner chamber joint of installation cover has tapered roller bearing, the upper end of pivot run through tapered roller bearing and rather than inner circle transition fit, the circular shape baffle of upper end fixedly connected with of pivot, the downside and the contact of tapered roller bearing of baffle, servo motor is installed to the downside of roof, install the second gear on servo motor's the output shaft, second gear and first gear engagement. The utility model discloses a position angle of projecting apparatus can be adjusted in the operation of control motor, and it is convenient to use.
Description
Technical Field
The utility model relates to a projection equipment technical field specifically is a fixing device of teaching projecting apparatus.
Background
In modern teaching, a large amount of audio-visual education multimedia teaching is often used, and the teaching mode can more vividly show teaching contents and make students more easy to learn and receive. As an audio-visual education programme equipment, the projecting apparatus is used on a large scale, the existing projecting apparatus is generally fixedly installed on a ceiling, when in use, due to the reasons of moving of a projection screen and the like, a projection surface deviates from the projection screen, partial characters or images are projected on a wall and are unclear, and the projecting apparatus is higher and is inconvenient to adjust, so that the use defect exists.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fixing device of teaching projecting apparatus to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fixing device of teaching projecting apparatus, includes roof and box, the both sides welding of box has the round pin post, rotates the mounting bracket that is connected with the U-shaped between two round pin posts, the side of mounting bracket is equipped with arc waist hole, the upside center department welding of mounting bracket has the pivot, install first gear in the pivot, the downside fixedly connected with installation cover of roof, the inner chamber joint of installation cover has tapered roller bearing, the upper end of pivot run through tapered roller bearing and rather than inner circle transition fit, the circular shape baffle of upper end fixedly connected with of pivot, the downside and the contact of tapered roller bearing of baffle, servo motor is installed to the downside of roof, install the second gear on servo motor's the output shaft, second gear and first gear engagement.
Preferably, a rectangular window is arranged on the front side of the box body, and a cover plate is mounted on the rear side of the box body through bolts.
Preferably, pins are welded on two sides of the box body, penetrate through the arc-shaped waist holes and are in sliding connection with the arc-shaped waist holes, and the front ends of the pins are provided with threads and are in threaded connection with nuts.
Preferably, the arc waist hole uses the pin column as a circle center, and the radian of the arc waist hole is 30 degrees.
Preferably, the outer ring of the tapered roller bearing is in transition fit with the inner wall of the mounting sleeve, a round hole is formed in the lower side of the mounting sleeve, and the rotating shaft penetrates through the round hole.
Preferably, the top plate is of a rectangular plate structure, and four corners of the top plate are provided with circular mounting holes.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses install the projecting apparatus in the box, the both sides of box are connected with the mounting bracket, and the top fixedly connected with pivot of mounting bracket, the pivot can be relative the roof rotatory to the pivot can be rotated by the servo motor drive, thereby realizes adjusting projecting apparatus azimuth angle's purpose. Therefore the utility model discloses a position angle of projecting apparatus can be adjusted in the operation of control motor, and it is convenient to use.
Drawings
FIG. 1 is a schematic side view of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1 according to the present invention;
fig. 3 is a schematic structural view of the mounting sleeve of the present invention.
In the figure: 1. a top plate; 2. a box body; 3. a cover plate; 4. a window; 5. a mounting frame; 6. a pin; 7. a pin; 8. an arc waist hole; 9. a first gear; 10. a servo motor; 11. a second gear; 12. a rotating shaft; 13. installing a sleeve; 14. a tapered roller bearing; 15. and a baffle plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a fixing device of a teaching projector comprises a top plate 1 and a box body 2, wherein pin columns 6 are welded on two sides of the box body 2, a U-shaped mounting rack 5 is rotatably connected between the two pin columns 6, the side surface of the mounting rack 5 is provided with an arc waist hole 8, the center of the upper side of the mounting rack 5 is welded with a rotating shaft 12, a first gear 9 is arranged on the rotating shaft 12, a mounting sleeve 13 is fixedly connected with the lower side of the top plate 1, the inner cavity of the mounting sleeve 13 is clamped with a tapered roller bearing 14, the upper end of the rotating shaft 12 penetrates through the tapered roller bearing 14 and is in transition fit with the inner ring thereof, the upper end of the rotating shaft 12 is fixedly connected with a circular baffle 15, the lower side of the baffle 15 is contacted with a tapered roller bearing 14, a servo motor 10 is installed on the lower side of the top plate 1, a second gear 11 is installed on an output shaft of the servo motor 10, and the second gear 11 is meshed with the first gear 9.
