CN210488828U

CN210488828U - English phonetic symbol teaching device that flexibility is strong

Info

Publication number: CN210488828U
Application number: CN201921203648.3U
Authority: CN
Inventors: 邓瑜
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-05-08
Anticipated expiration: 2029-07-29

Abstract

The utility model provides a english phonetic symbol teaching device that flexibility is strong, includes the box, the front and back both sides opening of box, box inner wall top surface fixed mounting power, the box inner fixed mounting spotlight, spotlight and power supply circuit are connected, box back demountable installation light screen, and box inner wall bottom surface center passes through the bearing and connects first pivot bottom, first pivot top fixed mounting first gear, first pivot and first gear central line collineation. The utility model has simple structure and low cost, can not increase the economic burden of poverty areas, can display a single phonetic symbol character, can replace the phonetic symbol character to be displayed, can rotate the rotating handle in a reversible way to return to the previous phonetic symbol character if a knowledge point is omitted, can split the box body part from the projection screen device, is convenient to carry, is not limited by the field, and can be used during outdoor activities; other patterns can be drawn on the phonetic symbol card, and after the spotlight is opened, the phonetic symbol card can be used as a projection ornament, so that the practicability is strong.

Description

English phonetic symbol teaching device that flexibility is strong

Technical Field

The utility model belongs to the technical field of the teaching tool, specifically speaking is an english phonetic symbol teaching device that flexibility is strong.

Background

The english phonetic symbol is the important factor of carrying out english letter study and discernment, but lacks in the english teaching equipment of current and carry out display device directly perceived high-efficiently to the english phonetic symbol, is unfavorable for further improving the efficiency and the quality of english phonetic symbol teaching. But present english phonetic symbol teaching is with show board, and english phonetic symbol teaching content's show space and area are limited, and english phonetic symbol teaching content is difficult to singly enlarge and demonstrates, and the teacher need wipe the teaching content of upper part, just has the space to write other contents, wastes time and energy, and computer and the projecting apparatus that now use are limited by the place, can't demonstrate anytime and anywhere.

SUMMERY OF THE UTILITY MODEL

The utility model provides a english phonetic symbol teaching device that flexibility is strong for solve the defect among the prior art.

The utility model discloses a following technical scheme realizes:

an English phonetic symbol teaching device with strong flexibility comprises a box body, wherein the front side and the rear side of the box body are provided with openings, the top surface of the inner wall of the box body is fixedly provided with a power supply, the box body is internally and fixedly provided with a spotlight, the spotlight is connected with a power supply circuit, the back surface of the box body is detachably provided with a light screen, the center of the bottom surface of the inner wall of the box body is connected with the bottom end of a first rotating shaft through a bearing, the top end of the first rotating shaft is fixedly provided with a first gear, the first rotating shaft is collinear with the central line of the first gear, the top surface of the first gear is fixedly connected with the lower ends of a plurality of fixed rods, the fixed rods are arranged around the central line of the first gear at equal intervals, the top of each two adjacent first grooves are provided with openings opposite to each other, the top surfaces of the first grooves, a second rotating shaft is arranged in the second through hole through a bearing, a second gear is fixedly arranged at the inner end of the second rotating shaft and meshed with the first gear, and a projection screen device is detachably arranged in front of the box body.

As above english phonetic symbol teaching device that flexibility is strong, light screen four corners set up first through-hole, the screw is seted up respectively in box back four corners, the screw respectively with the first through-hole central line collineation that corresponds, a bolt passes respectively in the first through-hole, the bolt respectively with the screw thread fit that corresponds.

As above english phonetic symbol teaching device that flexibility is strong, box bottom surface four corners fixed mounting telescopic support leg.

As the English phonetic symbol teaching device with strong flexibility, the projection screen device comprises the projection frame, the back of the projection frame is detachably connected with the front of the box body, the one-way perspective glass is fixedly mounted on the inner wall of the projection frame, the reflection surface of the one-way perspective glass faces forward, the translucent white cloth is fixedly mounted on the inner wall of the projection frame, and the translucent white cloth is located in front of the one-way perspective glass.

