CN213040217U - Projection arrangement is used in computer teaching - Google Patents
Projection arrangement is used in computer teaching Download PDFInfo
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- CN213040217U CN213040217U CN202021993938.5U CN202021993938U CN213040217U CN 213040217 U CN213040217 U CN 213040217U CN 202021993938 U CN202021993938 U CN 202021993938U CN 213040217 U CN213040217 U CN 213040217U
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- fixedly connected
- rod piece
- sliding
- rod
- fixed block
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Abstract
The utility model relates to the field of projection devices, in particular to a projection device for computer teaching, which comprises a bottom plate and a first fixed block, wherein the outer side of a slide block is slidably connected with a slide rail, the inner side of the slide block at the lower end is spirally connected with a screw rod, the left end of the screw rod is fixedly connected with a first rotating handle, the inner side left end of a horizontal plate is rotatably connected with a threaded shaft, the left end of the threaded shaft is fixedly connected with a second rotating handle, the outer side of the threaded shaft is spirally connected with a threaded sleeve, and the top end of the supporting plate is fixedly connected with a projector body. And is comparatively stable in the adjustment process, avoids projection arrangement impaired.
Description
Technical Field
The utility model relates to a projection arrangement field specifically is a projection arrangement is used in computer teaching.
Background
In the computer specialty teaching process, multimedia teaching attracts liking of wide and big student more and more, however, current projecting apparatus need install and debug the height position of projecting apparatus before the teaching activity begins to make the teaching content of better projection computer teaching, arouse student's interest.
The adjusting effect of the existing projection device for computer teaching is single, the height can be adjusted only, the adjusting process is not stable enough, and a machine is easy to be injured.
Disclosure of Invention
An object of the utility model is to provide a projection arrangement is used in computer teaching 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:
a projection device for computer teaching comprises a bottom plate and a first fixed block, wherein the first fixed block at the lower end is fixedly connected with the right end of the bottom plate, the left end of the first fixed block at the lower end is rotatably connected with a first rod piece, the rear end of the first rod piece is rotatably connected with a second rod piece, the second rod piece is rotatably connected with the first fixed block at the upper end, the upper end of the first fixed block at the upper end is fixedly connected with a horizontal plate, the left ends of the first rod piece and the second rod piece are respectively provided with a sliding block, the outer side of the sliding block is slidably connected with a sliding rail, the inner side of the sliding block at the lower end is spirally connected with a lead screw, the left end of the lead screw is fixedly connected with a first rotating handle, the left end of the inner side of the horizontal plate is rotatably connected with a threaded shaft, the left end of the threaded shaft is, the utility model discloses a projector, including threaded sleeve, layer board, camera lens, pivot, third member, layer board right-hand member, layer board top fixedly connected with camera lens, layer board right-hand member, threaded sleeve front end rotates and is connected with the third member, the third member other end rotates and is connected with the layer board, the layer board right-hand member rotates and is connected with the second fixed block, second fixed block and horizontal plate fixed connection, layer board top fixedly connected with projector body, projector body left end fixedly connected with camera lens, projector body left end upper side fixedly connected with pivot, the pivot is located the camera lens top, the pivot left end rotates and is connected with the shielding piece, shielding piece top fixedly connected with third fixed block, the third fixed block is towards the one end fixedly connected with spring of pivot, third fixed block top rotates and is connected with the rope, rope outside sliding connection.
Preferably, the slide rail at the upper end is fixedly connected with the horizontal plate, and the slide rail at the lower end is fixedly connected with the bottom plate.
Preferably, the screw rod is rotatably connected with a slide rail at the lower end, and the screw rod penetrates through the slide rail at the lower end.
Preferably, the number of the shielding pieces is 2, a plush layer is arranged on the right side of each shielding piece, and the plush layers on the shielding pieces are connected with the lens in a sliding mode.
Preferably, the rotating rod is connected with the projector body in a rotating mode, an L rod is connected to the inner side of the rotating rod in a sliding mode, the L rod penetrates through the rotating rod, and the L rod is connected with the projector body in a sliding mode.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in the utility model, through the arrangement of the first rod piece, the second rod piece, the screw rod, the first rotating handle, the slider, the threaded shaft, the threaded sleeve, the third rod piece and the like, the first rod piece and the second rod piece can be rotated by rotating the first rotating handle so as to raise or lower the horizontal plate, the threaded shaft can be rotated by rotating the second rotating handle so as to drive the threaded sleeve to extrude the third rod piece so as to change the inclination angle of the supporting plate, the height and the inclination angle of the projection device can be quickly adjusted by the device, and the device is more stable in the adjusting process, so that the projection device is prevented from being damaged;
2. the utility model discloses in, through shielding piece, spring, rope, sleeve, bull stick and the L pole that sets up, make the rope shrink through rotating the bull stick to make the shielding piece open, close fast under the effect of spring, be equipped with the pile layer because of the shielding piece, can clear up the camera lens opening the in-process of closing, avoided teaching environment dust injury camera lens, and can clear up the camera lens dust fast.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure at A of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the structure of FIG. 1 at B according to the present invention;
fig. 4 is a schematic view of the installation structure of the shielding plate of the present invention.
