CN212342068U

CN212342068U - Remote interactive teaching system

Info

Publication number: CN212342068U
Application number: CN202021412790.1U
Authority: CN
Inventors: 胡家耀
Original assignee: Shenzhen Jurongxin Technology Co ltd
Current assignee: Shenzhen Jurongxin Technology Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-01-12
Anticipated expiration: 2030-07-16

Abstract

The utility model relates to a long-range interactive teaching system, including high in the clouds data platform and teaching subsystem, high in the clouds data platform passes through the internet access teaching subsystem and can carry out data communication, the teaching subsystem comprises teaching host computer, stand in kind, router and output device, output device includes projecting apparatus, curtain mounting box, projection curtain and stereo set, be fixed with fixed base block on the projection wall of curtain mounting box below, install the axis of rotation of all rotating the connection rather than the inside wall at both ends in the curtain mounting box, the projection curtain is convoluteed in the axis of rotation, the through-hole that supplies the projection curtain to pass is seted up to curtain mounting box diapire, projection curtain lower extreme is fixed with the counter weight strip, install on the fixed base block and be used for the fixed subassembly of counter weight strip and fixed base block. This application has effectively reduced the probability that the projection curtain takes place to shake in projection process to the teaching content that the student normally watched the projecting apparatus to put in.

Description

Remote interactive teaching system

Technical Field

The application relates to the technical field of interactive teaching, in particular to a remote interactive teaching system.

Background

Along with the continuous development of education informationization and the continuous deepening of education reform, utilize computer network, camera and projecting apparatus to impart knowledge to students, saved the education resource, teachers and students can realize the interdynamic moreover, and feedback and exchange are all convenient more effective than traditional teaching. In the teaching of the school, electronic courseware is prepared before a teacher, and the courseware can be displayed in a classroom only by the modes of computer equipment, a projector, audio equipment and the like, so that the blackboard-writing time is greatly reduced, the classroom capacity is effectively expanded, and the teaching efficiency is improved.

The current chinese patent that bulletin number is CN208208117U discloses a long-range interactive teaching system, including high in the clouds data platform and the teaching subsystem that the multiunit comprises teaching host, real object stand, router and output device, each teaching subsystem of group sets up in each classroom, high in the clouds data platform passes through each teaching subsystem of group of internet access and can carry out data communication, high in the clouds data platform acquires video, audio data and the storage of each teaching subsystem of group, output device includes video output device and audio output device, video output device is projecting apparatus or display, the projecting apparatus correspondence is provided with the projection curtain. The utility model discloses a remote interactive teaching system who discloses provide can bring school, teacher, student, the head of a family of difference into an open, interactive teaching cloud platform based on cloud computing technology, has realized that the remote teaching between different classrooms, different schools is interactive, the teaching resource sharing.

When using projection curtain commonly used among the prior art, because the influence of external factors makes the projection curtain take place the shake easily to influence the student and watch the teaching content that the projecting apparatus was put in.

SUMMERY OF THE UTILITY MODEL

In order to reduce the probability that the projection curtain takes place to shake in the projection process to the student normally watches the teaching content that the projecting apparatus put in, this application provides a long-range interactive teaching system.

The application provides a remote interactive teaching system adopts following technical scheme:

the utility model provides a long-range interactive teaching system, includes high in the clouds data platform and teaching subsystem, high in the clouds data platform passes through the internet access teaching subsystem and can carry out data communication, the teaching subsystem comprises teaching host computer, stand in kind, router and output device, output device includes projecting apparatus, curtain mounting box, projection curtain and stereo set, be fixed with fixed base block on the projection wall of curtain mounting box below, install the axis of rotation of all rotating the connection rather than the inside wall at both ends in the curtain mounting box, the projection curtain is convoluteed in the axis of rotation, the through-hole that supplies the projection curtain to pass is seted up to curtain mounting box diapire, projection curtain lower extreme is fixed with the counter weight strip, install on the fixed base block and be used for the fixed subassembly of counter weight strip and fixed base block.

