Diffractive optical teaching aid

Abstract

The utility model discloses a diffractive optical teaching aid, and relates to the technical field of teaching aids. The diffractive optics teaching aid comprises a base, a plurality of first internal threaded holes are formed in the middle of the top surface of the base and distributed in a rectangular array, second internal threaded holes are formed in the four corners of the top surface of the base, and a driving assembly is arranged on one side of the top surface of the base. A diffractive optical module is installed at the output end of the driving assembly, and a supporting assembly is arranged in the middle of the surface of the top of the base and located on one side of the driving assembly. A laser module is arranged at the top end of the supporting assembly, a laser generator is arranged on one side of the base, and the laser module is connected with the laser generator, a teacher does not need to replace different diffractive optical lenses in the whole process, normal teaching can be guaranteed, the diffractive optical lenses are not prone to being damaged, and the teaching efficiency is improved. Meanwhile, the use convenience of the teaching aid can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to teaching aid technical field, concretely is a kind of diffractive optical teaching aid. BACKGROUND

[0002] Teaching aid is used for the various tools of education and teaching, including blackboard, whiteboard, projector, computer software, teaching software, learning card, teaching mold, experimental equipment, diffractive optical teaching aid etc., the use of these teaching aids can enhance teaching effect, help student better understand and master knowledge, the diffractive optical teaching aid of prior art is inconvenient for teacher to replace different diffractive optical lens when using, and teacher cannot flexibly adjust the speed or content of switching diffractive optical element when explaining optical diffraction principle, thereby reduce the convenience of teaching aid use, so we propose a kind of diffractive optical teaching aid to solve the above problems. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides a kind of diffractive optical teaching aid, solve the problem of inconvenience for teacher to replace different diffractive optical lens, and teacher is also easy to scratch when replacing diffractive optical lens, thereby reduce the convenience of teaching aid use.

[0004] To achieve the above object, the utility model is realized by the following technical scheme: a kind of diffractive optical teaching aid, including base, the top surface middle part of base is equipped with a plurality of first internal thread hole, and a plurality of the first internal thread hole is distributed in rectangular array, the top surface four corner positions of base are equipped with second internal thread hole, the one side of the top surface of base is provided with drive assembly, the output end of drive assembly is installed with diffractive optical module, the middle part of the top surface of base and located the one side of drive assembly is provided with lifting assembly;

[0005] The top of lifting assembly is provided with laser module, the one side of base is provided with laser generator, and the laser module is connected with the laser generator, the input end of drive assembly is connected with the laser generator by transmission line.

[0006] Preferably, the drive assembly includes a supporting plate, a vertical plate is arranged at the middle position of the top surface of the supporting plate, a servo motor is arranged at the top of the side wall of the vertical plate and located at one side of the lifting assembly.

[0007] The output end of the servo motor is installed with a rotating plate inserted into the diffractive optical module, a plurality of first internal thread grooves are arranged on the outer wall of the rotating plate, a fixing screw for installing the diffractive optical module is rotatably connected in the inner cavity of each first internal thread groove, a servo motor controller is arranged at the side wall of the vertical plate and located below the servo motor, and the servo motor controller is connected with the laser generator by transmission line.

[0008] The both side walls of the supporting plate are provided with openings, and positioning screws are inserted into the cavities of the openings, and the bottom ends of the positioning screws are rotationally connected with the cavities of the first internal thread holes.

[0009] Preferably, the lifting assembly comprises a locking telescopic rod, the telescopic end of the locking telescopic rod is provided with a clamping piece, and a second internal thread groove for mounting the clamping piece is formed in the top of the telescopic end of the locking telescopic rod.

[0010] The bottom end of the locking telescopic rod is fixedly provided with a second external thread column, and the second external thread column is rotationally connected with the cavity of the first internal thread hole.

[0011] Preferably, the clamping piece comprises a sleeve for inserting the outside of the laser module, third internal thread holes are formed in the top surfaces of both sides of the sleeve, and locking knobs are formed in the cavities of the third internal thread holes.

[0012] The bottom of the sleeve is fixedly provided with a first external thread column, and the bottom end of the first external thread column is rotationally connected with the cavity of the second internal thread groove.

[0013] Preferably, the outer diameter of the laser module is the same as the inner diameter of the sleeve, and the laser module is connected with the sleeve in an inserting mode.

[0014] Preferably, the limiting assembly further comprises four limiting assemblies, and the four limiting assemblies are rotationally installed in the cavities of the four second internal thread holes, respectively.

[0015] Preferably, the limiting assembly comprises a supporting block, and a clamping groove is formed in the center of the top surface of the supporting block.

