CN214475606U

CN214475606U - Portable projection arrangement for primary school's chinese teaching

Info

Publication number: CN214475606U
Application number: CN202120610791.5U
Authority: CN
Inventors: 贾茸茸
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-10-22
Anticipated expiration: 2031-03-25

Abstract

The utility model relates to the technical field of teaching equipment, in particular to a portable projection device for primary school Chinese teaching, which is convenient to move, can improve the flexibility and reduce the use limitation; including quick-witted case, including a motor, an end cap, a controller, and a cover plate, driven lead screw, two sets of screwed pipe, the elevating platform, the curtain frame, the mount, the projecting apparatus, adjust knob and projection curtain, the machine incasement is equipped with the cavity, motor fixed mounting is in machine bottom, the output of motor is equipped with initiative lead screw, driven lead screw rotates and installs in machine bottom, two sets of screwed pipe spiral shell dress respectively is on initiative lead screw and driven lead screw, connect through belt drive assembly between initiative lead screw and the driven lead screw, elevating platform bottom and two sets of screwed pipe top fixed connection, machine top is equipped with two sets of openings, the curtain frame pass the opening of rear side and with elevating platform top fixed connection, the mount passes the opening of front side and with elevating platform top fixed connection, the projecting apparatus rotates and installs in the mount, adjust knob and projecting apparatus right-hand member fixed connection.

Description

Portable projection arrangement for primary school's chinese teaching

Technical Field

The utility model relates to a technical field of teaching equipment especially relates to a projection arrangement is used in teaching of portable primary school's chinese.

Background

As is known, a projector is a device that can project images or videos onto a curtain, and can be connected to a computer, a VCD, a DVD, a BD, a game machine, a DV, etc. via different interfaces to play corresponding video signals. At present, many primary schools in China combine multimedia teaching in the teaching process, and through the mode of multimedia teaching, the classroom atmosphere is more active, and teachers can show teaching contents to students conveniently.

Present projection equipment for teaching mainly includes projecting apparatus and projection curtain, and the one side at the blackboard is installed mostly to the projection curtain, and the projecting apparatus hoist and mount are on rather than the roof that corresponds, and current mounting means is fixed, and inconvenient actual conditions according to the classroom removes, uses the limitation higher.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a be convenient for removal of whole device improves the flexibility, reduces to use the portable projection arrangement for primary school's chinese teaching of limitation.

The utility model discloses a portable projection arrangement for primary school's chinese teaching, including quick-witted case, including a motor, a driven screw, two sets of screwed pipe, the elevating platform, the curtain cloth holder, the mount, the projecting apparatus, adjust knob and projection curtain, be equipped with the cavity in the quick-witted case, motor fixed mounting is in quick-witted case bottom, the output of motor is equipped with initiative lead screw, driven lead screw rotates to be installed in quick-witted case bottom, two sets of screwed pipe are the spiral shell dress respectively on initiative lead screw and driven lead screw, connect through belt drive assembly between initiative lead screw and the driven lead screw, elevating platform bottom and two sets of screwed pipe top fixed connection, machine case top is equipped with two sets of openings, the curtain cloth holder passes the opening of rear side and is fixed connection with the elevating platform top, the mount passes the opening of front side and is fixed connection with the elevating platform top, the projecting apparatus rotates to be installed in the mount, adjust knob and projecting apparatus right-hand member fixed connection, the curtain frame internal rotation is equipped with the winding reel, is equipped with the multiunit torsional spring in the winding reel, and the projection curtain passes through the winding reel to be installed on the curtain frame, and machine case top is equipped with fixing device, and the machine case front end is equipped with quick-witted case door subassembly, and machine bottom end is equipped with four groups of truckles.

The utility model discloses a projection arrangement is used in portable primary school's chinese teaching, fixing device includes two sets of montants and two sets of branch, the left and right sides on machine case top all is equipped with the standing groove, two sets of montant bottoms are located two sets of standing grooves respectively, two sets of montant front ends all are equipped with the spout, the top and the bottom of two sets of branch all are equipped with articulated seat, a set of articulated seat is located the spout of montant, another group is articulated the standing groove that the seat is located machine case top, two sets of montant front ends are equipped with two sets of cassettes respectively.