Specifically, the front side of box 2 is equipped with rectangular window 4, the apron 3 is installed with the bolt to the rear side of box 2, and the projecting apparatus is installed in box 2 from the afterbody, then covers the apron, and box 2 protects the projecting apparatus, prevents the ash falling pollution.
Specifically, the both sides welding of box 2 has pin 7, pin 7 runs through arc waist hole 8 and rather than sliding connection, the front end of pin 7 is equipped with the screw thread and the spiro union has the nut, and the every single move angle of box 2 can be adjusted, screws up the nut after adjusting and fixes, and arc waist hole 8 plays limiting displacement to the every single move upset of box 2.
Specifically, the arc-shaped waist hole 8 takes the pin 6 as a circle center, and the radian of the arc-shaped waist hole 8 is 30 degrees.
Specifically, the outer ring of the tapered roller bearing 14 is in transition fit with the inner wall of the mounting sleeve 13, a round hole is formed in the lower side of the mounting sleeve 13, the rotating shaft 12 penetrates through the round hole, and the diameter of the round hole is larger than that of the rotating shaft 12.
Specifically, roof 1 is the rectangular plate structure and four corners are equipped with circular shape mounting hole, and roof 1 fixes indoor ceiling with expansion bolts.
The working principle is as follows: during the use arrange the projecting apparatus in box 2 and fix to make the camera lens of projecting apparatus to face to window 4, roof 1 passes through expansion bolts and installs on the smallpox, and box 2 uses round pin post 6 to rotate as the centre of a circle, adjusts the pitch angle, and the pitch angle degree mainly is the height of adjusting the plane of projection, and the condition that needs the change after adjusting is few, so this scheme adopts manual regulation. The orientation angle of the projector is adjusted by the driving of the servo motor 10, the servo motor 10 drives the second gear 11 to rotate, the second gear 11 drives the first gear 9 engaged with the second gear to rotate, and the rotating shaft 12 rotates along with the second gear to control the direction of the box body 2. The rotating shaft 12 is connected with the top plate 1 through the tapered roller bearing 14 and the mounting sleeve 13, and the tapered roller bearing 14 can bear certain radial tension and can ensure that the rotating shaft 12 can rotate freely relative to the mounting sleeve 13.
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 (6)
1. The utility model provides a fixing device of teaching projecting apparatus, includes roof (1) and box (2), its characterized in that: the two sides of the box body (2) are welded with the pin columns (6), the two pin columns (6) are rotatably connected with a U-shaped mounting rack (5), the side face of the mounting rack (5) is provided with an arc-shaped waist hole (8), the center of the upper side of the mounting rack (5) is welded with a rotating shaft (12), the rotating shaft (12) is provided with a first gear (9), the lower side of the top plate (1) is fixedly connected with a mounting sleeve (13), an inner cavity of the mounting sleeve (13) is clamped with a tapered roller bearing (14), the upper end of the rotating shaft (12) penetrates through the tapered roller bearing (14) and is in transition fit with an inner ring of the tapered roller bearing, the upper end of the rotating shaft (12) is fixedly connected with a round baffle (15), the lower side of the baffle (15) is in contact with the tapered roller bearing (14), the lower side of the top plate (1) is provided with a servo motor (10), and an output, the second gear (11) is meshed with the first gear (9).