Through adopting above-mentioned technical scheme, when using projecting apparatus and projection curtain to put in teaching content, the projection curtain is emitted from the through-hole of curtain mounting box bottom, under the counter weight effect of counter weight strip, the vertical decline of projection curtain, when the position of counter weight strip corresponds with the position of fixed base block, teacher or staff only need adopt fixed subassembly can be fixed with fixed base block with the counter weight strip, with this stability of projection curtain in projection process has been strengthened, the probability that the projection curtain takes place the shake in projection process has been reduced, so that the student normally watches the teaching content that the projecting apparatus put in.

Preferably, the fixing component comprises a mounting plate arranged at the end part of the fixed base block, a movable column arranged at one side of the mounting plate far away from the counterweight strip, a sucker fixed at one end of the movable column far away from the counterweight strip, a movable block fixed at one end of the movable column near the counterweight strip, an upper slide bar slidably arranged on the side wall of the movable block far away from the movable column, an upper clamping block fixed at one end of the upper slide bar far away from the movable block, a lower slide bar slidably arranged on the side wall of the movable block far away from the movable column, a lower clamping block fixed at one end of the lower slide bar far away from the movable block, and a spring arranged between the lower slide bar and the upper slide bar, the movable block is arranged at one side of the mounting plate far away from the counterweight strip, a through hole for the upper slide bar and the lower slide bar to pass through simultaneously is arranged on the side wall of the, the upper surface of the counterweight strip is provided with a second mounting hole communicated with the first mounting hole in a penetrating manner, and the upper clamping block and the lower clamping block are matched with the second mounting hole in a clamping manner.

By adopting the technical scheme, when the projection screen vertically descends until the position of the counterweight strip corresponds to the position of the fixed base block, a teacher or a worker only needs to push the movable column to one side far away from the counterweight strip, and the sucker is firmly adsorbed on the projection wall, then, the worker needs to press the upper slide bar and the lower slide bar simultaneously, so that the upper clamping block is matched with the lower clamping block and the spring is compressed, the upper clamping block and the lower clamping block can conveniently pass through the first mounting hole, under the action of the elasticity of the spring, the upper fixture block is clamped with the second mounting hole above the through hole, the lower fixture block is clamped with the second mounting hole below the through hole, thereby make between counter weight strip and the fixed base block can fix, strengthened counter weight strip and projection curtain stability at the projecting apparatus projection in-process, reduced because of the projection curtain takes place to shake and influence the probability that the student normally watches the projection content in the projection process.

Preferably, an upper chamfer is arranged on an intersecting edge between the upper surface of the upper fixture block and the side wall of the upper fixture block on the side far away from the movable block, and a lower chamfer is arranged on an intersecting edge between the bottom surface of the lower fixture block and the side wall of the lower fixture block on the side far away from the movable block.

Through adopting above-mentioned technical scheme, offer the chamfer on last fixture block, offer down the chamfer on the lower fixture block to this has reduced the fixture block and has gone up the fixture block down and the degree of difficulty that first mounting hole aligns and insert in first mounting hole, is favorable to teacher or staff to fix counter weight strip and fixed base block through fixed subassembly.

Preferably, a connecting block is fixed at one end of the mounting plate close to the fixed base block, and a sliding groove connected with the connecting block in a sliding manner is formed in an intersecting edge between the upper surface of the fixed base block and the side wall of the fixed base block close to one side of the mounting plate.

Through adopting above-mentioned technical scheme, use taking place easily after a period when the sucking disc and damage, influence the stability of being connected between activity post and the projection wall, at this moment, the staff only needs upwards to stimulate fixed base block for the connecting block is followed the upper end opening roll-off of spout, and the staff of so being convenient for will fix base block, activity post and sucking disc and dismantle, and change the sucking disc of damage.

Preferably, the cross section of the sliding groove and the cross section of the connecting block are both in a dovetail shape.

Through adopting above-mentioned technical scheme, the cross section of spout and connecting block all is the dovetail to this has avoided the connecting block to be close to the condition of the opening roll-off of fixed base block one side from the spout, has strengthened the stability of connecting block in the use.

Preferably, a fastening bolt penetrates through the connecting block and is in clearance fit with the connecting block, and the fastening bolt penetrates through the connecting block and then is in threaded connection with the fixed base block.

Through adopting above-mentioned technical scheme, through setting up fastening bolt to this staff fixes connecting block and fixed base block, has avoided the connecting block to break away from the condition of spout, is favorable to improving the stability of being connected between balancing weight and the fixed base block.