[0016] A bearing is arranged in the cavity of the clamping groove, a screw rod is arranged in the cavity of the bearing, the screw rod is rotationally connected with the cavity of the second internal thread hole, and a suction disc is arranged on the bottom surface of the supporting block.

[0017] Beneficial effects

[0018] The utility model provides a kind of diffractive optical teaching aid.Compared with prior art, it has the following beneficial effects:

[0019] The diffraction optical teaching aid, when laser projection teaching is needed, the teacher first installs the driving assembly at the front end first internal threaded hole of the base, and fixes the driving assembly, then installs the diffraction optical module at the output end of the driving assembly, so that the driving assembly drives the diffraction optical module to rotate, then the teacher fixes the lifting assembly at the middle first internal threaded hole of the base, and the lifting assembly is located right behind the driving assembly, then installs the laser module on the lifting assembly, adjusts the telescopic height of the lifting assembly, so that the irradiation end of the laser module is right on one of the diffraction optical lenses of the diffraction optical module, and connects the laser module with the laser generator, then connects the laser generator with the driving assembly through the transmission line;

[0020] When laser projection teaching is needed, the laser generator can control the operation of the laser module to make the laser module emit laser, and can also control the operation of the driving assembly through the transmission line, so that the driving assembly drives the diffraction optical module to rotate regularly, and each rotation of the diffraction optical module makes the diffraction optical lens on the diffraction optical module face the laser emitted by the laser module, so that the laser projects different scenes on different diffraction optical lenses, and the whole process does not need the teacher to replace different diffraction optical lenses, which can ensure normal teaching and achieve different projection effects by adjusting the rotation speed of the driving assembly. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a whole structure schematic view of the utility model;

[0022] Figure 2 It is a side structure schematic view of the utility model;

[0023] Figure 3 It is a driving assembly structure schematic view of the utility model;

[0024] Figure 4 It is a lifting assembly explosion structure schematic view of the utility model;

[0025] Figure 5 It is a clamping piece explosion structure schematic view of the utility model;

[0026] Figure 6 It is a limiting assembly explosion structure schematic view of the utility model.

[0027] In the figure: 1, base; 2, first internally threaded hole; 3, second internally threaded hole; 4, drive assembly; 41, supporting plate; 42, vertical plate; 43, servo motor; 44, rotating plate; 45, first internally threaded groove; 46, fixing screw; 47, servo motor controller; 48, notch; 49, positioning screw; 5, diffraction optical module; 6, lifting assembly; 61, lock type telescopic rod; 62, second internally threaded groove; 63, clamping piece; 631, clamping sleeve; 632, third internally threaded hole; 633, locking knob; 634, first externally threaded column; 64, second externally threaded column; 7, laser module; 8, laser generator; 9, transmission line; 10, limiting assembly; 101, supporting block; 102, clamping groove; 103, bearing; 104, screw rod; 105, suction cup. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] Please refer to Figures 1-2 The present application provides a technical solution: a diffraction optical teaching aid, comprising a base 1, a plurality of first internally threaded holes 2 are formed in the middle of the top surface of the base 1, and the plurality of first internally threaded holes 2 are arranged in a rectangular array, second internally threaded holes 3 are formed at the four corner positions of the top surface of the base 1, a drive assembly 4 is arranged on one side of the top surface of the base 1, a diffraction optical module 5 is mounted on the output end of the drive assembly 4, and a lifting assembly 6 is arranged in the middle of the top surface of the base 1 and on one side of the drive assembly 4; a laser module 7 is arranged at the top end of the lifting assembly 6, a laser generator 8 is arranged on one side of the base 1, and the laser module 7 is connected to the laser generator 8, and the input end of the drive assembly 4 is connected to the laser generator 8 through a transmission line 9;

[0030] When the laser projection teaching is needed, the teacher first installs the driving assembly 4 at the front end first internal threaded hole 2 on the base 1, and fixes the driving assembly 4, then installs the diffraction optical module 5 at the output end of the driving assembly 4, so that the driving assembly 4 drives the diffraction optical module 5 to rotate, then the teacher first fixes the lifting assembly 6 at the middle first internal threaded hole 2 on the base 1, and the lifting assembly 6 is located directly behind the driving assembly 4, then installs the laser module 7 on the lifting assembly 6, and adjusts the telescopic height of the lifting assembly 6, so that the irradiation end of the laser module 7 is directly opposite one of the diffraction optical lenses of the diffraction optical module 5, and the laser module 7 is connected with the laser generator 8, then the laser generator 8 is connected with the driving assembly 4 through the transmission line 9, when the laser projection teaching is needed, the laser generator 8 can control the operation of the laser module 7 to make the laser module 7 emit laser, and can control the operation of the driving assembly 4 through the transmission line 9, so that the driving assembly 4 drives the diffraction optical module 5 to rotate regularly, and each rotation of the diffraction optical module 5 makes the diffraction optical lens on the diffraction optical module 5 directly opposite the laser emitted by the laser module 7, so that the laser is projected on different diffraction optical lenses to form different scenes, the whole process does not need the teacher to replace different diffraction optical lenses, which can ensure normal teaching, is not easy to damage the diffraction optical lenses, and can improve the convenience of teaching aid use.

