CN113495409A

CN113495409A - Teaching projecting apparatus based on thing networking

Info

Publication number: CN113495409A
Application number: CN202110559899.0A
Authority: CN
Inventors: 陈淇桦; 王晓勇
Original assignee: Individual
Current assignee: Shenzhen Wancheng Jiahe Electronic Co ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2021-10-12
Anticipated expiration: 2041-05-21
Also published as: CN113495409B

Abstract

The invention relates to the technical field of projectors, in particular to a teaching projector based on the Internet of things, which comprises a fixed seat fixedly mounted on a wall top wall and a projector mounted at the bottom end of the fixed seat, wherein a mounting rod is fixedly mounted on the wall top wall of the projector and mounted at the bottom end of the fixed seat, an anti-falling plate is arranged at the bottom end of the projector, a fixed plate is mounted on the wall top wall on one side of the anti-falling plate, the top end of the fixed plate is fixed on the wall top wall, and a dustproof mechanism matched with the projector is mounted on the anti-falling plate. According to the invention, when the projector is not used, the anti-falling plate, the fixing plate, the U-shaped baffle plate and the U-shaped top plate are used for sealing the projector, so that impurities such as dust in the air can be prevented from continuously falling on the projector, the heat dissipation effect of the projector is improved, the use effect of the projector is improved, and the service life of the projector is prolonged.

Description

Teaching projecting apparatus based on thing networking

Technical Field

The invention relates to the technical field of projectors, in particular to a teaching projector based on the Internet of things.

Background

The projector is a device capable of projecting images or videos onto a curtain, and can be connected with a computer, a VCD, a DVD, a BD, a game machine, a DV and the like through different interfaces and play corresponding video signals, and the Internet of things means that the projector is connected with an advanced Internet of things in the using process of the existing projector through various devices and technologies such as various information sensors, a radio frequency identification technology, a global positioning system, an infrared sensor, a laser scanner and the like, so that the requirements of social science and technology development are met better.

Through the retrieval, chinese patent No. CN108573622B discloses a projector for multimedia teaching, including two mounting panels, remove the seat, two connecting pieces, storage box and projector body, the bottom face of mounting panel is through being equipped with the guide rail, be equipped with the lead screw between two guide rails, the cover is equipped with the removal seat with guide rail matched with on the lead screw, the bottom face left and right sides symmetry of removing the seat is equipped with the connecting piece, storage box's top face central authorities are equipped with the venthole, storage box's left and right sides end symmetry through connection intake pipe, the inner chamber of intake pipe is equipped with the fan of breathing in, dust filter screen and protection network from inside to outside in proper order, storage box's bottom is equipped with the preset hole, the downthehole sealing door that is equipped with of preset, the top of sealing door is equipped with the projector body.

The existing projector for multimedia teaching has the following defects: in order to avoid dust to gather and lead to the radiating effect variation of projecting apparatus on the projecting apparatus and close the projector and install in the storage box, however install the projecting apparatus and can lead to the radiating effect further variation of projecting apparatus in the confined storage box, although use the suction fan to dispel the heat to the projecting apparatus, can lead to the radiating effect not obvious because the installation space of projecting apparatus is sealed, and the suction fan during operation still can inhale impurity such as dust in the external environment in the storage box and lead to the dust to gather on the storage box, consequently can lead to the radiating effect further variation of projecting apparatus.

Therefore, a teaching projector based on the Internet of things is provided.

Disclosure of Invention

The invention aims to provide a teaching projector based on the Internet of things, which solves the problems in the background technology in a mode of preventing dust from accumulating on the projector by sealing the projector inside a falling prevention plate, a fixing plate, a U-shaped baffle plate and a U-shaped top plate when the projector is not used.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a teaching projecting apparatus based on thing networking, includes the fixing base of fixed mounting on the wall roof and installs the projecting apparatus in the fixing base bottom, fixed mounting has the installation pole on the roof of projecting apparatus, and installs the bottom at the fixing base at the installation pole, the bottom of projecting apparatus is equipped with prevents weighing down the board, prevent weighing down and install the fixed plate on the roof of board one side, and the top of fixed plate is fixed on the wall roof, prevent weighing down and install the dustproof mechanism who mutually supports with the projecting apparatus on the board:

the dustproof mechanism comprises a U-shaped baffle movably mounted on the anti-falling plate and a driving mechanism mutually matched with the U-shaped baffle, the U-shaped baffle vertically penetrates through the anti-falling plate, the driving mechanism comprises a servo motor fixedly mounted on the fixed plate, the output end of the servo motor is provided with a driving shaft, two lead screws are symmetrically and rotatably mounted on the top wall of the anti-falling plate, two connecting blocks are symmetrically and fixedly mounted on the inner side wall of one side, close to the fixed plate, of the U-shaped baffle, the two lead screws respectively penetrate through the two connecting blocks and are respectively in threaded engagement with the two connecting blocks, a transmission mechanism is arranged between the driving shaft and the two lead screws, a soot blowing mechanism mutually matched with the projector is mounted on the fixed plate, the soot blowing mechanism is driven by the servo motor, the anti-falling plate is slidably connected to the bottom end of the fixed plate, and a connecting mechanism is arranged between the anti-falling plate and the fixed plate, the anti-falling plate is provided with a protection mechanism which is matched with the projector.