Preferably, the distance between the side wall of the upper clamping block close to one side of the movable block and the side wall of the upper clamping block far away from one side of the movable block is equal to the distance between the side wall of the second mounting hole close to one side of the movable block and the side wall of the second mounting hole far away from one side of the movable block; the distance between the side wall of one side, close to the movable block, of the lower clamping block and the side wall of one side, far away from the movable block, of the lower clamping block is equal to the distance between the side wall of one side, close to the movable block, of the second mounting hole and the side wall of one side, far away from the movable block, of the second mounting hole.

Through adopting above-mentioned technical scheme, make the lateral wall that the fixture block is close to movable block one side laminate with the lateral wall that the second mounting hole is close to movable block one side, go up the fixture block and keep away from the lateral wall laminate of movable block one side with the lateral wall that the second mounting hole kept away from movable block one side, and simultaneously, the lateral wall that lower fixture block is close to movable block one side laminates with the lateral wall that the second mounting hole is close to movable block one side, the lateral wall that movable block one side was kept away from to lower fixture block and the lateral wall laminate of movable block one side is kept away from to the second mounting hole, thereby the stability of being connected between last fixture block and lower fixture block and the second mounting hole has been strengthened, thereby make the linkage effect between counter weight strip and the fixed base block more stable, be favorable to.

Preferably, an electromagnet is embedded in the fixed base block, and a magnetic block is embedded in the position, corresponding to the electromagnet, of the side wall of the counterweight strip.

By adopting the technical scheme, the electromagnet generates magnetism after being electrified and attracts the magnet on the counterweight strip mutually, so that the connection effect between the counterweight strip and the fixed base block is enhanced, and the probability of shaking of the projection curtain in the projection process is further reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

in the application, when a projector and a projection screen are used for throwing in teaching contents, the projection screen is discharged from a through hole at the bottom of a screen mounting box, the projection screen vertically descends under the action of a balance weight strip, and when the position of the balance weight strip corresponds to that of a fixed base block, a teacher or a worker can fix the balance weight strip and the fixed base block by only adopting a fixing component, so that the stability of the projection screen in the projection process is enhanced, the probability of shaking of the projection screen in the projection process is reduced, and students can normally watch the teaching contents thrown in by the projector;

in the application, when the projection screen vertically descends until the position of the counterweight strip corresponds to the position of the fixed base block, a teacher or a worker only needs to push the movable column to one side far away from the counterweight strip, and the sucker is firmly adsorbed on the projection wall, then, the worker needs to press the upper slide bar and the lower slide bar simultaneously, so that the upper clamping block is matched with the lower clamping block and the spring is compressed, the upper clamping block and the lower clamping block can conveniently pass through the first mounting hole, under the action of the elasticity of the spring, the upper fixture block is clamped with the second mounting hole above the through hole, the lower fixture block is clamped with the second mounting hole below the through hole, therefore, the counterweight strip and the fixed base block are fixed, the stability of the counterweight strip and the projection curtain in the projection process of the projector is enhanced, and the probability that students normally watch projection contents are influenced due to the fact that the projection curtain shakes in the projection process is reduced;

in this application, take place easily after the sucking disc uses a period and damage, influence the stability of being connected between activity post and the projection wall, at this moment, the staff only needs upwards to stimulate fixed base block for the connecting block is followed the upper end opening roll-off of spout, and the staff of so being convenient for will fix base block, activity post and sucking disc and dismantle, and change the sucking disc of damage.

Drawings

Fig. 1 is a schematic plan view of a remote interactive teaching system according to an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a remote interactive teaching system according to an embodiment of the present application.

Fig. 3 is a partial sectional view of the structure of fig. 2.

Fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.

Fig. 5 is a partially enlarged schematic view of a portion B in fig. 3.