[0031] Referring to Figure 2 , Figure 3 , the driving assembly 4 comprises a supporting plate 41, a vertical plate 42 is arranged at the middle position of the top surface of the supporting plate 41, a servo motor 43 is arranged at the top of the side wall of the vertical plate 42 and located at one side of the lifting assembly 6, a rotating plate 44 is arranged on the output end of the servo motor 43 and inserted on the diffraction optical module 5, a plurality of first internal threaded grooves 45 are arranged on the outer wall of the rotating plate 44, a fixing screw 46 for installing the diffraction optical module 5 is rotatably connected in each first internal threaded groove 45, a servo motor controller 47 is arranged on the side wall of the vertical plate 42 and located below the servo motor 43, and the servo motor controller 47 is connected with the laser generator 8 through the transmission line 9; the two side walls of the supporting plate 41 are provided with an opening 48, a positioning screw 49 is inserted in the inner cavity of each opening 48, and the bottom end of the positioning screw 49 is rotatably connected with the inner cavity of the first internal threaded hole 2;

[0032] Through the driving assembly 4 in the tray 41, both can be fixed in the two first inner threaded holes 2 through the gap 48 and the positioning screw 49, and the vertical plate 42 can be installed and fixed, and then through the vertical plate 42, the servo motor 43 and the servo motor controller 47 can be installed and fixed. Since the output end of the servo motor 43 is installed with a rotating plate 44 inserted on the diffractive optical module 5, and the rotating plate 44 is provided with a plurality of first inner threaded grooves 45 on the outer wall, and each first inner threaded groove 45 is rotatably connected with a fixing screw 46 for installing the diffractive optical module 5, the diffractive optical module 5 can be fixed on the rotating plate 44 through the first inner threaded groove 45 by the fixing screw 46. Then through the servo motor controller 47, the laser generator 8 can be connected through the transmission line 9, and the servo motor 43 can be controlled to operate, so that the servo motor 43 drives the diffractive optical module 5 to rotate regularly through the rotating plate 44, and then the laser module 7 can irradiate different diffractive optical lenses on the diffractive optical module 5. Even the projection picture can form the content of the animation by adjusting the rotating speed of the servo motor 43.

[0033] Referring to Figure 1 、 Figure 4 and Figure 5 , the lifting assembly 6 includes a lock type telescopic rod 61, the telescopic end of the lock type telescopic rod 61 is provided with a clamping piece 63, and the telescopic end of the lock type telescopic rod 61 is provided with a second inner threaded groove 62 for installing the clamping piece 63; the bottom end of the lock type telescopic rod 61 is fixedly provided with a second outer threaded column 64, and the second outer threaded column 64 is rotatably connected with the inner cavity of the first inner threaded hole 2; the clamping piece 63 includes a sleeve 631 for inserting the outside of the laser module 7, the top surface of the sleeve 631 is provided with a third inner threaded hole 632 on both sides, and the inner cavity of the two third inner threaded holes 632 is provided with a locking knob 633; the bottom of the sleeve 631 is fixedly provided with a first outer threaded column 634, and the bottom end of the first outer threaded column 634 is rotatably connected with the inner cavity of the second inner threaded groove 62; the outer diameter of the laser module 7 is the same as the inner diameter of the sleeve 631, and the two are connected by insertion;

[0034] By lifting the lock type telescopic rod 61 in the assembly 6, it can be installed in the inner cavity of one of the first inner threaded holes 2 through the second outer threaded column 64, and it can be flexibly telescopic, and it can also provide the opening basis for the second inner threaded groove 62, then through the sleeve 631, it can be installed in the inner cavity of the second inner threaded groove 62 through the first outer threaded column 634, and it can provide installation basis for the two locking buttons 633 through the two third inner threaded holes 632, and it can also provide installation basis for the laser module 7. Then by rotating the two locking buttons 633, the laser module 7 installed in the sleeve 631 can be fixed, thereby improving the stability of the use of the laser module 7, and then by adjusting the telescopic length of the lock type telescopic rod 61, the laser module 7 can be made to face the diffractive optical lens on the diffractive optical module 5, thereby improving the convenience of the use of the teaching aid.

