CN211742289U - Network teaching projection arrangement - Google Patents
Network teaching projection arrangement Download PDFInfo
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- CN211742289U CN211742289U CN202020199208.1U CN202020199208U CN211742289U CN 211742289 U CN211742289 U CN 211742289U CN 202020199208 U CN202020199208 U CN 202020199208U CN 211742289 U CN211742289 U CN 211742289U
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Abstract
The utility model provides a network teaching projection arrangement. The network teaching projection device comprises a projector; the U-shaped frame is fixedly arranged on one side of the projector; the two first sliding grooves are respectively formed in the top inner wall and the bottom inner wall of the U-shaped frame; the two sliding pieces are respectively installed in the two first sliding grooves in a sliding mode, and one sides, close to each other, of the two sliding pieces extend into the two U-shaped frames; the shielding piece is fixedly arranged on one side, close to each other, of each sliding piece, the shielding piece is in contact with the inner wall of the top and the inner wall of the bottom of the U-shaped frame, and one side of the shielding piece extends out of the U-shaped frame. The utility model provides a network teaching projection arrangement has can effectively protect, prevent stubborn adhesion to projecting apparatus projecting lens, and can adjust the advantage of declination in a flexible way.
Description
Technical Field
The utility model relates to a network teaching projection technical field especially relates to a network teaching projection arrangement.
Background
Network teaching is a teaching mode comparatively general at present, because its expressive nature is stronger, it is also more convenient, it likes by people deeply, mainly adopt face-to-face professor and training mode to give lessons the training in the teaching training of current in network teaching, though also have through long-range network teaching but the teaching effect often does not have face-to-face teaching better, the most training device who uses in the conventional face-to-face teaching all imparts knowledge to students through computer cooperation projecting apparatus, the use of projecting apparatus can make the influence direct projection of computer on the screen, what watch is clearer, and the use of computer has been reduced, it is comparatively convenient, the projecting apparatus is for more convenient use, install the top in large-scale ladder classroom usually.
However, most projectors are hung on roofs and exposed in the air for a long time, stains which are difficult to take out, such as insect excrement and the like, are inevitably stained on a projection lens of the projectors, the stains easily cause shadows when the projectors are used, so that people cannot see pictures clearly, and troubles are brought to people.
Therefore, there is a need to provide a new network teaching projection device to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a can effectively protect, prevent stubborn adhesion, and can adjust the network teaching projection arrangement of declination in a flexible way to projecting apparatus projecting lens.
For solving the technical problem, the utility model provides a network teaching projection arrangement includes: a projector; the U-shaped frame is fixedly arranged on one side of the projector; the two first sliding grooves are respectively formed in the top inner wall and the bottom inner wall of the U-shaped frame; the two sliding pieces are respectively installed in the two first sliding grooves in a sliding mode, and one sides, close to each other, of the two sliding pieces extend into the two U-shaped frames; the shielding piece is fixedly arranged on one side, close to each other, of each sliding piece, the shielding piece is in contact with the inner wall of the top and the inner wall of the bottom of the U-shaped frame, and one side of the shielding piece extends out of the U-shaped frame; the rack is fixedly arranged on one side, far away from the projector, of the shielding sheet; a transmission device disposed on the projector.
Preferably, the transmission device comprises a first fixing plate, a second fixing plate, a first motor, a transmission rod and a gear, the first fixing plate is fixedly installed on one side of the projector, the second fixing plate is arranged on one side, far away from the projector, of the shielding piece, the bottom of the second fixing plate is fixedly connected with the first fixing plate, the first motor is fixedly installed on one side, far away from the shielding piece, of the second fixing plate, the transmission rod is rotatably installed on the second fixing plate, two ends of the transmission rod extend out of the second fixing plate, an output shaft of the first motor is fixedly connected with one end of the transmission rod, the gear is fixedly installed at one end, close to the shielding piece, of the transmission rod, the gear is located below the gear, and the gear is meshed with the rack.
Preferably, the second fixing plate is provided with a first through hole, a first bearing is fixedly installed in the first through hole, and an inner ring of the first bearing is fixedly sleeved on the transmission rod.
Preferably, the shielding piece extends to one side of the U-shaped frame and is fixedly provided with a limiting plate.