The servo motor is started to drive the driving shaft to drive the lead screws to periodically rotate through the transmission mechanism, the two lead screws are respectively in threaded engagement with the two connecting blocks, therefore, the lead screws can drive the two connecting blocks and the U-shaped baffle to move up and down, when the projector is used, the U-shaped baffle is moved to the bottom end of the anti-falling plate, an image or a video can be projected onto a curtain by using the projector, after the use is finished, the U-shaped baffle is moved up and blocked at the outer side of the projector, and at the moment, the anti-falling plate, the fixing plate and the U-shaped baffle are jointly blocked at the outer side of the projector, so that excessive dust can be prevented from accumulating on the projector, the heat dissipation effect of the projector is improved, the use effect of the projector is improved, and the service life of the projector is prolonged; the anti-falling plate is positioned at the bottom end of the projector, so that the projector can fall on the anti-falling plate at the bottom end even if the projector falls down carelessly, safety accidents caused by direct falling of the projector can be avoided, and the use safety of the projector is improved; the anti-falling plate is connected to the bottom end of the fixed plate in a sliding mode, and the anti-falling plate is pushed to one end of the fixed plate when the projector is disassembled and assembled, so that the anti-falling plate can be prevented from obstructing the installation of the projector, and the disassembling and assembling difficulty of the projector is reduced; the protection mechanism can indicate when the projector falls onto the anti-falling plate, so that the projector can be found in time to fall, the long-time bearing of the anti-falling plate is avoided, and the use safety of the projector is further improved.

Preferably, the transmission mechanism comprises a driving gear fixedly mounted on the outer side wall of the driving shaft, two first rotating rods are symmetrically and rotatably mounted on the outer side wall of the top end of the fixed plate and are respectively positioned at two sides of the driving shaft, intermediate gears meshed with the driving gear are fixedly mounted on the outer side walls of the two first rotating rods, two second rotating rods are symmetrically and rotatably mounted on the outer side wall of the top end of the fixed plate and are respectively positioned at two sides of the two first rotating rods, transmission gears meshed with the intermediate gears are fixedly mounted on the outer side walls of the two second rotating rods, first bevel gears are fixedly mounted at one ends of the two second rotating rods close to the screw rods, second bevel gears meshed with the first bevel gears are fixedly mounted at the top ends of the two screw rods, and U-shaped top plates matched with the U-shaped baffle are fixedly mounted on the outer side wall of the top end of the fixed plate, and the top end of the screw rod and the second bevel gear are both positioned on the inner side of the U-shaped top plate.

The servo motor is started to drive the driving shaft to drive the driving gear, the intermediate gear, the first rotating rod, the transmission gear, the second rotating rod, the first bevel gear, the second bevel gear and the two screw rods to rotate periodically, the two screw rods are respectively meshed with the two connecting blocks in a threaded manner, therefore, the screw rod can drive the two connecting blocks and the U-shaped baffle to move up and down through periodic rotation, when the projector is used, the U-shaped baffle is moved to the bottom end of the anti-falling plate, images or videos can be projected onto a curtain through the projector, after the use is finished, the U-shaped baffle is moved upwards, the top end of the U-shaped baffle is attached to the bottom wall of the U-shaped top plate, and at the moment, the anti-falling plate, the fixing plate, the U-shaped baffle and the U-shaped top plate are covered on the outer side of the projector, therefore, dust can be prevented from continuously falling on the projector, the heat dissipation effect of the projector is improved, the use effect of the projector is improved, and the service life of the projector is prolonged.

Preferably, soot blower constructs including evenly rotating a plurality of first bull sticks of installing on the fixed plate, every equal fixed mounting has intermediate gear, adjacent two on the lateral wall of first bull stick intermediate gear all intermeshing, and the intermediate gear that is located the top all meshes with driving gear or drive gear, every equal fixed mounting has a plurality of flabellums on the lateral wall that fixed plate one end was kept away from to first bull stick.

The drive shaft rotates and drives first bull stick when U type baffle makes progress or moves down and all follows the rotation, can drive the flabellum rotation of installing in first bull stick one end when first bull stick rotates, and the flabellum can blow to projecting apparatus one side and blow off a small number of dusts that fall on the projecting apparatus this moment, has further improved the radiating effect of projecting apparatus to the result of use of projecting apparatus has further been promoted and the life of projecting apparatus has been prolonged.

Preferably, two the connecting blocks are all connected on the inside wall on U type baffle top.

Connecting block and U type baffle of being convenient for when two connecting blocks drive U type baffle downstream paste tightly on the roof of preventing weighing down the board, thereby can avoid U type baffle to block the projecting apparatus and influence the normal use of projecting apparatus, connecting block and U type baffle of being convenient for paste tightly the bottom at U type roof when two connecting blocks drive U type baffle upstream, thereby promoted and prevented weighing down the board, the fixed plate, the leakproofness that U type baffle and U type roof are connected, the dustproof effect to the projecting apparatus has been improved, thereby the radiating effect of projecting apparatus has been promoted and the life of projecting apparatus has been prolonged.

Preferably, coupling mechanism includes two fixed blocks of fixed mounting on preventing weighing down the board roof, and two fixed blocks are located the both ends of preventing weighing down the board respectively, fixed mounting has two stoppers of mutually supporting with the fixed block, two on the lateral wall that the fixed plate is close to fixed block one side the stopper is located the both ends of fixed plate respectively, and two stoppers and two fixed blocks crisscross setting each other, two equal fixed mounting has the magnetic block with stopper inter attraction on being close to the lateral wall of stopper one side.