Description of reference numerals: 1. a cloud data platform; 2. a teaching subsystem; 21. a teaching host; 22. a real object exhibition stand; 23. a router; 24. an output device; 241. a projector; 242. a curtain mounting box; 243. a projection screen; 244. sounding; 245. a rotating shaft; 246. a motor; 3. fixing the base block; 31. a chute; 4. a fixing assembly; 41. mounting a plate; 411. connecting blocks; 412. fastening a bolt; 413. perforating; 42. a movable post; 43. a suction cup; 44. a movable block; 45. a sliding rod is arranged; 46. an upper clamping block; 461. chamfering; 47. a lower sliding rod; 48. a lower clamping block; 481. lower chamfering; 49. a spring; 5. a weight strip; 51. a first mounting hole; 52. a second mounting hole; 6. an electromagnet; 7. a magnetic block.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a remote interactive teaching system. Referring to fig. 1, the remote interactive teaching system comprises a cloud data platform 1 and a plurality of teaching subsystems 2, each teaching subsystem 2 is arranged in each classroom, the cloud data platform 1 is connected with each teaching subsystem 2 through a network and can perform data communication, and the cloud data platform 1 acquires video and audio data of each teaching subsystem 2 and stores the video and audio data.

Referring to fig. 1 and 2, each group of teaching subsystems 2 has the same structure, each teaching subsystem 2 is composed of a teaching host 21, a material object exhibition stand 22, a router 23 and an output device 24, and the output device 24 includes a projector 241, a curtain mounting box 242, a projection curtain 243 and a sound 244. The projector 241 is fixedly mounted on the ceiling wall in the classroom, the curtain mounting box 242 is a hollow rectangular box-shaped structure, the curtain mounting box 242 is horizontal in the length direction, and the curtain mounting box 242 is fixed on the position of the projection wall near the top of the projection wall. A rotating shaft 245 is arranged in the curtain mounting box 242, the rotating shaft 245 is a horizontally arranged round rod-shaped structure, one end of the rotating shaft 245 penetrates through the side wall of one end of the curtain mounting box 242 and is rotatably connected with the side wall, and the other end of the rotating shaft 245 penetrates through the side wall of the other end of the curtain mounting box 242 and is rotatably connected with the side wall. The projection curtain 243 is disposed in the curtain mounting box 242, and is wound around the rotating shaft 245, and a through hole (not shown) for the projection curtain 243 to pass through is formed on the bottom wall of the curtain mounting box 242. The speakers 244 stand on the floor of the classroom, and the number of the speakers 244 is two, and the two speakers 244 are symmetrically disposed on both sides of the front of the classroom.

Referring to fig. 2, a motor 246 is fixed to an outer side wall of one end of the curtain mounting box 242, an axis of an output shaft of the motor 246 coincides with an axis of a rotating shaft 245, and an end of the output shaft of the motor 246 is fixed to one end of the rotating shaft 245. One end of the projection curtain 243 far away from the rotating shaft 245 is fixed with a counterweight strip 5, and the counterweight strip 5 is a strip-shaped structure with a rectangular cross section. After the motor 246 works, the rotating shaft 245 is driven to rotate, and under the action of the gravity of the weight bar 5, the projection screen 243 wound on the rotating shaft 245 is gradually unwound from the rotating shaft 245, so that the projector 241 (see fig. 1) projects the teaching content onto the surface of the projection screen 243.

Referring to fig. 3, a fixed base block 3 is fixed to a projection wall below the curtain mounting box 242, the fixed base block 3 has a block-shaped structure with a rectangular cross section, and a length direction of the fixed base block 3 is parallel to a length direction of the weight bar 5. Referring to fig. 4, a sliding groove 31 is formed on an intersecting edge between the side wall of the end of the fixed base block 3 and the upper surface thereof, the cross section of the sliding groove 31 is dovetail-shaped, and the extending direction of the sliding groove 31 is vertical. The fixed base block 3 is provided with a fixed assembly 4 for fixing the counterweight strip 5 and the fixed base block 3, and the fixed assembly 4 comprises a mounting plate 41, a movable column 42, a sucker 43, a movable block 44, an upper slide rod 45, an upper clamping block 46, a lower slide rod 47, a lower clamping block 48 and a spring 49. The mounting plate 41 is a vertically arranged rectangular plate-shaped structure, and is disposed at a position of the fixed base block 3 close to the end of the fixed base block 3, and a connecting block 411 is fixed on a side wall of the mounting plate 41 close to one side of the end of the fixed base block 3. The connecting block 411 is a block-shaped structure with a dovetail-shaped cross section, the extending direction of the connecting block is parallel to the extending direction of the sliding groove 31, the connecting block 411 is in sliding fit with the sliding groove 31, and a fastening bolt 412 is arranged on the connecting block 411. The axial direction of fastening bolt 412 is parallel with the length direction of counter weight strip 5, and its run-through sets up on connecting block 411 and with clearance fit, and fastening bolt 412 runs through behind the connecting block 411 with fixed base block 3 threaded connection to this the staff is convenient for to connecting block 411 installation or dismantlement, thereby installs or dismantles mounting panel 41.