2. A fixing device of a teaching projector according to claim 1, wherein: the front side of the box body (2) is provided with a rectangular window (4), and the rear side of the box body (2) is provided with a cover plate (3) by bolts.
3. A fixing device of a teaching projector according to claim 1, wherein: the welding of the both sides of box (2) has pin (7), pin (7) run through arc waist hole (8) and rather than sliding connection, the front end of pin (7) is equipped with the screw thread and the spiro union has the nut.
4. A fixing device of a teaching projector according to claim 1, wherein: the arc waist hole (8) takes the pin column (6) as the center of a circle, and the radian of the arc waist hole (8) is 30 degrees.
5. A fixing device of a teaching projector according to claim 1, wherein: the outer ring of the tapered roller bearing (14) is in transition fit with the inner wall of the mounting sleeve (13), a round hole is formed in the lower side of the mounting sleeve (13), and the rotating shaft (12) penetrates through the round hole.
6. A fixing device of a teaching projector according to claim 1, wherein: the top plate (1) is of a rectangular plate structure, and four corners of the top plate are provided with circular mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920613727.5U CN210800613U (en) | 2019-04-30 | 2019-04-30 | Fixing device of teaching projecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920613727.5U CN210800613U (en) | 2019-04-30 | 2019-04-30 | Fixing device of teaching projecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210800613U true CN210800613U (en) | 2020-06-19 |
Family
ID=71229094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920613727.5U Expired - Fee Related CN210800613U (en) | 2019-04-30 | 2019-04-30 | Fixing device of teaching projecting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210800613U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113834446A (en) * | 2021-11-25 | 2021-12-24 | 南京万生华态科技有限公司 | Acquisition device and acquisition method for fringe projection image |
-
2019
- 2019-04-30 CN CN201920613727.5U patent/CN210800613U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113834446A (en) * | 2021-11-25 | 2021-12-24 | 南京万生华态科技有限公司 | Acquisition device and acquisition method for fringe projection image |
| CN113834446B (en) * | 2021-11-25 | 2022-02-15 | 南京万生华态科技有限公司 | Acquisition device and acquisition method for fringe projection image |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211289420U (en) | Projector capable of being adjusted freely | |
| CN215420438U (en) | Network video monitoring multi-angle adjusting device | |
| CN210800613U (en) | Fixing device of teaching projecting apparatus | |
| CN203950114U (en) | A kind of whirligig of automatic fine tuning suspension type projector projection angle | |
| CN113432087A (en) | LED road lighting monitoring system | |
| CN210051912U (en) | Monitoring device with photometry and anemometry functions | |
| CN211344701U (en) | Monitor convenient for angle adjustment for classroom | |
| CN207634923U (en) | Can adjust automatically angle high-altitude monitoring device | |
| CN210979063U (en) | Multimedia projection support | |
| CN116088067A (en) | Meteorological monitoring device for electric power operation and maintenance site | |
| CN210042054U (en) | Be applied to IRIS subassembly of projector | |
| CN211232210U (en) | Projecting apparatus for audio-visual education programme convenient to ajust projection angle | |
| CN211175992U (en) | Display screen for engineering cost assessment and explanation | |
| CN217928159U (en) | Telescopic mounting bracket of video monitoring device | |
| CN212480672U (en) | Projector rack with adjustable position and angle | |
| CN205372019U (en) | Wall support of camera | |
| CN221124340U (en) | Product defect detection device | |
| CN221504556U (en) | Projector angle adjusting mechanism | |
| CN221402531U (en) | Camera seat adjusting device | |
| CN219046522U (en) | Ultra-wide view angle camera | |
| CN220829474U (en) | Visual inspection device for three pins of automobile steering | |
| CN219243257U (en) | Adjustable projection device for training | |
| CN217208838U (en) | Quick installation and debugging device for projector | |
| CN218966376U (en) | Auxiliary rolling equipment for display screen film coating | |
| CN209705656U (en) | A kind of adjustable installing mechanism of cloud teaching platform optical projection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200619 Termination date: 20210430 |