The utility model discloses a projection arrangement is used in teaching of portable primary school's chinese, machine chamber door subassembly include two sets of access doors, first door-inhale and two sets of second door-inhales, and machine case front end is equipped with the access hole, and two sets of access doors rotate to be installed on the access hole, and first door-inhale bottom and machine bottom fixed connection, two sets of second door-inhales respectively with two sets of access door rear end fixed connection, and two sets of second door-inhales and first door-inhales can adsorb mutually.

The utility model discloses a projection arrangement is used in portable primary school's chinese teaching still includes two sets of observation windows, and two sets of observation windows are fixed mounting respectively on two sets of access doors.

The utility model discloses a projection arrangement is used in primary school's chinese teaching still includes the handspike, handspike and quick-witted case left end fixed connection.

The utility model discloses a projection arrangement is used in primary school's chinese teaching still includes anti-skidding handle cover, and the fixed cover of anti-skidding handle cover is established on the handspike.

The utility model discloses a projection arrangement is used in teaching of portable primary school's chinese still includes the protective cover, and protective cover rear end and quick-witted case rear end rotate to be connected, and the protective cover front end is equipped with the handle, and mount and curtain frame all can be in the protective cover.

The utility model discloses a projection arrangement is used in portable primary school's chinese teaching still includes the multiunit strengthening rib, and multiunit strengthening rib fixed mounting is on elevating platform bottom and two sets of screwed pipe respectively.

Compared with the prior art, the beneficial effects of the utility model are that: firstly, a teaching person moves the whole device to a teaching environment, determines the placing position, then starts a motor to drive a driving lead screw to rotate and a driven lead screw to rotate, simultaneously drives the screwed pipe and the lifting platform to move up and down and drives the curtain cloth rack and the fixing rack to move up and down, and the teaching personnel can adjust the height of the curtain cloth rack and the fixing rack according to the situation of the site, the heights of the curtain frame and the fixing frame are adjusted, then the fixing device at the top end of the case is opened, then the two ends of the projection curtain are pulled to drive the two ends of the projection curtain to respectively move towards the fixing device and are fixed by the fixing device, so that the projection curtain is stretched, then starting the projector, projecting the projection content on the projection screen, rotating the adjusting knob to drive the projector to rotate, adjusting the projection angle of the projector, through the arrangement, the whole device is convenient to move, the flexibility is improved, and the use limitation is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of the side A-A of the present invention;

FIG. 4 is a schematic view of the connection of the protecting cover and the handle;