Referring to fig. 4, the movable column 42 is a cylindrical structure, the axis of which is perpendicular to the axis of the fastening bolt 412, and the movable column 42 is disposed on the side of the mounting plate 41 away from the weight bar 5. The sucking disc 43 is a disc-shaped structure, the axis of the sucking disc 43 coincides with the axis of the movable column 42, the sucking disc 43 and one end of the movable column 42, which is far away from the mounting plate 41, are fixed, and the sucking disc 43 is made of silicon rubber and has stronger suction force. The movable block 44 is a rectangular block structure, and is disposed on one side of the mounting plate 41 away from the counterweight strip 5, and a side wall of the movable block 44 away from one side of the counterweight strip 5 is fixed to one end of the movable column 42 close to the counterweight strip 5. The upper sliding rod 45 is a square rod-shaped structure, and is connected with the side wall of the movable block 44 far away from the suction cup 43 in a sliding manner, and a through hole 413 for the upper sliding rod 45 to slide up and down is formed in the mounting plate 41 in a penetrating manner. The upper latch 46 is a rectangular block structure, and the side wall of the upper latch close to the suction cup 43 is fixed to one end of the upper slide rod 45 far away from the suction cup 43. The lower slide rod 47 is a square rod structure, and is slidably connected to the side wall of the movable block 44 on the side away from the suction cup 43, and the lower slide rod 47 penetrates through the through hole 413 and is slidably connected thereto. The lower latch 48 is a rectangular block structure, and the side wall of the lower latch 48 close to the suction cup 43 is fixed to the end of the lower slide rod 47 far away from the suction cup 43. The spring 49 is vertical in the expansion and contraction direction and is arranged between the lower sliding rod 47 and the upper sliding rod 45, the upper end of the spring 49 is fixed with the bottom surface of the upper sliding rod 45, and the lower end of the spring 49 is fixed with the upper surface of the lower sliding rod 47.

Referring to fig. 4, a first mounting hole 51 is formed in a side wall of the weight bar 5 close to the suction cup 43, a cross section of the first mounting hole 51 is rectangular, and when a distance between an inner top wall and an inner bottom wall of the first mounting hole 51 is greater than or equal to a distance between an upper surface of the upper latch 46 and a bottom surface of the lower latch 48 when the spring 49 is in an original length state, the upper latch 46 and the lower latch 48 can conveniently pass through the first mounting hole 51 simultaneously. Second mounting hole 52 is formed in the upper surface of counterweight strip 5 in a penetrating manner, the extending direction of second mounting hole 52 is vertical, second mounting hole 52 is communicated with first mounting hole 51, the side walls of two sides of upper fixture block 46 are respectively attached to the side walls of two sides of second mounting hole 52, and the side walls of two sides of lower fixture block 48 are respectively attached to the side walls of two sides of second mounting hole 52. Referring to fig. 3, to enhance the stability of the projection screen 243 during projection, a worker first needs to start the motor 246, to gradually lower the projection screen 243 under the action of the weight bar 5, when the position of the weight bar 5 corresponds to the position of the fixed base block 3, the worker needs to push the movable post 42 to a side away from the weight bar 5 until the suction cup 43 is firmly attached to the projection wall, and at this time, the worker needs to press the upper sliding rod 45 and the lower sliding rod 47 simultaneously to contract the spring 49, and simultaneously push the weight bar 5 to a side close to the mounting plate 41, so that the upper fixture block 46 and the lower fixture block 48 simultaneously pass through the first through hole 413, and when the upper fixture block 46 and the lower fixture block 48 move to the second through hole 413, the upper sliding rod 45 and the lower sliding rod 47 are reset under the elastic force of the spring 49, and the upper fixture block 46 is clamped with the second through hole 413 above the first mounting hole 51, the lower fixture block 48 is clamped with the second through hole 413 below the first mounting hole 51, so that the counterweight strip 5 and the mounting plate 41 on the fixed base block 3 have good connection stability, which is beneficial to enhancing the stability of the projection curtain 243 in the projection process and reducing the possibility of the projection curtain 243 shaking in the projection process.