[0035] Referring to Figure 1 、 Figure 6 Further comprising four limiting assemblies 10, the four limiting assemblies 10 are respectively rotationally installed in the inner cavities of the four second inner threaded holes 3, and the limiting assembly 10 comprises a support block 101, and a clamping groove 102 is formed in the center of the top surface of the support block 101; a bearing 103 is arranged in the inner cavity of the clamping groove 102, and a screw rod 104 is arranged in the inner cavity of the bearing 103, the screw rod 104 is rotationally connected with the inner cavity of the second inner threaded hole 3, and a suction cup 105 is arranged on the bottom surface of the support block 101;

[0036] By the screw rod 104 in the limiting assembly 10, it can be rotationally installed in the inner cavity of the second inner threaded hole 3, and it can be installed at the clamping groove 102 on the support block 101 through the bearing 103, and by rotating the screw rod 104, the position height of the screw rod 104 at the base 1 can be adjusted, thereby the base 1 can be adjusted, and since the suction cup 105 is arranged on the bottom surface of the support block 101, the stability of the contact between the support block 101 and the desktop can be improved, thereby preventing the teaching aid from sliding during use.

[0037] When the laser projection teaching is needed, the teacher first installs the driving assembly 4 on the front end of the first internal threaded hole 2 of the base 1, and fixes the driving assembly 4, then installs the diffraction optical module 5 on the output end of the driving assembly 4, so that the driving assembly 4 drives the diffraction optical module 5 to rotate, then the teacher first fixes the lifting assembly 6 on the middle of the first internal threaded hole 2 of the base 1, and the lifting assembly 6 is located directly behind the driving assembly 4, then installs the laser module 7 on the lifting assembly 6, and adjusts the telescopic height of the lifting assembly 6, so that the irradiation end of the laser module 7 is directly opposite one of the diffraction optical lenses of the diffraction optical module 5, and the laser module 7 is connected with the laser generator 8, then the laser generator 8 is connected with the driving assembly 4 through the transmission line 9, when the laser projection teaching is needed, the laser generator 8 can control the operation of the laser module 7 to make the laser module 7 emit laser, and can also control the operation of the driving assembly 4 through the transmission line 9, so that the driving assembly 4 drives the diffraction optical module 5 to rotate regularly, and each rotation of the diffraction optical module 5 makes the diffraction optical lens on the diffraction optical module 5 directly opposite the laser emitted by the laser module 7, so that the laser is projected on different diffraction optical lenses to form different scenes, the whole process does not need the teacher to replace different diffraction optical lenses, which can ensure normal teaching and prevent damage to the diffraction optical lenses, and also improves the convenience of teaching aids.

[0038] The driving assembly 4 can be fixed on the two first internal threaded holes 2 through the gap 48 and the positioning screw 49, and the vertical plate 42 can be installed and fixed, then the servo motor 43 and the servo motor controller 47 can be installed and fixed through the vertical plate 42, the output end of the servo motor 43 is installed on the rotating plate 44 which is inserted on the diffraction optical module 5, and the outer wall of the rotating plate 44 is provided with a plurality of first internal threaded grooves 45, and the first internal threaded groove 45 is rotatably connected with the fixing screw 46 for installing the diffraction optical module 5, so that the diffraction optical module 5 can be fixed on the rotating plate 44 through the first internal threaded groove 45 and the fixing screw 46, and the servo motor controller 47 can be connected with the laser generator 8 through the transmission line 9 and control the operation of the servo motor 43, so that the servo motor 43 drives the diffraction optical module 5 to rotate regularly through the rotating plate 44, and the laser module 7 can irradiate different diffraction optical lenses on the diffraction optical module 5.

[0039] By lifting the lock type telescopic rod 61 in the assembly 6, it can be installed in one of the first inner threaded hole 2 inner cavity through the second outer threaded column 64, and it can be flexible and telescopic, and it can also provide the opening basis for the second inner threaded groove 62, then through the sleeve 631, it can be installed in the second inner threaded groove 62 inner cavity through the first outer threaded column 634, and it can provide installation basis for two locking buttons 633 through two third inner threaded holes 632, and it can also be inserted and installed with the laser module 7, then by rotating the two locking buttons 633, the laser module 7 installed in the sleeve 631 can be fixed, thereby improving the stability of the laser module 7, then by adjusting the telescopic length of the lock type telescopic rod 61, the laser module 7 can be made to face the diffractive optical lens on the diffractive optical module 5, and the convenience of using the teaching aid is improved.