The English phonetic symbol teaching device with strong flexibility is characterized in that the upper side and the lower side of the front surface of the box body are respectively provided with a second groove, the second groove is internally provided with a cutting, the outer end of the cutting is of a wedge-shaped structure, the wedge-shaped surface of the cutting faces the inside of the box body, the top surface of the inner wall of the upper second groove is hinged with the middle part of the corresponding cutting, the bottom surface of the inner wall of the lower second groove is hinged with the middle part of the corresponding cutting, the top surface and the bottom surface of the box body are respectively provided with a third through hole, the third through holes are respectively communicated with the inside of the corresponding second grooves, a pressure rod in contact fit with the third through holes is respectively penetrated through the third through holes, the inner ends of the pressure rods are respectively contacted with the inner ends of the corresponding cutting, the periphery of the pressure rods is respectively and fixedly provided with a positioning ring, the diameter of the positioning ring is larger than that of the third, the other end of the spring is fixedly connected with the inner ends of the corresponding inserting strips respectively, the same inserting strips are fixedly installed on the upper side and the lower side of the back of the projection screen device respectively, the wedge-shaped structures of the inserting strips on the projection screen device face the box body, the wedge-shaped surfaces of the inserting strips face the outside of the projection screen device, the inserting strips on the projection screen device are located in the corresponding second grooves respectively, and the inserting strips on the projection screen device are in lap joint with the inserting strips on the box body.

As the English phonetic symbol teaching device with strong flexibility, the outer end of the second rotating shaft is fixedly provided with the rotating handle, and the rotating handle is provided with the anti-skid lines.

According to the English phonetic symbol teaching device with high flexibility, the switch button and the brightness adjusting rotary button are fixedly installed on the top surface of the box body, and the switch button and the brightness adjusting rotary button are respectively in circuit connection with the spotlight.

As the English phonetic symbol teaching device with strong flexibility, the transparent dustproof film is fixedly arranged on the inner wall of the projection frame and is positioned in front of the semitransparent white cloth.

The English phonetic symbol teaching device with strong flexibility is characterized in that the power supply is a storage battery.

According to the English phonetic symbol teaching device with high flexibility, the pressing plate is fixedly installed at the outer end of the pressing rod.

The utility model has the advantages that: the utility model is suitable for a school in poverty area, the teacher inserts required phonetic symbol card between two adjacent first grooves in proper order respectively, after the phonetic symbol card is installed, the teacher connects the projection screen device with the box body, then opens the spotlight, the light emitted by the spotlight passes through the phonetic symbol card and is projected on the projection screen device, the lightproof character can form a shadow on the projection screen device, the character pattern after amplification can be clearly imaged on the projection screen device, the student can watch conveniently, and the interesting is strong, the active learning interest of the student can be aroused, the teacher rotates the rotating handle by hand, the rotating handle drives the second rotating shaft to rotate, the second rotating shaft drives the second gear to rotate, the second gear drives the first gear to rotate, the first gear drives the first rotating shaft to rotate, the first gear drives the fixed rod to rotate around the first gear central line respectively, the fixed rods respectively drive the corresponding phonetic symbol cards to rotate to change the projected phonetic symbol cards, the utility model has simple structure and lower cost, does not increase the economic burden of poor areas, can display single phonetic symbol characters, can replace the phonetic symbol characters required to be displayed, can reversely rotate the rotating handle to return to the previous phonetic symbol character if a knowledge point is omitted, the box body part can be detached from the projection screen device, is convenient to carry and not limited by a field, and can be used during outdoor activities; other patterns can be drawn on the phonetic symbol card, and after the spotlight is opened, the phonetic symbol card can be used as a projection ornament, so that the practicability is strong.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention; FIG. 2 is a view in the direction A of FIG. 1; FIG. 3 is an enlarged view of section I of FIG. 2; fig. 4 is a partial enlarged view of ii of fig. 2.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