After the anti-falling plate is moved to one end of the fixed plate, the fixed block positioned between the two limit blocks can be contacted with one limit block, thereby preventing the fixed block and the anti-falling plate from falling off from the limiting block and the fixed plate, moving the anti-falling plate to the bottom end of the projector, at the moment, the two fixed blocks are respectively contacted with the two limit blocks, and the two magnetic blocks are respectively tightly absorbed on the two limit blocks, thereby preventing the fixed block and the anti-falling plate from continuously deviating, ensuring that the magnetic attraction force between the two magnetic blocks and the limiting block is larger, the second bevel gear, the screw rod and the anti-falling plate are prevented from shifting relative to the fixed plate when the second rotating rod and the first bevel gear drive the second bevel gear and the screw rod to rotate, the working stability of the transmission structure and the dustproof mechanism is improved, the dustproof effect of the dustproof mechanism is improved, the using effect of the projector is further improved, and the service life of the projector is prolonged.

Preferably, set up the spread groove of mutually supporting with the installation pole on the diapire of fixing base, and the one end of spread groove extends to the outside of fixing base, symmetry fixed mounting has two spacing slides on the lateral wall on installation pole top, two spacing spouts of mutually supporting with spacing slide have been seted up to the symmetry on the inside wall of spread groove, be equipped with the location structure of mutually supporting with spacing slide and installation pole on the fixing base.

Insert the top of installing the pole and establish to the spread groove in and be connected to two spacing spouts respectively with two spacing slides in, remove installation pole and spacing slide and with the inside wall contact of spacing slide and spacing spout one end just can be with spacing slide, installation pole and projecting apparatus fixed mounting on the fixing base, avoid using bolt or screw to install pole and projecting apparatus at less installation space and higher mounted position and fix, the installation degree of difficulty of installation pole and projecting apparatus has been reduced, thereby the convenience that the projecting apparatus used has been promoted.

Preferably, the location structure includes that the activity is inserted and is established the spacing inserted bar on fixing base one side lateral wall, and the one end of spacing inserted bar extends to the spread groove in, one of them set up the spacing jack of mutually supporting with spacing inserted bar on the spacing slide, set up the activity groove of mutually supporting with spacing inserted bar on the lateral wall of fixing base one side, the one end fixed mounting of spacing inserted bar has the end plate, and the end plate pastes the outside tightly at the activity groove, install the handle on the end plate, the activity is inserted and is equipped with a plurality of movable rods on the inside wall in activity groove, and the equal fixed connection in one end of movable rod is on the end plate, every all around being equipped with reset spring on the lateral wall of movable rod, and reset spring's both ends difference fixed connection is on the inside wall and the end plate of activity groove.

Stimulate the end plate earlier and stimulate spacing inserted bar to the outside of spacing spout, then remove installation pole and spacing slide and with the inside wall contact of spacing slide and spacing spout one end, not hard up end plate, reset spring can stimulate end plate and spacing inserted bar to the removal of spacing slide and insert the one end of spacing inserted bar and establish to the spacing jack on the spacing slide owing to resume self elasticity this moment, thereby can be with spacing slide, the installation pole, and projecting apparatus fixed mounting is on the fixing base, the stability of installation pole and projecting apparatus installation has been promoted, thereby further promoted the security that the projecting apparatus used.

Preferably, protection machanism includes the layer board of mutually supporting with the projecting apparatus, and the layer board is located the downside of projecting apparatus, a plurality of damping spring are installed to the diapire of layer board and the roof of preventing weighing down the board between, prevent weighing down and install the pilot lamp on the diapire of board, install the shift knob who is connected with the pilot lamp on the roof of layer board.

The projector can directly fall on the top end of the supporting plate after falling, and the damping spring at the bottom end of the supporting plate can play a damping protection effect on the supporting plate and the projector, so that the projector can be prevented from directly falling on the top wall of the supporting plate to be damaged, and the service life of the projector is prolonged; the projecting apparatus drops and can push down shift knob and open the pilot lamp to the layer board on back, just can in time discover that the projecting apparatus has taken place to drop after the pilot lamp is opened, consequently is convenient for in time to install the projecting apparatus again to the security that the projecting apparatus used has further been promoted.

Compared with the prior art, the invention has the beneficial effects that:

1. the anti-falling plate, the fixing plate, the U-shaped baffle plate and the U-shaped top plate are used for sealing the projector when the projector is not used, so that impurities such as dust in the air can be prevented from continuously falling on the projector, the heat dissipation effect of the projector is improved, the using effect of the projector is improved, and the service life of the projector is prolonged.

2. First bull stick all follows the rotation when U type baffle reciprocates, can drive when first bull stick rotates and install the flabellum rotation in first bull stick one end, and the flabellum can be bloied and blow off a small number of dusts that fall on the projecting apparatus to projecting apparatus one side this moment, has further improved the radiating effect of projecting apparatus to the result of use of projecting apparatus has further been promoted and the life of projecting apparatus has been prolonged.