in the drawings, the reference numbers: 1. a chassis; 2. a motor; 3. an active lead screw; 4. a driven lead screw; 5. a threaded pipe; 6. a lifting platform; 7. a screen frame; 8. a fixed mount; 9. a projector; 10. adjusting a knob; 11. a projection screen; 12. a vertical rod; 13. a hinged seat; 14. a strut; 15. a card holder; 16. an access door; 17. a first door stopper; 18. a second door stopper; 19. an observation window; 20. a caster wheel; 21. a handspike; 22. an anti-slip handle sleeve; 23. a protective cover; 24. a handle; 25. and (5) reinforcing ribs.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in FIGS. 1 to 4, the portable projection device for primary school Chinese teaching of the present invention comprises a case 1, a motor 2, a driven screw 4, two sets of threaded pipes 5, a lifting platform 6, a curtain frame 7, a fixing frame 8, a projector 9, an adjusting knob 10 and a projection curtain 11, wherein a cavity is arranged in the case 1, the motor 2 is fixedly installed at the bottom end of the case 1, the output end of the motor 2 is provided with a driving screw 3, the driven screw 4 is rotatably installed at the bottom end of the case 1, the two sets of threaded pipes 5 are respectively screwed on the driving screw 3 and the driven screw 4, the driving screw 3 and the driven screw 4 are connected through a belt transmission component, the bottom end of the lifting platform 6 and the top ends of the two sets of threaded pipes 5 are fixedly connected, the top end of the case 1 is provided with two sets of openings, the curtain frame 7 passes through the opening at the rear side and is fixedly connected with the top end of the lifting platform 6, the fixing frame 8 passes through the opening at the front side and is fixedly connected with the top end of the lifting platform 6, the projector 9 is rotatably installed in the fixed frame 8, the adjusting knob 10 is fixedly connected with the right end of the projector 9, a winding drum is rotatably arranged in the curtain frame 7, a plurality of groups of torsion springs are arranged in the winding drum, the projection curtain 11 is installed on the curtain frame 7 through the winding drum, the top end of the case 1 is provided with a fixing device, the front end of the case 1 is provided with a case door assembly, and the bottom end of the case 1 is provided with four groups of trundles 20; firstly, a teaching person moves the whole device to a teaching environment to determine a placement position, then a motor 2 is started, a driving screw rod 3 is driven to rotate by transmission to drive a driven screw rod 4 to rotate, a threaded pipe 5 and a lifting platform 6 are driven to move up and down, a curtain frame 7 and a fixing frame 8 are driven to move up and down, the height of the curtain frame 7 and the height of the fixing frame 8 are adjusted by the teaching person according to the situation of the site, then the fixing device at the top end of a case 1 is opened, then two ends of a projection curtain 11 are pulled to drive two ends of the projection curtain 11 to move towards the fixing device respectively and are fixed by the fixing device to extend the projection curtain 11, then a projector 9 is started, projection content is projected on the projection curtain 11, then an adjusting knob 10 is rotated to drive the projector 9 to rotate, the projection angle of the projector 9 is adjusted, and the movement of the whole device is facilitated by the arrangement, the flexibility is improved, and the use limitation is reduced.

The utility model discloses a portable projection arrangement for primary school's chinese teaching, fixing device includes two sets of montants 12 and two sets of branch 14, the left and right sides of machine case 1 top all is equipped with the standing groove, two sets of montant 12 bottoms are located two sets of standing grooves respectively, two sets of montant 12 front ends all are equipped with the spout, the top and the bottom of two sets of branch 14 all are equipped with articulated seat 13, one set of articulated seat 13 is located the spout of montant 12, another set of articulated seat 13 is located the standing groove of machine case 1 top, two sets of montant 12 front ends are equipped with two sets of cassettes 15 respectively; when using projection arrangement, open two sets of montants 12, it slides to drive four articulated seats of group 13, make two sets of branch 14 support two sets of montants 12 respectively, later stimulate projection curtain 11, clamp the both ends of projection curtain 11 respectively on two sets of cassettes 15, it can to fix projection curtain 11, when not using projection arrangement, take off the both ends of projection curtain 11, projection curtain 11 slowly kick-backs to in curtain frame 7, then press down two sets of montants 12, it slides to drive four articulated seats of group 13, withdraw branch 14, it can in the spout on quick-witted case 1 top to accomodate two sets of montants 12, through the aforesaid setting, can save space, improve and accomodate the effect, and play the effect of protection to fixing device.

The utility model discloses a portable projection arrangement for primary school's chinese teaching, the quick-witted chamber door subassembly includes two sets of access doors 16, first door-inhale 17 and two sets of second door-inhale 18, machine case 1 front end is equipped with the access hole, two sets of access doors 16 rotate and install on the access hole, first door-inhale 17 bottom and machine case 1 bottom fixed connection, two sets of second door-inhale 18 respectively with two sets of access door 16 rear end fixed connection, two sets of second door-inhale 18 and first door-inhale 17 can adsorb each other; through the arrangement, the maintenance and the overhaul of the machine case 1 are facilitated, and meanwhile, the access door 16 is prevented from being opened automatically in the moving process of the whole device, so that the safety is improved.