An English phonetic symbol teaching device with strong flexibility is disclosed, as shown in the figure, comprising a box body 1, the front and back surfaces of the box body 1 are opened, a power supply 2 is fixedly arranged on the top surface of the inner wall of the box body 1, a spotlight 4 is fixedly arranged in the box body 1, the bottom surface of the power supply 2 is fixedly connected with the upper end of a connecting rod 3, the lower end of the connecting rod 3 is fixedly connected with the spotlight 4, a circuit between the spotlight 4 and the power supply 2 can be wound on the connecting rod 3 to prevent the circuit from scattering to influence the projection, the spotlight 4 is electrically connected with the power supply 2, a shading plate 5 is detachably arranged on the back surface of the box body 1, the center of the bottom surface of the inner wall of the box body 1 is connected with the bottom end of a first rotating shaft 9 through a bearing, a first gear 10 is fixedly arranged on the top end of the first rotating shaft 9, two first recesses 12 are seted up at the periphery top of every dead lever 11, the opening of every two adjacent first recesses 12 is relative, the equal opening in first recess 12 top surface, joint cooperation has a phonetic symbol card 13 between every two relative first recesses 12 of opening, phonetic symbol card 13 is transparent card, the phonetic symbol character on the phonetic symbol card 13 is light-tight, phonetic symbol card 13 is located respectively around spotlight 4, second through-hole 14 is seted up to 1 one side of box, through bearing installation second pivot 15 in the second through-hole 14, the inner fixed mounting second gear 16 of second pivot 15, second gear 16 meshes with first gear 10, the preceding demountable installation projection screen device of box 1. The utility model is suitable for the school in the poverty area, the teacher inserts the required phonetic symbol card 13 between two adjacent first grooves 12 in proper order respectively, after the phonetic symbol card 13 is installed, the teacher connects the projection screen device with the box 1, then opens the spotlight 14, the light emitted by the spotlight 4 passes through the phonetic symbol card 13 and is projected on the projection screen device, the lightproof character will form the shadow on the projection screen device, the enlarged character pattern can be clearly imaged on the projection screen device, the student can watch conveniently, and the interesting is strong, the active learning interest of the student can be aroused, the teacher rotates the rotating handle 29 by hand, the rotating handle 29 drives the second rotating shaft 15 to rotate, the second rotating shaft 15 drives the second gear 16 to rotate, the second gear 16 drives the first gear 10 to rotate, the first gear 10 drives the first rotating shaft 9 to rotate, the first gear 10 drives the fixed rod 11 to rotate around the first gear 10 central line respectively, the fixed rods 11 respectively drive the corresponding phonetic symbol cards 13 to rotate to change the projected phonetic symbol cards 13, the utility model has simple structure and low cost, can not increase the economic burden of poor areas, can display single phonetic symbol characters, can replace the phonetic symbol characters required to be displayed, if the knowledge points are omitted, the rotary handle 29 can be reversely rotated to return the previous phonetic symbol character, the box body 1 can be detached from the projection screen device, is convenient to carry and not limited by the field, and can be used during outdoor activities; other patterns can be drawn on the phonetic symbol card 13, and the phonetic symbol card can be used as a projection ornament after the spotlight 14 is opened, so that the practicability is strong.

Specifically, as shown in fig. 2, four corners of the light shielding plate 5 according to this embodiment are provided with first through holes 6, four corners of the back surface of the box body 1 are respectively provided with screw holes 7, the screw holes 7 are respectively collinear with center lines of the corresponding first through holes 6, a bolt 8 is respectively passed through each first through hole 6, and the bolt 8 is respectively in threaded fit with the corresponding screw hole 7. This structure makes the 5 dismouting of light screen all more convenient, is convenient for place the phonetic symbol card, and the equal preferred butterfly bolt that is of bolt 8 need not the instrument and can unscrew or screw up, and is more nimble during actual operation.

Specifically, as shown in fig. 1 or 2, the four corners of the bottom surface of the box 1 according to the present embodiment are fixedly provided with telescopic support legs 28. The height of box 1 can be adjusted to this structure, can be more nimble satisfy different demands, make the viewer have a more comfortable viewing angle.

Further, as shown in fig. 2 or 4, the projection screen apparatus according to this embodiment includes a projection frame 17, the front and rear surfaces of the projection frame 17 are both open, the rear surface of the projection frame 17 is detachably connected to the front surface of the cabinet 1, a half mirror 20 is fixedly installed on the inner wall of the projection frame 17, the reflective surface of the half mirror 20 faces forward, a translucent white cloth 21 is fixedly installed on the inner wall of the projection frame 17, and the translucent white cloth 21 is located in front of the half mirror 20. The projection frame 17 is used for connecting the box body 1, the one-way perspective glass 20 prevents external light from entering the box body 1 to influence the projection effect, and the semitransparent white cloth 21 plays a role of a projection screen.