Preferably, an adjusting device is arranged at the top of the projector and comprises two hinged pieces, a fixed rod, a second chute, a groove, a second motor, a screw rod, a sliding block, a first hinged block, a hinged rod and a second hinged block, wherein the two hinged pieces are fixedly arranged at the top of the projector, the fixed rod is hinged on the two hinged pieces, the fixed rod is positioned between the two hinged pieces, the second chute is arranged at one side of the fixed rod, the groove is positioned above the second chute, the second motor is fixedly arranged on the inner wall at one side of the groove, the screw rod is rotatably arranged on the inner wall at the top and the inner wall at the bottom of the second chute, the top end of the screw rod extends into the groove and is fixedly connected with an output shaft of the second motor, the slider threaded sleeve is established on the screw rod, the slider with the inner wall sliding connection of second spout, first articulated piece fixed mounting be in one side of slider, first articulated piece is kept away from one side of slider extends to outside the dead lever, the hinge bar sets up one side of dead lever, the hinge bar with first articulated piece is articulated mutually, the articulated piece fixed mounting of second is in the top of projecting apparatus, the articulated piece of second with the hinge bar is articulated mutually.
Preferably, a second through hole is formed in the inner wall of the top of the second sliding groove, the second through hole is communicated with the groove, a second bearing is fixedly installed in the second through hole, and the inner ring of the second bearing is fixedly sleeved on the screw rod.
Preferably, an embedded groove is formed in the inner wall of the bottom of the second sliding groove, a third bearing is fixedly mounted in the embedded groove, and an inner ring of the third bearing is fixedly sleeved on the screw rod.
Compared with the prior art, the utility model provides a network teaching projection arrangement has following beneficial effect:
the utility model provides a network teaching projection arrangement makes through electronic mode and shelters from the piece and carry out nimble slip, reaches and open and shelter from the front of projecting apparatus, can carry out good protection to the projecting lens of projecting apparatus after sheltering from, prevents in long-term use, and it is stubborn to adhere to on the camera lens, influences the use.
Drawings
Fig. 1 is a schematic side view, a cross-sectional structural view of a first embodiment of a network teaching projection apparatus provided by the present invention;
FIG. 2 is an enlarged schematic view of portion A shown in FIG. 1;
fig. 3 is a front view of a first embodiment of the network teaching projection apparatus provided by the present invention;
FIG. 4 is an enlarged schematic view of a portion B shown in FIG. 3;
fig. 5 is a schematic side sectional view of a second embodiment of the network teaching projection apparatus provided in the present invention;
fig. 6 is an enlarged structural view of a portion C shown in fig. 5.
Reference numbers in the figures: 1. the projector, 2, U-shaped frame, 3, first spout, 4, gleitbretter, 5, shelter from the piece, 6, rack, 7, first fixed plate, 8, second fixed plate, 9, first motor, 10, transfer line, 11, gear, 12, articulated piece, 13, dead lever, 14, second spout, 15, recess, 16, second motor, 17, screw rod, 18, slider, 19, first articulated piece, 20, articulated rod, 21, the articulated piece of second.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
The first embodiment:
please refer to fig. 1-4. The network teaching projection arrangement includes: a projector 1; the U-shaped frame 2 is fixedly arranged on one side of the projector 1; the two first sliding chutes 3 are respectively arranged on the top inner wall and the bottom inner wall of the U-shaped frame 2; the two sliding pieces 4 are respectively installed in the two first sliding grooves 3 in a sliding mode, and one sides, close to each other, of the two sliding pieces 4 extend into the two U-shaped frames 2; the shielding piece 5 is fixedly arranged on one side of each sliding piece 4 close to each other, the shielding piece 5 is contacted with the inner wall of the top and the inner wall of the bottom of the U-shaped frame 2, and one side of the shielding piece 5 extends out of the U-shaped frame 2; the rack 6 is fixedly arranged on one side, away from the projector 1, of the shielding sheet 5; a transmission device provided on the projector 1.
The transmission device comprises a first fixing plate 7, a second fixing plate 8, a first motor 9, a transmission rod 10 and a gear 11, wherein the first fixing plate 7 is fixedly arranged on one side of the projector 1, the second fixing plate 8 is arranged on one side, far away from the projector 1, of the shielding piece 5, the bottom of the second fixing plate 8 is fixedly connected with the first fixing plate 7, the first motor 9 is fixedly arranged on one side, far away from the shielding piece 5, of the second fixing plate 8, the transmission rod 10 is rotatably arranged on the second fixing plate 8, two ends of the transmission rod 10 extend out of the second fixing plate 8, an output shaft of the first motor 9 is fixedly connected with one end of the transmission rod 10, the gear 11 is fixedly arranged at one end, close to the shielding piece 5, of the transmission rod 10, and the gear 11 is positioned below the gear 6, the gear 11 is engaged with the rack 6.
A first through hole is formed in the second fixing plate 8, a first bearing is fixedly mounted in the first through hole, and an inner ring of the first bearing is fixedly sleeved on the transmission rod 10.
The shielding piece 5 extends to one side of the U-shaped frame 2 and is fixedly provided with a limiting plate.