3. The bottom slidable mounting of fixed plate has the board of preventing weighing down of mutually supporting with the projecting apparatus, will prevent during dismouting projecting apparatus that the board removed to the one end of fixed plate, will prevent weighing down the board and remove to the bottom of projecting apparatus after the projecting apparatus installation, neither influences the dismouting of projecting apparatus, also can avoid the projecting apparatus directly to take place to fall to the security that the projecting apparatus used has been promoted.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front sectional view of the U-shaped baffle of the present invention at the topmost position;

FIG. 3 is a schematic front view of the U-shaped baffle of the present invention at the topmost position;

FIG. 4 is a schematic front view of the U-shaped baffle of the present invention at the bottom end;

FIG. 5 is a top view of the tip section configuration of the present invention;

fig. 6 is an enlarged view of the structure of part a of the present invention.

In the figure: 1. a fixed seat; 2. a projector; 3. fastening screws; 4. mounting a rod; 5. an anti-falling plate; 6. a fixing plate; 7. a U-shaped baffle plate; 8. a servo motor; 9. a drive shaft; 10. a screw rod; 11. connecting blocks; 12. a driving gear; 13. a first rotating lever; 14. an intermediate gear; 15. a second rotating rod; 16. a transmission gear; 17. a first bevel gear; 18. a second bevel gear; 19. a fan blade; 20. a U-shaped top plate; 21. a T-shaped plate; 22. a T-shaped groove; 23. a fixed block; 24. a limiting block; 25. a magnetic block; 26. a limiting sliding plate; 27. a limiting chute; 28. a limiting inserted rod; 29. limiting the jacks; 30. a movable groove; 31. an end plate; 32. a handle; 33. a movable rod; 34. a return spring; 35. a support plate; 36. a damping spring; 37. an indicator light; 38. and a button is switched on and off.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 6, the invention provides a teaching projector based on the internet of things, and the technical scheme is as follows:

the utility model provides a teaching projecting apparatus based on thing networking, include fixing base 1 of fixed mounting on the wall roof and install the projecting apparatus 2 in 1 bottom of fixing base, evenly insert on the diapire of fixing base 1 and be equipped with a plurality of fastening screw 3, and fastening screw 3 all runs through fixing base 1 and threaded connection on the wall roof, fixed mounting has installation pole 4 on the roof of projecting apparatus 2, and install pole 4 in the bottom of fixing base 1, the bottom of projecting apparatus 2 is equipped with prevents weighing down board 5, prevent installing fixed plate 6 on the roof of weighing down board 5 one side, and the top of fixed plate 6 is fixed on the wall roof, prevent weighing down and install the dustproof mechanism who mutually supports with projecting apparatus 2 on the board 5:

the dustproof mechanism comprises a U-shaped baffle 7 movably mounted on the anti-falling plate 5 and a driving mechanism matched with the U-shaped baffle 7, the U-shaped baffle 7 vertically penetrates through the anti-falling plate 5, the driving mechanism comprises a servo motor 8 fixedly mounted on a fixed plate 6, a driving shaft 9 is mounted at the output end of the servo motor 8, two lead screws 10 are symmetrically and rotatably mounted on the top wall of the anti-falling plate 5, two connecting blocks 11 are symmetrically and fixedly mounted on the inner side wall of the U-shaped baffle 7 close to one side of the fixed plate 6, the two lead screws 10 are respectively arranged by penetrating through the two connecting blocks 11, the two lead screws 10 are respectively in threaded engagement with the two connecting blocks 11, a transmission mechanism is arranged between the driving shaft 9 and the two lead screws 10, a soot blowing mechanism matched with the projector 2 is mounted on the fixed plate 6, the soot blowing mechanism is driven by the servo motor 8, and the anti-falling plate 5 is slidably connected to the bottom end of the fixed plate 6, and a connecting mechanism is arranged between the anti-falling plate 5 and the fixed plate 6, and a protection mechanism matched with the projector 2 is arranged on the anti-falling plate 5.

The servo motor 8 is started to drive the driving shaft 9 to drive the screw rods 10 to rotate periodically through the transmission mechanism, the two screw rods 10 are respectively meshed with the two connecting blocks 11 in a threaded mode, therefore, the two connecting blocks 11 and the U-shaped baffle 7 can be driven to move up and down through the periodic rotation of the screw rods 10, when the projector 2 is used, the U-shaped baffle 7 is moved to the bottom end of the anti-falling plate 5, an image or a video can be projected onto a curtain through the projector 2, after the use is finished, the U-shaped baffle 7 is moved upwards and blocked at the outer side of the projector 2, and at the moment, the anti-falling plate 5, the fixing plate 6 and the U-shaped baffle 7 are jointly blocked at the outer side of the projector 2, so that excessive dust can be prevented from being accumulated on the projector 2, the heat dissipation effect of the projector 2 is improved, the use effect of the projector 2 is improved, and the service life of the projector 2 is prolonged; the anti-falling plate 5 is positioned at the bottom end of the projector 2, so that the projector 2 can fall on the anti-falling plate 5 at the bottom end even if falling carelessly, safety accidents caused by direct falling of the projector 2 can be avoided, and the use safety of the projector 2 is improved; the anti-falling plate 5 is connected to the bottom end of the fixing plate 6 in a sliding manner, and the anti-falling plate 5 is pushed to one end of the fixing plate 6 when the projector 2 is disassembled and assembled, so that the anti-falling plate 5 can be prevented from obstructing the installation of the projector 2, and the disassembling and assembling difficulty of the projector 2 is reduced; the protection mechanism can indicate when the projector 2 drops to the anti-falling plate 5, so that the projector 2 can be found in time to drop to avoid long-time bearing of the anti-falling plate 5, and the use safety of the projector 2 is further improved.