Referring to fig. 4, an upper chamfer 461 is formed on an intersecting edge between the upper surface of the upper latch 46 and the side wall of the upper latch 46 far away from the movable block 44, a lower chamfer 481 is formed on an intersecting edge between the bottom surface of the lower latch 48 and the side wall of the lower latch 48 far away from the movable block 44, and the upper chamfer 461 and the lower chamfer 481 are arranged, so that the difficulty of the upper latch 46 and the lower latch 48 in penetrating through the first through hole 413 is reduced. The distance between the side wall of the upper fixture block 46 close to the movable block 44 and the side wall of the upper fixture block 46 far from the movable block 44 is equal to the distance between the side wall of the second installation hole 52 close to the movable block 44 and the side wall of the second installation hole 52 far from the movable block 44. The distance between the side wall of the lower fixture block 48 close to the movable block 44 and the side wall of the lower fixture block 48 far from the movable block 44 is equal to the distance between the side wall of the second mounting hole 52 close to the movable block 44 and the side wall of the second mounting hole 52 far from the movable block 44, so that the upper fixture block 46 and the lower fixture block 48 are stably positioned in the second mounting hole 52, and the probability of looseness of connection between the weight bar 5 and the mounting plate 41 is reduced.

Referring to fig. 5, the fixed base block 3 is embedded with the electromagnet 6 in the side wall close to the counterweight strip 5, the magnetic block 7 is embedded in the side wall of the counterweight strip 5, the position of the magnetic block 7 corresponds to the position of the electromagnet 6, and after the electromagnet 6 is electrified, the electromagnet can be magnetically attracted with the magnetic block 7, so that the connection effect between the counterweight strip 5 and the fixed base block 3 is enhanced, and the condition that the counterweight strip 5 and the fixed base block 3 are connected loosely due to the fact that the sucker 43 (see fig. 4) falls off from the projection wall is avoided.

The implementation principle of the remote interactive teaching system in the embodiment of the application is as follows: when using projecting apparatus 241 and projection curtain 243 to put in the teaching content, the projection curtain 243 is emitted from the through-hole of curtain mounting box 242 bottom, under the counter weight effect of counter weight strip 5, vertical decline of projection curtain 243, when the position of counter weight strip 5 corresponds with the position of fixed base block 3, teacher or staff only need adopt fixed subassembly 4 can be fixed with counter weight strip 5 and fixed base block 3, thereby the stability of projection curtain 243 in the projection process has been strengthened, the probability that the projection curtain 243 takes place the shake in the projection process has been reduced, so that the student normally watches the teaching content that projecting apparatus 241 puts in.

In this application, to enhance the stability of the projection curtain 243 in the projection process, a worker first needs to start the motor 246, to gradually lower the projection curtain 243 under the action of the weight bar 5, when the position of the weight bar 5 corresponds to the position of the fixed base block 3, the worker needs to push the movable post 42 to the side away from the weight bar 5 until the suction cup 43 is firmly attached to the projection wall, at this time, the worker needs to simultaneously press the upper sliding rod 45 and the lower sliding rod 47 to contract the spring 49, and simultaneously push the weight bar 5 to the side close to the mounting plate 41, so that the upper fixture block 46 and the lower fixture block 48 simultaneously pass through the first through hole 413, when the upper fixture block 46 and the lower fixture block 48 move to the second through hole 413, under the elastic force of the spring 49, the upper sliding rod 45 and the lower sliding rod 47 return, the upper fixture block 46 is clamped with the second through hole 413 above the first mounting hole 51, the lower fixture block 48 is clamped with the second through hole 413 below the first mounting hole 51, so that the counterweight strip 5 and the mounting plate 41 on the fixed base block 3 have good connection stability, which is beneficial to enhancing the stability of the projection curtain 243 in the projection process and reducing the possibility of the projection curtain 243 shaking in the projection process.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a long-range interactive teaching system, includes high in the clouds data platform (1) and teaching subsystem (2), high in the clouds data platform (1) is through internet access teaching subsystem (2) and can carry out data communication, teaching subsystem (2) comprise teaching host computer (21), stand in kind (22), router (23) and output device (24), its characterized in that: output device (24) include projecting apparatus (241), curtain mounting box (242), projection curtain (243) and stereo set (244), be fixed with fixed base block (3) on the projection wall of curtain mounting box (242) below, install axis of rotation (245) rather than the inside wall at both ends all rotates and is connected in curtain mounting box (242), projection curtain (243) are convoluteed on axis of rotation (245), the through-hole that supplies projection curtain (243) to pass is seted up to curtain mounting box (242) diapire, projection curtain (243) lower extreme is fixed with counter weight strip (5), install on fixed base block (3) and be used for fixed subassembly (4) fixed with counter weight strip (5) and fixed base block (3).