The utility model discloses a portable projection arrangement for primary school's chinese teaching, still include two sets of observation windows 19, two sets of observation windows 19 are fixed mounting respectively on two sets of access doors 16; through setting up observation window 19, the condition in the quick-witted case 1 is looked over to the teaching personnel of being convenient for, improves the convenience.

The portable projection device for primary school Chinese teaching of the utility model also comprises a hand push rod 21, the hand push rod 21 is fixedly connected with the left end of the case 1; through setting up handspike 21, the teaching personnel of being convenient for promote the bulk device and remove, improve the convenience.

The portable projection device for primary school Chinese teaching of the utility model also comprises an anti-skid handle sleeve 22, the anti-skid handle sleeve 22 is fixedly sleeved on the hand push rod 21; by providing the anti-slip grip 22, friction of the hand push rod 21 can be increased, hand slip can be prevented, and stability can be improved.

The utility model discloses a portable projection arrangement for primary school's chinese teaching still includes protective cover 23, and protective cover 23 rear end and quick-witted case 1 rear end are rotated and are connected, and protective cover 23 front end is equipped with handle 24, and mount 8 and curtain frame 7 can all be in protective cover 23; when the projection is not used, the motor 2 is started, the driving screw rod 3 is driven to rotate, the threaded pipe 5 and the lifting platform 6 are driven to move downwards, the fixing frame 8 and the curtain frame 7 are made to return to the case 1, and then the protecting cover 23 is covered, so that the protection effect can be achieved.

The utility model discloses a portable projection arrangement for primary school's chinese teaching still includes multiunit strengthening rib 25, multiunit strengthening rib 25 respectively fixed mounting on 6 bottoms of elevating platform and two sets of screwed pipe 5; by providing the reinforcing ribs 25, the connection between the threaded pipe 5 and the lifting table 6 can be enhanced, and the stability of the lifting table 6 can be improved.

The utility model relates to a portable projection arrangement for primary school's chinese teaching, during operation, firstly the teaching personnel moves the whole device into the teaching environment, the locating position is determined, the protective cover 23 is opened, then the motor 2 is started, the transmission drives the driving screw 3 to rotate, the driven screw 4 is driven to rotate, the screwed pipe 5 and the lifting platform 6 are driven to move upwards, the curtain frame 7 and the fixing frame 8 are extended out of the case 1, the teaching personnel adjusts the height of the curtain frame 7 and the fixing frame 8 according to the situation of the site, then two groups of vertical rods 12 are opened, four groups of hinged seats 13 are driven to slide, two groups of supporting rods 14 respectively support two groups of vertical rods 12, then the projection curtain 11 is pulled, the two ends of the projection curtain 11 are respectively clamped on two groups of clamping seats 15, the projection curtain 11 is fixed, the projection curtain 11 can be extended, then the projector 9 is started, the projection content is projected on the projection curtain 11, rotate adjust knob 10 again, it rotates to drive projecting apparatus 9, adjust projecting apparatus 9's projection angle can, when not using projection arrangement, take off the both ends of projection curtain 11, projection curtain 11 slowly kick-backs to in curtain frame 7, then press down two sets of montants 12, it slides to drive four articulated seats of group 13, withdraw branch 14, accomodate back in the spout on quick-witted case 1 top with two sets of montants 12, again can with protective cover 23 lid, when needs maintenance, open access door 16 can, the condition in quick-witted case 1 is looked over to teaching personnel's accessible observation window 19.