As an embodiment of the present invention, referring to fig. 2 and 5, the transmission mechanism includes a driving gear 12 fixedly installed on an outer sidewall of a driving shaft 9, two first rotating levers 13 are symmetrically and rotatably installed on an outer sidewall of a top end of a fixed plate 6, the two first rotating levers 13 are respectively located on both sides of the driving shaft 9, intermediate gears 14 engaged with the driving gear 12 are fixedly installed on outer sidewalls of the two first rotating levers 13, two second rotating levers 15 are symmetrically and rotatably installed on an outer sidewall of a top end of the fixed plate 6, the two second rotating levers 15 are respectively located on both sides of the two first rotating levers 13, transmission gears 16 engaged with the intermediate gears 14 are fixedly installed on outer sidewalls of the two second rotating levers 15, first bevel gears 17 are fixedly installed on ends of the two second rotating levers 15 close to a lead screw 10, second bevel gears 18 engaged with the first bevel gears 17 are fixedly installed on top ends of the two lead screws 10, and a U-shaped top plate 20 matched with the U-shaped baffle 7 is fixedly arranged on the outer side wall of the top end of the fixing plate 6, and the top end of the screw rod 10 and the second bevel gear 18 are both positioned on the inner side of the U-shaped top plate 20.

The servo motor 8 is started to drive the driving shaft 9 to drive the driving gear 12, the intermediate gear 14, the first rotating rod 13, the transmission gear 16, the second rotating rod 15, the first bevel gear 17, the second bevel gear 18 and the two screw rods 10 to periodically rotate, the two screw rods 10 are respectively in threaded engagement with the two connecting blocks 11, so that the screw rods 10 can drive the two connecting blocks 11 and the U-shaped baffle 7 to move up and down, when the projector 2 is used, the U-shaped baffle 7 is moved to the bottom end of the anti-falling plate 5, an image or a video can be projected onto a curtain by using the projector 2, after the use is finished, the U-shaped baffle 7 is moved upwards and the top end of the U-shaped baffle 7 is attached to the bottom wall of the U-shaped top plate 20, and at the moment, the anti-falling plate 5, the fixing plate 6, the U-shaped baffle 7 and the U-shaped top plate 20 are jointly covered on the outer side of the projector 2, so that dust can be prevented from continuously falling onto the projector 2, the heat radiation effect of the projector 2 is improved, thereby improving the use effect of the projector 2 and extending the service life of the projector 2.

Referring to fig. 2, as an embodiment of the present invention, the soot blowing mechanism includes a plurality of first rotating rods 13 uniformly rotatably installed on the fixed plate 6, an intermediate gear 14 is fixedly installed on an outer side wall of each first rotating rod 13, two adjacent intermediate gears 14 are engaged with each other, the intermediate gear 14 located at the top end is engaged with the driving gear 12 or the transmission gear 16, and a plurality of blades 19 are fixedly installed on an outer side wall of one end of each first rotating rod 13 away from the fixed plate 6.

Drive shaft 9 rotates first bull stick 13 and all follows the rotation when driving U type baffle 7 upwards or the downstream, can drive the flabellum 19 of installing in first bull stick 13 one end when first bull stick 13 rotates and rotate, flabellum 19 can blow to 2 one sides of projecting apparatus and blow off a small number of dusts that fall on projecting apparatus 2 this moment, has further improved projecting apparatus 2's radiating effect to the result of use of projecting apparatus 2 has further been promoted and projecting apparatus 2's life has been prolonged.

Referring to fig. 2 and 5, as an embodiment of the present invention, two connection blocks 11 are connected to an inner sidewall of a top end of the U-shaped baffle 7.

Two connecting blocks 11 drive connecting block 11 and U type baffle 7 of being convenient for when U type baffle 7 moves down and paste tightly on preventing weighing down the roof of board 5, thereby can avoid U type baffle 7 to keep off projecting apparatus 2 and influence the normal use of projecting apparatus 2, two connecting blocks 11 drive connecting block 11 and U type baffle 7 of being convenient for when U type baffle 7 moves up and paste tightly in the bottom of U type roof 20, thereby it prevents weighing down board 5 to have promoted, fixed plate 6, the leakproofness that U type baffle 7 and U type roof 20 are connected, the dustproof effect to projecting apparatus 2 has been improved, thereby the radiating effect of projecting apparatus 2 has been promoted and projecting apparatus 2's life has been prolonged.

Fixed mounting has T template 21 on the diapire of fixed plate 6, and T template 21 level runs through and prevents weighing down the setting of board 5, prevent weighing down to set up on the board 5 and set up the T type groove 22 of mutually supporting with T template 21, prevent weighing down 5 sliding connection of board in the bottom of fixed plate 6, earlier when dismouting projecting apparatus 2 with prevent weighing down board 5 and promote the one end to fixed plate 6, consequently, can avoid preventing weighing down 5 the installation that blocks projecting apparatus 2, thereby the dismouting degree of difficulty of projecting apparatus 2 has been reduced, will prevent weighing down 5 the board and remove to projecting apparatus 2's bottom and use connection structure will prevent weighing down 5 fixedly after the installation of projecting apparatus 2, thereby can prevent that projecting apparatus 2 from directly falling, the security that projecting apparatus 2 used has been promoted.