Furthermore, as shown in fig. 2 or 4, in the embodiment, the upper and lower sides of the front surface of the box body 1 are respectively provided with a second groove 22, the second groove 22 is internally provided with a cutting 23, the outer end of the cutting 23 is in a wedge-shaped structure, the wedge-shaped surface of the cutting 23 faces the inside of the box body 1, the top surface of the inner wall of the upper second groove 22 is hinged with the middle part of the corresponding cutting 23, the bottom surface of the inner wall of the lower second groove 22 is hinged with the middle part of the corresponding cutting 23, the top surface and the bottom surface of the box body 1 are respectively provided with a third through hole 24, the third through holes 24 are respectively communicated with the inside of the corresponding second grooves 22, a press rod 25 in contact fit with the third through holes 24 is respectively passed through the third through holes 24, the inner ends of the press rods 25 are respectively in contact with the inner ends of the corresponding cutting 23, the positioning rings 26 are respectively fixedly installed on, the bottom surface of the inner wall of the upper second groove 22 and the top surface of the inner wall of the lower second groove 22 are fixedly connected with one end of a spring 27 respectively, the other end of the spring 27 is fixedly connected with the inner end of a corresponding inserting strip 23 respectively, the upper side and the lower side of the back of the projection screen device are fixedly provided with the same inserting strips 23 respectively, the wedge-shaped structures of the inserting strips 23 on the projection screen device face towards the outside of the projection screen device towards the box body 1 and the wedge-shaped surfaces, the inserting strips 23 on the projection screen device are located in the corresponding second grooves 22 respectively, and the inserting strips 23 on the projection screen device are in lap joint with the inserting strips 23 on the box. This structure can be very convenient connect box 1 and projection screen device, projection screen device when dismantling only need with the hand with two depression bars 25 impress in the third through hole 24 can, can separate two cuttings 23 that the overlap joint is in the same place, it is very convenient to operate, two parts after the split are carried respectively, more laborsaving.

Furthermore, as shown in fig. 1, a rotating handle 29 is fixedly installed at the outer end of the second rotating shaft 15, and the rotating handle 29 is provided with anti-skid threads. The user rotates the second rotating shaft 15 through the rotating handle 29, which is more labor-saving, and the anti-slip lines are arranged, so that the anti-slip effect can be achieved.

Further, as shown in fig. 1 or 2, a switch button 30 and a brightness adjusting knob 31 are fixedly installed on the top surface of the housing 1, and the switch button 30 and the brightness adjusting knob 31 are respectively electrically connected to the spotlight 4. The switch button 30 can realize the start and stop of the spotlight 4, and the brightness adjusting rotary button 31 can adjust the brightness of the spotlight 4 according to the external environment.

Furthermore, as shown in fig. 2, a transparent dustproof film 18 is fixedly installed on the inner wall of the projection frame 17 according to the embodiment, and the transparent dustproof film 18 is located in front of the translucent white cloth 21. Dust is prevented from contacting the translucent white cloth 21 and the transparent dust-proof film 18 is easier to clean than before.

Further, as shown in fig. 1, the power source 2 of the present embodiment is a battery. The power supply 2 can be used repeatedly, and the resource utilization rate is improved.

Further, as shown in fig. 2 or 4, the outer end of the pressing rod 25 of the present embodiment is fixedly installed with the pressing plate 19. The force application area is increased, and the user feels more comfortable when using the device.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a english phonetic symbol teaching device that flexibility is strong which characterized in that: comprises a box body (1), the front and back surfaces of the box body (1) are opened, a power supply (2) is fixedly arranged on the top surface of the inner wall of the box body (1), a spotlight (4) is fixedly arranged in the box body (1), the spotlight (4) is connected with the power supply (2) through a circuit, a shading plate (5) is detachably arranged on the back surface of the box body (1), the center of the bottom surface of the inner wall of the box body (1) is connected with the bottom end of a first rotating shaft (9) through a bearing, a first gear (10) is fixedly arranged at the top end of the first rotating shaft (9), the first rotating shaft (9) is collinear with the central line of the first gear (10), the top surface of the first gear (10) is fixedly connected with the lower ends of a plurality of fixing rods (11), the fixing rods (11) are equidistantly arranged around the central line of the first gear (10), two first grooves (12) are arranged at the top of, a phonetic symbol card (13) is matched between every two first grooves (12) with opposite openings in a clamped mode, the phonetic symbol card (13) is located around the spotlight (4) respectively, a second through hole (14) is formed in one side of the box body (1), a second rotating shaft (15) is installed in the second through hole (14) through a bearing, a second gear (16) is fixedly installed at the inner end of the second rotating shaft (15), the second gear (16) is meshed with the first gear (10), and a projection screen device is detachably installed in the front of the box body (1).