In the figure: the projector comprises a base plate 1, a first fixing block 2, a first rod piece 3, a second rod piece 4, a horizontal plate 5, a sliding rail 6, a sliding block 7, a lead screw 8, a first rotating handle 9, a threaded shaft 10, a second rotating handle 11, a threaded sleeve 12, a third rod piece 13, a supporting plate 14, a second fixing block 15, a projector body 16, a lens 17, a rotating shaft 18, a shielding piece 19, a third fixing block 20, a spring 21, a rope 22, a sleeve 23, a rotating rod 24 and a rod 25L.
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. 1-4, the present invention provides a technical solution:
a projection device for computer teaching comprises a bottom plate 1 and a first fixed block 2, wherein the first fixed block 2 at the lower end is fixedly connected with the right end of the bottom plate 1, the left end of the first fixed block 2 at the lower end is rotatably connected with a first rod piece 3, the rear end of the first rod piece 3 is rotatably connected with a second rod piece 4, the second rod piece 4 is rotatably connected with the first fixed block 2 at the upper end, the upper end of the first fixed block 2 at the upper end is fixedly connected with a horizontal plate 5, the left ends of the first rod piece 3 and the second rod piece 4 are respectively provided with a slide block 7, the outer side of the slide block 7 is slidably connected with a slide rail 6, the inner side of the slide block 7 at the lower end is spirally connected with a lead screw 8, the left end of the lead screw 8 is fixedly connected with a first rotating handle 9, the inner side of the horizontal plate 5 is rotatably connected with a threaded shaft 10, the left end of, the front end of the threaded sleeve 12 is rotatably connected with a third rod 13, the other end of the third rod 13 is rotatably connected with a supporting plate 14, the right end of the supporting plate 14 is rotatably connected with a second fixed block 15, the second fixed block 15 is fixedly connected with the horizontal plate 5, the top end of the supporting plate 14 is fixedly connected with a projector body 16, the left end of the projector body 16 is fixedly connected with a lens 17, the upper side of the left end of the projector body 16 is fixedly connected with a rotating shaft 18, the rotating shaft 18 is positioned above the lens 17, the left end of the rotating shaft 18 is rotatably connected with a shielding sheet 19, the top end of the shielding sheet 19 is fixedly connected with a third fixed block 20, the third fixed block 20 faces to one end of the rotating shaft 18 and is fixedly connected with a spring 21, the top end of the third fixed block 20 is rotatably connected with a rope 22, the outer.
The sliding rail 6 at the upper end is fixedly connected with the horizontal plate 5, the sliding rail 6 at the lower end is fixedly connected with the bottom plate 1, and the sliding block 7 slides stably through the sliding rail 6; the screw rod 8 is rotatably connected with the slide rail 6 at the lower end, the screw rod 8 penetrates through the slide rail 6 at the lower end, and the horizontal position of the screw rod 8 can be kept unchanged; the number of the shielding sheets 19 is 2, the right side of each shielding sheet 19 is provided with a plush layer, the plush layers on the shielding sheets 19 are in sliding connection with the lens 17, and the lens 17 can be cleaned through the plush layers; the rotating rod 24 is rotatably connected with the projector body 16, the L rod 25 is slidably connected to the inner side of the rotating rod 24, the L rod 25 penetrates through the rotating rod 24, the L rod 25 is slidably connected with the projector body 16, and the rotating rod 24 can be positioned through the L rod 25.
The working process is as follows: all electrical appliances in the device adopt an external power supply, the bottom plate 1 is placed on a stable plane, the lead screw 8 can be rotated by rotating the first rotating handle 9, the lead screw 8 slides on a slide rail in the process of driving the slide block 7 to rotate, so as to drive the second rod piece 4 to rotate, the second rod piece 4 and the first rod piece 3 rotate, and then the first rod piece 3 and the second rod piece 4 jointly extrude the horizontal plate 5, so as to lift the horizontal plate 5 and accurately change the height of the projection device, the threaded shaft 10 rotates by rotating the second rotating handle 11, the threaded shaft 10 rotates to drive the threaded sleeve 12 to rotate and slide in the horizontal plate 5, the threaded sleeve 12 drives the third rod piece 13 to rotate, so as to drive the supporting plate 14 to rotate, and further change the inclination angle of the projector body 16, the device is stable and fine in the adjusting process, the effect is good, the L rod 25 is drawn out, the rotating rod 24 is rotated, make the bull stick 24 drive rope 22 shrink, rope 22 slides in sleeve 23, and then drive shielding piece 19 and rotate on pivot 18, shielding piece 19 opens the back, insert L pole 25 in bull stick 24 and slide with projector body 16, thereby keep shielding piece 19 to be fixed a position, link to each other projection arrangement and computer, begin teaching, after finishing, lift L pole 25 upwards, under the effect of spring 21, shielding piece 19 closes, in the in-process that shielding piece 19 opened and closed, the dust on camera lens 17 is cleared away to the pile layer that shielding piece 19 was equipped with automatically.