As an implementation mode of the invention, referring to FIG. 5, the connecting structure includes two fixing blocks 23 fixedly mounted on the top wall of the anti-falling plate 5, and the two fixing blocks 23 are respectively located at two ends of the anti-falling plate 5, two limiting blocks 24 mutually matched with the fixing blocks 23 are fixedly mounted on the outer side wall of the fixing plate 6 close to one side of the fixing blocks 23, the two limiting blocks 24 are respectively located at two ends of the fixing plate 6, the two limiting blocks 24 and the two fixing blocks 23 are mutually staggered, and magnetic blocks 25 mutually attracted with the limiting blocks 24 are fixedly mounted on the outer side walls of the two fixing blocks 23 close to one side of the limiting blocks 24.

After the anti-falling plate 5 is moved to one end of the fixed plate 6, the fixed block 23 positioned between the two limit blocks 24 contacts with one limit block 24, so that the fixed block 23 and the anti-falling plate 5 can be prevented from falling off from the limit blocks 24 and the fixed plate 6, after the anti-falling plate 5 is moved to the bottom end of the projector 2, the two fixed blocks 23 respectively contact with the two limit blocks 24 and the two magnetic blocks 25 respectively tightly attract the two limit blocks 24, so that the fixed block 23 and the anti-falling plate 5 can be prevented from continuously generating position deviation, the magnetic attraction force between the two magnetic blocks 25 and the limit blocks 24 is large, the position deviation of the second bevel gear 18, the screw rod 10 and the anti-falling plate 5 relative to the fixed plate 6 can be prevented when the second rotating rod 15 and the first bevel gear 17 drive the second bevel gear 18 and the screw rod 10 to rotate, the working stability of the transmission structure and the dustproof mechanism is improved, and the dustproof effect of the dustproof mechanism is improved, thereby further improving the use effect of the projector 2 and extending the life of the projector 2.

Referring to fig. 2, as an embodiment of the present invention, a bottom wall of the fixed base 1 is provided with a connecting groove which is matched with the mounting rod 4, one end of the connecting groove extends to the outer side of the fixed base 1, two limiting sliding plates 26 are symmetrically and fixedly mounted on the outer side wall of the top end of the mounting rod 4, two limiting sliding grooves 27 which are matched with the limiting sliding plates 26 are symmetrically provided on the inner side wall of the connecting groove, and the fixed base 1 is provided with a positioning structure which is matched with the limiting sliding plates 26 and the mounting rod 4.

Insert the top of installing pole 4 and establish to the spread groove in and be connected to two spacing slides 26 respectively in two spacing spout 27, remove installation pole 4 and spacing slide 26 and with the inside wall contact of spacing slide 26 and spacing spout 27 one end just can be with spacing slide 26,

installation pole

4 and 2 fixed mounting of projecting apparatus on fixing base 1, avoid using bolt or screw to install pole 4 and projecting apparatus 2 fixedly at less installation space and higher mounted position, the installation degree of difficulty of installation pole 4 and projecting apparatus 2 has been reduced, thereby the convenience of 2 uses of projecting apparatus has been promoted.

As an embodiment of the present invention, referring to fig. 2 and 6, the positioning structure includes a limit inserting rod 28 movably inserted on an outer side wall of one side of the fixing base 1, and one end of the limit inserting rod 28 extends into the connecting groove, one of the limiting slide plates 26 is provided with a limiting jack 29 which is matched with the limiting inserted rod 28, the outer side wall of one side of the fixed seat 1 is provided with a movable groove 30 which is matched with the limiting inserted rod 28, one end of the limiting inserted rod 28 is fixedly provided with an end plate 31, the end plate 31 is tightly attached to the outer side of the movable groove 30, a handle 32 is arranged on the end plate 31, a plurality of movable rods 33 are movably inserted on the inner side wall of the movable groove 30, one end of each movable rod 33 is fixedly connected to the end plate 31, a return spring 34 is wound on the outer side wall of each movable rod 33, and both ends of the return spring 34 are fixedly connected to the inner sidewall of the movable slot 30 and the end plate 31, respectively.

Firstly pulling end plate 31 and pulling spacing inserted bar 28 to the outside of spacing spout 27, then remove installation pole 4 and spacing slide 26 and with the inside wall contact of spacing slide 26 with spacing spout 27 one end, not hard up end plate 31, reset spring 34 this moment owing to resume self elasticity can pull end plate 31 and spacing inserted bar 28 to spacing slide 26 remove and insert the one end of spacing inserted bar 28 establish to spacing jack 29 on the spacing slide 26 in, thereby can be with spacing slide 26, installation pole 4, and projecting apparatus 2 fixed mounting on fixing base 1, the stability of installation pole 4 and projecting apparatus 2 installation has been promoted, thereby further promoted the security of projecting apparatus 2 use.

Referring to fig. 2, as an embodiment of the present invention, the protection mechanism includes a supporting plate 35 which is matched with the projector 2, the supporting plate 35 is located at the lower side of the projector 2, a plurality of damping springs 36 are installed between the bottom wall of the supporting plate 35 and the top wall of the falling prevention plate 5, an indicator lamp 37 is installed on the bottom wall of the falling prevention plate 5, and a switch button 38 connected with the indicator lamp 37 is installed on the top wall of the supporting plate 35.