The portable projection device for primary school Chinese teaching of the utility model has the advantages that the installation mode, the connection mode or the setting mode are common mechanical modes, and the projection device can be implemented as long as the beneficial effects can be achieved; the utility model discloses a portable is projection arrangement for primary school's chinese teaching's motor 2 for purchase on the market, this industry technical staff only need according to its subsidiary service instruction install and operate can.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A portable projection device for primary school Chinese teaching is characterized by comprising a case (1), a motor (2), a driven screw (4), two groups of threaded pipes (5), a lifting platform (6), a curtain frame (7), a fixing frame (8), a projector (9), an adjusting knob (10) and a projection curtain (11), wherein a cavity is arranged in the case (1), the motor (2) is fixedly installed at the bottom end of the case (1), the output end of the motor (2) is provided with a driving screw (3), the driven screw (4) is rotatably installed at the bottom end of the case (1), the two groups of threaded pipes (5) are respectively screwed on the driving screw (3) and the driven screw (4), the driving screw (3) is connected with the driven screw (4) through a belt transmission component, the bottom end of the lifting platform (6) is fixedly connected with the top ends of the two groups of threaded pipes (5), and two groups of openings are arranged at the top end of the case (1), curtain frame (7) pass the opening of rear side and with elevating platform (6) top fixed connection, mount (8) pass the opening of front side and with elevating platform (6) top fixed connection, install in mount (8) rotation projecting apparatus (9), adjust knob (10) and projecting apparatus (9) right-hand member fixed connection, curtain frame (7) internal rotation is equipped with the winding drum, be equipped with the multiunit torsional spring in the winding drum, projection curtain (11) are installed on curtain frame (7) through the winding drum, quick-witted case (1) top is equipped with fixing device, quick-witted case (1) front end is equipped with quick-witted case door subassembly, quick-witted case (1) bottom is equipped with four group truckles (20).

2. The portable projection device for primary school Chinese teaching as claimed in claim 1, wherein the fixing device comprises two sets of vertical rods (12) and two sets of supporting rods (14), the top end of the case (1) is provided with a placing groove on the left and right sides, the bottom ends of the two sets of vertical rods (12) are respectively located in the two sets of placing grooves, the front ends of the two sets of vertical rods (12) are respectively provided with a sliding groove, the top ends and the bottom ends of the two sets of supporting rods (14) are respectively provided with a hinged seat (13), one set of hinged seat (13) is located in the sliding groove of the vertical rod (12), the other set of hinged seat (13) is located in the placing groove on the top end of the case (1), and the front ends of the two sets of vertical rods (12) are respectively provided with two sets of clamping seats (15).

3. The portable projection device for primary school Chinese teaching as claimed in claim 2, wherein the cabinet door assembly comprises two sets of access doors (16), a first door stopper (17) and two sets of second door stoppers (18), the front end of the cabinet (1) is provided with an access opening, the two sets of access doors (16) are rotatably mounted on the access opening, the bottom end of the first door stopper (17) is fixedly connected with the bottom end of the cabinet (1), the two sets of second door stoppers (18) are fixedly connected with the rear ends of the two sets of access doors (16), and the two sets of second door stoppers (18) and the first door stopper (17) can be mutually adsorbed.

4. A portable projection device for primary school chinese teaching as claimed in claim 3, further comprising two sets of observation windows (19), wherein two sets of observation windows (19) are fixedly installed on two sets of access doors (16), respectively.

5. The portable projection device for primary school Chinese teaching as claimed in claim 4, further comprising a hand push rod (21), wherein the hand push rod (21) is fixedly connected with the left end of the case (1).

6. The portable projection device for primary school Chinese teaching as claimed in claim 5, further comprising an anti-slip handle sleeve (22), wherein the anti-slip handle sleeve (22) is fixedly sleeved on the hand push rod (21).

7. The portable projection device for primary school Chinese teaching as claimed in claim 6, further comprising a protective cover (23), the rear end of the protective cover (23) is rotatably connected to the rear end of the case (1), the front end of the protective cover (23) is provided with a handle (24), and the fixing frame (8) and the canvas frame (7) can be disposed in the protective cover (23).

8. The portable projection device for primary school Chinese teaching as claimed in claim 7, further comprising a plurality of sets of reinforcing ribs (25), wherein the plurality of sets of reinforcing ribs (25) are respectively and fixedly mounted on the bottom end of the lifting platform (6) and the two sets of threaded pipes (5).