[0040] By the screw rod 104 in the limiting component 10, it can be installed in the second inner threaded hole 3 inner cavity, and it can be installed in the clamping groove 102 on the support block 101 through the bearing 103, and by rotating the screw rod 104, the position height of the screw rod 104 at the base 1 can be adjusted, thereby the adjusting base 1 can be lifted, and since the bottom surface of the support block 101 is provided with a suction cup 105, the stability of the support block 101 in contact with the desktop can be improved, preventing the teaching aid from sliding during use.

[0041] In summary, the whole process of the device does not need the teacher to replace different diffractive optical lenses, which can ensure normal teaching, and is not easy to damage the diffractive optical lenses, and can also improve the convenience of using the teaching aid.

[0042] Meanwhile, the contents not described in detail in the specification all belong to the existing technology known to those skilled in the art.

Claims

1. A diffractive optical teaching aid, comprising a base (1), a plurality of first internally threaded holes (2) are arranged in a rectangular array in the middle of the top surface of the base (1), and a second internally threaded hole (3) is arranged at each corner of the top surface of the base (1), characterized in that: The top surface of the base (1) is provided with a drive assembly (4), the output end of the drive assembly (4) is provided with a diffraction optical module (5), the middle of the top surface of the base (1) and on one side of the drive assembly (4) is provided with a lifting assembly (6); The top end of the lifting assembly (6) is provided with a laser module (7), one side of the base (1) is provided with a laser generator (8), and the laser module (7) is connected with the laser generator (8), and the input end of the drive assembly (4) is connected with the laser generator (8) through a transmission line (9).

2. A diffractive optical teaching aid according to claim 1, wherein: The drive assembly (4) comprises a supporting plate (41), the top surface of the supporting plate (41) is provided with a vertical plate (42) at the middle position, and the top of the side wall of the vertical plate (42) and on one side of the lifting assembly (6) is provided with a servo motor (43). The output end of the servo motor (43) is provided with a rotating plate (44) inserted in the diffraction optical module (5), a plurality of first internal thread grooves (45) are arranged on the outer wall of the rotating plate (44), a fixing screw (46) for mounting the diffraction optical module (5) is rotatably connected in each first internal thread groove (45), a servo motor controller (47) is arranged on the side wall of the vertical plate (42) and below the servo motor (43), and the servo motor controller (47) is connected with the laser generator (8) through a transmission line (9); The supporting plate (41) is provided with an opening (48) on the side wall, and a positioning screw (49) is inserted in the opening (48).

3. A diffractive optical teaching aid according to claim 1, wherein: The lifting assembly (6) comprises a lock type telescopic rod (61), the telescopic end of the lock type telescopic rod (61) is provided with a clamping piece (63), and the top of the telescopic end of the lock type telescopic rod (61) is provided with a second internal thread groove (62) for mounting the clamping piece (63); The bottom end of the lock type telescopic rod (61) is fixedly provided with a second external thread column (64), and the second external thread column (64) is rotatably connected with the first internal thread hole (2).

4. A diffractive optical teaching aid according to claim 3, wherein: The clamping piece (63) comprises a sleeve (631) for inserting the outer side of the laser module (7), the top surface of the sleeve (631) is provided with a third internal thread hole (632) on both sides, and a locking knob (633) is arranged in the third internal thread hole (632). The bottom of the sleeve (631) is fixedly provided with a first external thread column (634), and the bottom end of the first external thread column (634) is rotatably connected with the second internal thread groove (62).

5. A diffractive optical teaching aid according to claim 4, wherein: The outer diameter of the laser module (7) is the same as the inner diameter of the sleeve (631), and the two are connected by insertion.

6. A diffractive optical teaching aid according to claim 1, wherein: It also comprises a limiting assembly (10), and the limiting assembly (10) is provided with four, and the limiting assembly (10) is rotatably installed in the second internal thread hole (3).

7. A diffractive optical teaching aid according to claim 6, wherein: The limiting assembly (10) comprises a support block (101), a clamping groove (102) is arranged at the top surface center of the support block (101); A bearing (103) is arranged in the inner cavity of the clamping groove (102), and a screw rod (104) is arranged in the inner cavity of the bearing (103), the screw rod (104) is rotationally connected with the inner cavity of the second internal thread hole (3), and a suction disc (105) is arranged on the bottom surface of the support block (101).

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