In this embodiment:
when the projector 1 needs to be used, the first motor 9 is started, the output shaft of the first motor 9 drives the transmission rod 10 to rotate when rotating, the transmission rod 10 drives the meshed rack 6 to slide out of the U-shaped frame 2 when rotating, because the rack 6 and the shielding piece 5 are fixedly connected, so that the shielding piece 5 carried by the rack 6 slides out of the U-shaped frame 2 along the inner wall of the U-shaped frame 2, and simultaneously the two sliding pieces 4 slide in the corresponding first sliding chutes 3, when the shielding piece 5 moves to the limit position and the two sliding pieces 4 prop against the inner wall of the corresponding first sliding chute 3, the first motor 9 is closed, the front surface of the projector 1 is completely exposed, the projector 1 can be used, after the projector 1 is used, the shielding piece 5 can be reset to shield the front projection lens of the projector 1 only by starting the output shaft of the first motor 9 to rotate reversely, and effective dustproof protection is achieved.
Compared with the prior art, the utility model provides a network teaching projection arrangement has following beneficial effect:
the utility model provides a network teaching projection arrangement makes through electronic mode and shelters from piece 5 and carry out nimble slip, reaches and opens and shelter from the front of projecting apparatus 1, can carry out good protection to the projecting lens of projecting apparatus after sheltering from, prevents in long-term use, and it is stubborn to adhere to on the camera lens, influences the use.
Second embodiment:
based on the network teaching projection device provided by the first embodiment of the application, the second embodiment of the application provides another network teaching projection device. The second embodiment is merely a preferred way of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
The second embodiment of the present invention will be further explained with reference to the drawings and the embodiments.
Referring to fig. 5-6, the network teaching projection apparatus further includes an adjusting device, the adjusting device is disposed on the top of the projector 1, the adjusting device includes two hinged pieces 12, a fixing rod 13, a second sliding slot 14, a groove 15, a second motor 16, a screw 17, a sliding block 18, a first hinged block 19, a hinged rod 20, and a second hinged block 21, both hinged pieces 12 are fixedly mounted on the top of the projector 1, the fixing rod 13 is hinged on both hinged pieces 12, the fixing rod 13 is located between the two hinged pieces 12, the second sliding slot 14 is disposed on one side of the fixing rod 13, the groove 15 is located above the second sliding slot 14, the second motor 16 is fixedly mounted on an inner wall of one side of the groove 15, the screw 17 is rotatably mounted on an inner wall of the top and an inner wall of the bottom of the second sliding slot 14, the top of screw rod 17 extends to in the recess 15 and with the output shaft fixed connection of second motor 16, 18 threaded sleeve of slider is established on the screw rod 17, slider 18 with the inner wall sliding connection of second spout 14, first articulated piece 19 fixed mounting be in one side of slider 18, first articulated piece 19 is kept away from one side of slider 18 extends to outside the dead lever 13, articulated rod 20 sets up one side of dead lever 13, articulated rod 20 with first articulated piece 19 is articulated mutually, the articulated piece 21 fixed mounting of second is in the top of projecting apparatus 1, the articulated piece 21 of second with articulated rod 20 is articulated mutually.
A second through hole is formed in the inner wall of the top of the second sliding groove 14 and communicated with the groove 15, a second bearing is fixedly installed in the second through hole, and the inner ring of the second bearing is fixedly sleeved on the screw rod 17.
An embedded groove is formed in the inner wall of the bottom of the second sliding groove 14, a third bearing is fixedly mounted in the embedded groove, and an inner ring of the third bearing is fixedly sleeved on the screw rod 17.
In this embodiment:
at first fix projecting apparatus 1 at the top of wall through dead lever 13 according to prior art, start second motor 16 when the projection angle of projecting apparatus 1 needs to be adjusted, second motor 16 drives screw rod 17 to rotate when rotating, screw rod 17 drives slider 18 and rises along second spout 14 slip when rotating, through first articulated piece 19 pulling articulated rod 20 when slider 18 rises, articulated rod 20 drives second articulated piece 21, projecting apparatus 1 uses the pin joint of two articulated pieces 12 and dead lever 13 to be circular arc motion this moment, reach the purpose of adjusting the projection angle of projecting apparatus 1, and is very convenient to use.
Compared with the prior art, the utility model provides a network teaching projection arrangement has following beneficial effect:
the utility model provides a network teaching projection arrangement adjusts through the angle to projecting apparatus 1 that electronic mode can be swift, has alleviated people to a certain extent and has taken place the fuzzy condition of projection when the polarisation in the classroom, makes people observe more conveniently, gives people and has brought the facility.