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 (5)
1. The utility model provides a projection arrangement is used in computer teaching, includes bottom plate (1) and first fixed block (2), its characterized in that: the first fixing block (2) at the lower end is fixedly connected with the right end of the bottom plate (1), the left end of the first fixing block (2) at the lower end is rotatably connected with a first rod piece (3), the rear end of the first rod piece (3) is rotatably connected with a second rod piece (4), the second rod piece (4) is rotatably connected with the first fixing block (2) at the upper end, the upper end of the first fixing block (2) at the upper end is fixedly connected with a horizontal plate (5), the left ends of the first rod piece (3) and the second rod piece (4) are respectively provided with a sliding block (7), the outer side of the sliding block (7) is slidably connected with a sliding rail (6), the inner side of the sliding block (7) at the lower end is spirally connected with a screw rod (8), the left end of the screw rod (8) is fixedly connected with a first rotating handle (9), and the inner side left, the left end of the threaded shaft (10) is fixedly connected with a second rotating handle (11), the outer side of the threaded shaft (10) is spirally connected with a threaded sleeve (12), the threaded sleeve (12) is connected with a horizontal plate (5) in a sliding manner, the front end of the threaded sleeve (12) is rotatably connected with a third rod piece (13), the other end of the third rod piece (13) is rotatably connected with a supporting plate (14), the right end of the supporting plate (14) is rotatably connected with a second fixed block (15), the second fixed block (15) is fixedly connected with the horizontal plate (5), the top end of the supporting plate (14) is fixedly connected with a projector body (16), the left end of the projector body (16) is fixedly connected with a lens (17), the upper side of the left end of the projector body (16) is fixedly connected with a rotating shaft (18), the rotating shaft (18) is positioned above the lens (17), and the left end of the rotating shaft (, shelter from piece (19) top fixedly connected with third fixed block (20), third fixed block (20) are towards one end fixedly connected with spring (21) of pivot (18), third fixed block (20) top is rotated and is connected with rope (22), rope (22) outside sliding connection has sleeve (23), sleeve (23) and projecting apparatus body (16) fixed connection, rope (22) right-hand member and bull stick (24) fixed connection.
2. A projection apparatus for computer teaching according to claim 1, wherein: the sliding rail (6) positioned at the upper end is fixedly connected with the horizontal plate (5), and the sliding rail (6) positioned at the lower end is fixedly connected with the bottom plate (1).
3. A projection apparatus for computer teaching according to claim 1, wherein: the screw rod (8) is rotatably connected with the sliding rail (6) positioned at the lower end, and the screw rod (8) penetrates through the sliding rail (6) positioned at the lower end.
4. A projection apparatus for computer teaching according to claim 1, wherein: the number of the shielding pieces (19) is 2 in total, a plush layer is arranged on the right side of each shielding piece (19), and the plush layer on each shielding piece (19) is connected with the lens (17) in a sliding mode.
5. A projection apparatus for computer teaching according to claim 1, wherein: bull stick (24) and projecting apparatus body (16) rotate to be connected, bull stick (24) inboard sliding connection has L pole (25), bull stick (25) run through bull stick (24), L pole (25) and projecting apparatus body (16) sliding connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021993938.5U CN213040217U (en) | 2020-09-14 | 2020-09-14 | Projection arrangement is used in computer teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021993938.5U CN213040217U (en) | 2020-09-14 | 2020-09-14 | Projection arrangement is used in computer teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213040217U true CN213040217U (en) | 2021-04-23 |
Family
ID=75534546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021993938.5U Expired - Fee Related CN213040217U (en) | 2020-09-14 | 2020-09-14 | Projection arrangement is used in computer teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213040217U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114413116A (en) * | 2022-01-04 | 2022-04-29 | 珠海市金品创业共享平台科技有限公司 | System for white balance correction is carried out display screen |
| CN114857879A (en) * | 2022-04-21 | 2022-08-05 | 马小云 | Adjustable steel structure construction scaffold |
-
2020
- 2020-09-14 CN CN202021993938.5U patent/CN213040217U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114413116A (en) * | 2022-01-04 | 2022-04-29 | 珠海市金品创业共享平台科技有限公司 | System for white balance correction is carried out display screen |
| CN114857879A (en) * | 2022-04-21 | 2022-08-05 | 马小云 | Adjustable steel structure construction scaffold |
| CN114857879B (en) * | 2022-04-21 | 2024-04-26 | 马小云 | Adjustable steel structure building construction frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210423 Termination date: 20210914 |
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| CF01 | Termination of patent right due to non-payment of annual fee |