2. The remote interactive teaching system of claim 1 wherein: the fixed component (4) comprises a mounting plate (41) arranged at the end part of the fixed base block (3), a movable column (42) arranged at one side of the mounting plate (41) far away from the counterweight strip (5), a sucker (43) fixed with one end of the movable column (42) far away from the counterweight strip (5), a movable block (44) fixed with one end of the movable column (42) close to the counterweight strip (5), an upper slide rod (45) slidably mounted on the side wall of one side of the movable block (44) far away from the movable column (42), an upper clamping block (46) fixed with one end of the upper slide rod (45) far away from the movable block (44), a lower slide rod (47) slidably mounted on the side wall of one side of the movable block (44) far away from the movable column (42), a lower clamping block (48) fixed with one end of the lower slide rod (47) far away from the movable block (44), and a spring (49) arranged between the, the utility model discloses a counter weight strip (5) is including fixing weight strip (5) on the wall, the movable block (44) is located mounting panel (41) and keeps away from one side of counter weight strip (5), run through on mounting panel (41) and set up perforation (413) that supply slide bar (45) and lower slide bar (47) passed simultaneously, counter weight strip (5) are close to on the lateral wall of sucking disc (43) one side set up supply fixture block (46) and lower fixture block (48) first mounting hole (51) that pass simultaneously, counter weight strip (5) upper surface runs through set up second mounting hole (52) with first mounting hole (51) intercommunication, it all cooperates with second mounting hole (52) joint with fixture block (48) down to go up fixture block (46).

3. The remote interactive teaching system of claim 2, wherein: an upper chamfer (461) is formed on an intersecting edge between the upper surface of the upper clamping block (46) and the side wall of the upper clamping block (46) far away from the movable block (44), and a lower chamfer (481) is formed on an intersecting edge between the bottom surface of the lower clamping block (48) and the side wall of the lower clamping block (48) far away from the movable block (44).

4. The remote interactive teaching system of claim 2, wherein: the one end that mounting panel (41) are close to fixed base block (3) is fixed with connecting block (411), fixed base block (3) upper surface sets up spout (31) of being connected with connecting block (411) slide on rather than being close to the crossing arris between the lateral wall of mounting panel (41) one side.

5. The remote interactive teaching system of claim 4, wherein: the cross section of the sliding groove (31) and the cross section of the connecting block (411) are both in a dovetail shape.

6. The remote interactive teaching system of claim 5, wherein: the connecting block (411) is provided with a fastening bolt (412) in a penetrating mode, the fastening bolt (412) penetrates through the connecting block (411) and is in clearance fit with the connecting block, and the fastening bolt (412) penetrates through the connecting block (411) and then is in threaded connection with the fixed base block (3).

7. The remote interactive teaching system of claim 2, wherein: the distance between the side wall of one side, close to the movable block (44), of the upper clamping block (46) and the side wall of one side, far away from the movable block (44), of the upper clamping block (46) is equal to the distance between the side wall of one side, close to the movable block (44), of the second mounting hole (52) and the side wall of one side, far away from the movable block (44), of the second mounting hole (52); the distance between the side wall of one side, close to the movable block (44), of the lower fixture block (48) and the side wall of one side, far away from the movable block (44), of the lower fixture block (48) is equal to the distance between the side wall of one side, close to the movable block (44), of the second mounting hole (52) and the side wall of one side, far away from the movable block (44), of the second mounting hole (52).

8. The remote interactive teaching system of claim 2, wherein: an electromagnet (6) is embedded in the fixed base block (3), and a magnetic block (7) is embedded in the position, corresponding to the electromagnet (6), of the side wall of the counterweight strip (5).