It should be noted that the device structure and the accompanying drawings of the present invention mainly describe the principle of the present invention, and in the technology of this design principle, the settings of the power mechanism, the power supply system, the control system, etc. of the device are not completely described, and the details of the power mechanism, the power supply system, and the control system can be clearly known on the premise that those skilled in the art understand the principle of the present invention.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (7)
1. A network teaching projection arrangement, comprising:
a projector;
the U-shaped frame is fixedly arranged on one side of the projector;
the two first sliding grooves are respectively formed in the top inner wall and the bottom inner wall of the U-shaped frame;
the two sliding pieces are respectively installed in the two first sliding grooves in a sliding mode, and one sides, close to each other, of the two sliding pieces extend into the two U-shaped frames;
the shielding piece is fixedly arranged on one side, close to each other, of each sliding piece, the shielding piece is in contact with the inner wall of the top and the inner wall of the bottom of the U-shaped frame, and one side of the shielding piece extends out of the U-shaped frame;
the rack is fixedly arranged on one side, far away from the projector, of the shielding sheet;
a transmission device disposed on the projector.
2. The network teaching projection device of claim 1, wherein the transmission device comprises a first fixing plate, a second fixing plate, a first motor, a transmission rod and a gear, the first fixing plate is fixedly installed at one side of the projector, the second fixing plate is installed at one side of the shielding plate far away from the projector, the bottom of the second fixing plate is fixedly connected with the first fixing plate, the first motor is fixedly installed at one side of the second fixing plate far away from the shielding plate, the transmission rod is rotatably installed on the second fixing plate, two ends of the transmission rod extend out of the second fixing plate, an output shaft of the first motor is fixedly connected with one end of the transmission rod, the gear is fixedly installed at one end of the transmission rod near the shielding plate, and the gear is located below the gear, the gear is meshed with the rack.
3. The network teaching projection device of claim 2, wherein the second fixing plate is provided with a first through hole, a first bearing is fixedly installed in the first through hole, and an inner ring of the first bearing is fixedly sleeved on the transmission rod.
4. The network teaching projection device of claim 1, wherein a limiting plate is fixedly mounted on one side of the shielding piece extending to the U-shaped frame.
5. The network teaching projection device of claim 1, wherein the top of the projector is provided with an adjusting device, the adjusting device comprises two hinged pieces, a fixing rod, a second sliding groove, a second motor, a screw rod, a sliding block, a first hinged block, a hinged rod and a second hinged block, the two hinged pieces are both fixedly mounted on the top of the projector, the fixing rod is hinged on the two hinged pieces, the fixing rod is located between the two hinged pieces, the second sliding groove is arranged on one side of the fixing rod, the groove is located above the second sliding groove, the second motor is fixedly mounted on one side of the inner wall of the groove, the screw rod is rotatably mounted on the top inner wall and the bottom inner wall of the second sliding groove, the top end of the screw rod extends into the groove and is fixedly connected with the output shaft of the second motor, the slider threaded sleeve is established on the screw rod, the slider with the inner wall sliding connection of second spout, first articulated piece fixed mounting be in one side of slider, first articulated piece is kept away from one side of slider extends to outside the dead lever, the hinge bar sets up one side of dead lever, the hinge bar with first articulated piece is articulated mutually, the articulated piece fixed mounting of second is in the top of projecting apparatus, the articulated piece of second with the hinge bar is articulated mutually.
6. The network teaching projection device of claim 5, wherein a second through hole is formed in an inner wall of the top of the second sliding groove, the second through hole is communicated with the groove, a second bearing is fixedly installed in the second through hole, and an inner ring of the second bearing is fixedly sleeved on the screw rod.
7. The network teaching projection device of claim 5, wherein an embedding groove is formed in the inner wall of the bottom of the second sliding groove, a third bearing is fixedly installed in the embedding groove, and an inner ring of the third bearing is fixedly sleeved on the screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020199208.1U CN211742289U (en) | 2020-02-24 | 2020-02-24 | Network teaching projection arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020199208.1U CN211742289U (en) | 2020-02-24 | 2020-02-24 | Network teaching projection arrangement |
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| Publication Number | Publication Date |
|---|---|
| CN211742289U true CN211742289U (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020199208.1U Active CN211742289U (en) | 2020-02-24 | 2020-02-24 | Network teaching projection arrangement |
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| CN (1) | CN211742289U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879778A (en) * | 2020-11-27 | 2021-06-01 | 胡勇 | Projector with high ceiling stability |
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2020
- 2020-02-24 CN CN202020199208.1U patent/CN211742289U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879778A (en) * | 2020-11-27 | 2021-06-01 | 胡勇 | Projector with high ceiling stability |
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