2. The english phonetic symbol teaching device of claim 1, wherein: first through holes (6) are formed in four corners of the light shading plate (5), screw holes (7) are formed in four corners of the back of the box body (1) respectively, the screw holes (7) are collinear with the central lines of the corresponding first through holes (6), a bolt (8) penetrates through each first through hole (6), and the bolts (8) are in threaded fit with the corresponding screw holes (7) respectively.

3. The english phonetic symbol teaching device of claim 1, wherein: and four corners of the bottom surface of the box body (1) are fixedly provided with telescopic supporting legs (28).

4. The english phonetic symbol teaching device of claim 1, wherein: the projection screen device comprises a projection frame (17), the back of the projection frame (17) is detachably connected with the front of a box body (1), one-way perspective glass (20) is fixedly installed on the inner wall of the projection frame (17), the reflecting surface of the one-way perspective glass (20) faces forward, translucent white cloth (21) is fixedly installed on the inner wall of the projection frame (17), and the translucent white cloth (21) is located in front of the one-way perspective glass (20).

5. A flexible english phonetic teaching device according to claim 1 or 3, wherein: the upper side and the lower side of the front surface of the box body (1) are respectively provided with a second groove (22), the interior of the second groove (22) is respectively provided with an inserting strip (23), the outer end of the inserting strip (23) is of a wedge-shaped structure, wedge-shaped surfaces on the inserting strip (23) face the interior of the box body (1), the top surface of the inner wall of the upper second groove (22) is hinged with the middle part of the corresponding inserting strip (23), the bottom surface of the inner wall of the lower second groove (22) is hinged with the middle part of the corresponding inserting strip (23), the top surface and the bottom surface of the box body (1) are respectively provided with a third through hole (24), the third through holes (24) are respectively communicated with the interior of the corresponding second groove (22), a pressure rod (25) in contact fit with the third through holes (24) is respectively penetrated through the third through holes, the inner end of the pressure rod (25) is respectively contacted with the inner end of the corresponding inserting strip (23), the periphery of the, the positioning ring (26) is respectively located in the corresponding second groove (22), the bottom surface of the inner wall of the upper second groove (22) and the top surface of the inner wall of the lower second groove (22) are respectively fixedly connected with one end of a spring (27), the other end of the spring (27) is respectively fixedly connected with the inner end of the corresponding insert (23), the upper side and the lower side of the back of the projection screen device are respectively fixedly provided with the same insert (23), the wedge-shaped structures of the insert (23) on the projection screen device face the box body (1) and the wedge-shaped surfaces face the outside of the projection screen device, the insert (23) on the projection screen device is respectively located in the corresponding second groove (22), and the insert (23) on the projection screen device is in lap joint fit with the insert (23) on the box body (1).

6. The english phonetic symbol teaching device of claim 1, wherein: the outer end of the second rotating shaft (15) is fixedly provided with a rotating handle (29), and the rotating handle (29) is provided with anti-skid grains.

7. The english phonetic symbol teaching device of claim 1, wherein: the switch button (30) and the brightness adjusting rotary button (31) are fixedly arranged on the top surface of the box body (1), and the switch button (30) and the brightness adjusting rotary button (31) are respectively in circuit connection with the spotlight (4).

8. The English phonetic symbol teaching device of claim 4, wherein: and a transparent dustproof film (18) is fixedly arranged on the inner wall of the projection frame (17), and the transparent dustproof film (18) is positioned in front of the semitransparent white cloth (21).

9. The english phonetic symbol teaching device of claim 1, wherein: the power supply (2) is a storage battery.

10. The English phonetic symbol teaching device of claim 5, wherein: the outer end of the pressure lever (25) is fixedly provided with a pressure plate (19).