The projector 2 can directly fall on the top end of the supporting plate 35 after falling, and at the moment, the damping spring 36 at the bottom end of the supporting plate 35 can play a damping protection effect on the supporting plate 35 and the projector 2, so that the projector 2 can be prevented from directly falling on the top wall of the supporting plate 35 to be damaged, and the service life of the projector 2 is prolonged; projector 2 drops and presses down shift knob 38 and opens pilot lamp 37 on the layer board 35 back, just can in time discover that projector 2 has taken place to drop after pilot lamp 37 opens, is convenient for consequently in time to install projector 2 again to the security that projector 2 used has further been promoted.

The working principle is as follows: the servo motor 8 is started to drive the driving shaft 9 to drive the driving gear 12, the intermediate gear 14, the first rotating rod 13, the transmission gear 16, the second rotating rod 15, the first bevel gear 17, the second bevel gear 18 and the two screw rods 10 to periodically rotate, the two screw rods 10 are respectively in threaded engagement with the two connecting blocks 11, so that the two screw rods 10 can drive the two connecting blocks 11 and the U-shaped baffle 7 to move up and down through periodic rotation, when the projector 2 is used, the U-shaped baffle 7 is moved to the bottom end of the anti-falling plate 5, an image or a video can be projected onto a curtain by using the projector 2, after the use is finished, the U-shaped baffle 7 is moved up and the top end of the U-shaped baffle 7 is attached to the bottom wall of the U-shaped top plate 20, and at the moment, the anti-falling plate 5, the fixing plate 6, the U-shaped baffle 7 and the U-shaped top plate 20 are jointly covered on the outer side of the projector 2, so that dust can be prevented from continuously falling onto the projector 2, the heat dissipation effect of the projector 2 is improved, so that the use effect of the projector 2 is improved and the service life of the projector 2 is prolonged; when the driving shaft 9 rotates to drive the U-shaped baffle 7 to move upwards or downwards, the first rotating rod 13 rotates to drive the fan blade 19 arranged at one end of the first rotating rod 13 to rotate, at the moment, the fan blade 19 blows air to one side of the projector 2 and blows off a small amount of dust falling on the projector 2, the heat dissipation effect of the projector 2 is further improved, and therefore the using effect of the projector 2 is further improved, and the service life of the projector 2 is prolonged; the anti-falling plate 5 is connected to the bottom end of the fixed plate 6 in a sliding mode, the anti-falling plate 5 is pushed to one end of the fixed plate 6 when the projector 2 is disassembled and assembled, so that the anti-falling plate 5 can be prevented from obstructing the installation of the projector 2, the disassembling and assembling difficulty of the projector 2 is reduced, the anti-falling plate 5 is moved to the bottom end of the projector 2 after the projector 2 is assembled, the two fixed blocks 23 are respectively contacted with the two limit blocks 24, the two magnetic blocks 25 are respectively and tightly absorbed on the two limit blocks 24, the anti-falling plate 5 can be fixed to the bottom end of the projector 2, and therefore the anti-falling plate 5 at the bottom end can fall even if the projector 2 falls carelessly, safety accidents caused by the fact that the projector 2 directly falls can be avoided, and the use safety of the projector 2 is improved; the projector 2 can directly fall on the top end of the supporting plate 35 after falling, and at the moment, the damping spring 36 at the bottom end of the supporting plate 35 can play a damping protection effect on the supporting plate 35 and the projector 2, so that the projector 2 can be prevented from directly falling on the top wall of the supporting plate 35 to be damaged, and the service life of the projector 2 is prolonged; projector 2 drops and presses down shift knob 38 and opens pilot lamp 37 on the layer board 35 back, just can in time discover that projector 2 has taken place to drop after pilot lamp 37 opens, is convenient for consequently in time to install projector 2 again to the security that projector 2 used has further been promoted.

The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.

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

1. The utility model provides a teaching projecting apparatus based on thing networking, includes fixing base (1) of fixed mounting on the wall roof and installs projecting apparatus (2) in fixing base (1) bottom, its characterized in that: fixed mounting has installation pole (4) on the roof of projecting apparatus (2), and installs the bottom at fixing base (1) in installation pole (4), the bottom of projecting apparatus (2) is equipped with prevents weighing down board (5), prevent weighing down and install fixed plate (6) on the roof of board (5) one side, and the top of fixed plate (6) is fixed on the wall roof, prevent weighing down and install the dustproof mechanism who mutually supports with projecting apparatus (2) on board (5):

the dustproof mechanism comprises a U-shaped baffle (7) movably mounted on the anti-falling plate (5) and a driving mechanism mutually matched with the U-shaped baffle (7), the U-shaped baffle (7) vertically penetrates through the anti-falling plate (5) and is arranged, the driving mechanism comprises a servo motor (8) fixedly mounted on the fixed plate (6), a driving shaft (9) is mounted at the output end of the servo motor (8), two lead screws (10) are symmetrically and rotatably mounted on the top wall of the anti-falling plate (5), two connecting blocks (11) are symmetrically and fixedly mounted on the inner side wall of one side, close to the fixed plate (6), of the U-shaped baffle (7), the two lead screws (10) respectively penetrate through the two connecting blocks (11) and are respectively meshed with the two connecting blocks (11) in a threaded manner, and a transmission mechanism is arranged between the driving shaft (9) and the two lead screws (10), install on fixed plate (6) and blow grey mechanism with projector (2) mutually supporting, and blow grey mechanism and be driven by servo motor (8), prevent weighing down board (5) sliding connection in the bottom of fixed plate (6), and prevent weighing down and be equipped with coupling mechanism between board (5) and fixed plate (6), prevent weighing down and be equipped with the protection machanism who mutually supports with projector (2) on board (5).

2. The teaching projector based on the internet of things as claimed in claim 1, wherein: the transmission mechanism comprises a driving gear (12) fixedly installed on the outer side wall of a driving shaft (9), two first rotating rods (13) are symmetrically and rotatably installed on the outer side wall of the top end of a fixing plate (6), the two first rotating rods (13) are respectively located on two sides of the driving shaft (9), intermediate gears (14) meshed with the driving gear (12) are fixedly installed on the outer side walls of the two first rotating rods (13), two second rotating rods (15) are symmetrically and rotatably installed on the outer side wall of the top end of the fixing plate (6), the two second rotating rods (15) are respectively located on two sides of the two first rotating rods (13), transmission gears (16) meshed with the intermediate gears (14) are fixedly installed on the outer side walls of the two second rotating rods (15), and first bevel gears (17) are fixedly installed at one ends, close to a screw rod (10), of the two second rotating rods (15), the top ends of the two screw rods (10) are fixedly provided with second bevel gears (18) which are meshed with the first bevel gears (17), the outer side wall of the top end of the fixing plate (6) is fixedly provided with U-shaped top plates (20) which are matched with the U-shaped baffle (7), and the top ends of the screw rods (10) and the second bevel gears (18) are located on the inner sides of the U-shaped top plates (20).

3. The teaching projector based on the internet of things as claimed in claim 2, wherein: soot blower constructs including evenly rotating a plurality of first bull sticks (13) of installing on fixed plate (6), every equal fixed mounting has intermediate gear (14), adjacent two on the lateral wall of first bull stick (13) intermediate gear (14) all intermeshing, and intermediate gear (14) that are located the top all mesh with driving gear (12) or drive gear (16), every equal fixed mounting has a plurality of flabellums (19) on the lateral wall of fixed plate (6) one end is kept away from in first bull stick (13).

4. The teaching projector based on the internet of things as claimed in claim 1, wherein: two connecting blocks (11) are connected on the inner side wall of the top end of the U-shaped baffle (7).

5. The teaching projector based on the internet of things as claimed in claim 4, wherein: coupling mechanism includes two fixed blocks (23) of fixed mounting on preventing weighing down board (5) roof, and two fixed blocks (23) are located the both ends of preventing weighing down board (5) respectively, fixed plate (6) are close to on the lateral wall of fixed block (23) one side fixed mounting have two stopper (24) of mutually supporting with fixed block (23), two stopper (24) are located the both ends of fixed plate (6) respectively, and two stopper (24) and two fixed block (23) crisscross setting each other, two equal fixed mounting has magnetic block (25) with stopper (24) inter attraction on being close to the lateral wall of stopper (24) one side in fixed block (23).

6. The teaching projector based on the internet of things as claimed in claim 1, wherein: offer the spread groove of mutually supporting with installation pole (4) on the diapire of fixing base (1), and the one end of spread groove extends to the outside of fixing base (1), symmetry fixed mounting has two spacing slides (26) on the lateral wall on installation pole (4) top, two spacing spouts (27) of mutually supporting with spacing slide (26) are seted up to the symmetry on the inside wall of spread groove, be equipped with on fixing base (1) with spacing slide (26) and installation pole (4) location structure of mutually supporting.

7. The teaching projector based on the internet of things as claimed in claim 6, wherein: the positioning structure comprises a limiting insertion rod (28) movably inserted on the outer side wall of one side of the fixing seat (1), one end of the limiting insertion rod (28) extends into the connecting groove, one of the limiting sliding plate (26) is provided with a limiting insertion hole (29) matched with the limiting insertion rod (28), the outer side wall of one side of the fixing seat (1) is provided with a movable groove (30) matched with the limiting insertion rod (28), one end of the limiting insertion rod (28) is fixedly provided with an end plate (31), the end plate (31) is tightly attached to the outer side of the movable groove (30), the end plate (31) is provided with a handle (32), the inner side wall of the movable groove (30) is movably inserted with a plurality of movable rods (33), one ends of the movable rods (33) are fixedly connected to the end plate (31), and each outer side wall of each movable rod (33) is wound with a reset spring (34), and two ends of the return spring (34) are respectively and fixedly connected with the inner side wall of the movable groove (30) and the end plate (31).

8. The teaching projector based on the internet of things as claimed in claim 1, wherein: protection machanism includes layer board (35) of mutually supporting with projecting apparatus (2), and layer board (35) are located the downside of projecting apparatus (2), install a plurality of damping spring (36) between the diapire of layer board (35) and the roof of preventing weighing down board (5), install pilot lamp (37) on the diapire of preventing weighing down board (5), install shift knob (38) that are connected with pilot lamp (37) on the roof of layer board (35).