Interactive oral English speech teaching device

Abstract

The invention discloses an interactive spoken English speech teaching device, and relates to the technical field of spoken English speech teaching, the interactive spoken English speech teaching device comprises a main body mechanism, the main body mechanism comprises a main display screen, the outer surface of the main display screen is fixedly provided with a shell, and the shell is internally provided with two side display screens; the interactive oral English speech teaching device comprises a shell, a main display screen is arranged in the shell, a recovery protection mechanism is arranged on the outer side of the main display screen, the recovery protection mechanism comprises a side screen adjusting protection unit, and the side screen adjusting protection unit is located in the shell and used for adjusting the position of the side display screen and protecting the side display screen. By arranging the side screen adjusting protection unit, the position of the side display screen can be flexibly adjusted according to the requirements of different teaching scenes, it is ensured that the side display screen is at the optimal visual angle during display, meanwhile, when the device is not used, the side display screen can be effectively stored in the shell and is protected in an all-around mode, and the space in the shell is reasonably utilized.

Description

Technical Field

[0001] This invention relates to the field of English oral pronunciation teaching technology, specifically to an interactive English oral pronunciation teaching device. Background Technology

[0002] English oral pronunciation instruction is a core component for improving fluency and accuracy in spoken English. It mainly covers key modules such as pronunciation rules, intonation and rhythm, and linking and weak forms. English oral pronunciation instruction devices encompass three categories: classroom-specific teaching hardware, personal portable learning devices, and intelligent software platforms. They are suitable for different scenarios such as group teaching, individual practice, and test preparation. Interactive English oral pronunciation instruction devices, leveraging technologies such as AI and speech recognition, enhance the fun and engagement of learning through diverse formats such as dialogues, games, and role-playing. They are suitable for different scenarios such as classroom group teaching, children's home learning, and students' test preparation.

[0003] The interactive English speaking and voice teaching device features a three-screen display: one main screen and two side screens. However, in various usage scenarios, the side screens are not easily adjustable due to different student positions, leading to viewing angle deviations that can affect learning effectiveness. Furthermore, when the device is not in use, the main and side screens are easily scratched by impacts if exposed for extended periods. This makes it difficult to ensure the protection of the main and side screens while allowing for flexible adjustment. In diverse teaching scenarios, it is difficult to quickly adjust the position of the main and side screens according to actual needs, and the lack of effective protective measures when the device is not in use makes the main and side screens susceptible to damage from impacts.

[0004] By combining the above problems, we can see that existing interactive English speaking and voice teaching devices are difficult to avoid all of the problems mentioned above when in use. Even if they can be solved, they require the use of external tools, which makes it impossible to achieve the desired effect. Therefore, we propose an interactive English speaking and voice teaching device. Summary of the Invention

[0005] The purpose of this invention is to provide an interactive English speaking and voice teaching device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an interactive English oral teaching device, comprising a main body, the main body including a main display screen, a shell fixedly installed on the outer surface of the main display screen, two side display screens disposed inside the shell, and a recycling protection mechanism disposed on the outer side of the main display screen; The recycling protection mechanism includes a side screen adjustment and protection unit located inside the outer shell. The side screen adjustment and protection unit is used to adjust the position of the side display screen and provide protection, ensuring that the side display screen can be displayed flexibly in different teaching scenarios, and ensuring its protection after use while ensuring flexible display. The recycling protection mechanism also includes a main screen protection unit, which is located inside the outer casing. The main screen protection unit is used to ensure the protection of the main display screen when the main display screen is extended.

[0007] Preferably, the side screen adjustment and protection unit includes two brackets. The outer surface of each bracket is slidably connected to the inside of the outer shell. A nested motor is fixedly installed on the side of each bracket near the side display screen. A frame plate is fixedly installed on the side of each nested motor near the side display screen. Two thick shafts are rotatably connected to the inner wall of each frame plate. A thin shaft is provided inside each pair of thick shafts. A rotating block is fixedly installed on the outer surface of each pair of thick shafts. The outer surface of each rotating block is in contact with the inner wall of the frame plate. A single grooved wheel is fixedly installed on the output end of each nested motor and the outer surface of the thin shaft. A transmission belt is drivingly connected to the outer surface of each pair of single grooved wheels.

[0008] Preferably, a synchronous gear is fixedly installed on the output end of each nested motor and the outer surface of the thick shaft; a support shaft is rotatably connected to the inner wall of each rotating block; a connecting plate is fixedly installed on the outer surface of each support shaft; the side of each connecting plate away from the frame plate is fixedly connected to the side of the side display screen close to the frame plate; a forward bevel gear and a reverse bevel gear are fixedly installed on the outer surface of each thin shaft; and a driven gear meshes with the outer surfaces of each forward bevel gear and the reverse bevel gear.

[0009] Preferably, one end of each driven gear is rotatably connected to the rotating block via a bearing, and a first synchronous pulley is fixedly installed on the outer surface of each driven gear and the outer surface of the support shaft. A first synchronous belt is drivingly connected to the outer surfaces of every two first synchronous pulleys. A single gear is fixedly installed at the output end of each nested motor. A double bevel gear shaft meshes with the outer surface of each single gear, and a fixed plate is rotatably connected to the outer surface of each double bevel gear shaft.

[0010] Preferably, the side of each fixed plate near the main display screen is fixedly connected to the side of the bracket near the side display screen. The outer surface of each double bevel gear shaft is meshed with a steering gear. The inner wall of each steering gear is fixedly installed with a connecting shaft. The outer surface of each connecting shaft is rotatably connected to the inner wall of the fixed plate. The outer surface of each connecting shaft is fixedly installed with two moving gears. The outer surface of each moving gear is meshed with a moving rack. Each moving rack is fixedly installed on the inner wall of the housing. The inner wall of the housing is fixedly installed with four supporting slide rails. The interior of each bracket is slidably connected to the outer surface of the supporting slide rails.

[0011] Preferably, the main screen protection unit includes a lifting plate, the outer surface of which is slidably connected to the interior of the outer shell. Two bases are slidably connected to the interior of the outer shell. A matching nut is fixedly installed on the inner wall of each base. A lifting screw is threadedly connected to the inner wall of each matching nut. The outer surface of each lifting screw is rotatably connected to the inner wall of the outer shell. A second synchronous pulley is fixedly installed on the outer surface of each lifting screw. A second synchronous belt is connected to the outer surfaces of the two second synchronous pulleys. A dual-axis motor is fixedly installed at the top of one of the lifting screws. The outer surface of the dual-axis motor is fixedly connected to the inner wall of the outer shell. Two lifting screws are provided inside the lifting plate, and a lifting shell is threadedly connected to the outer surface of each lifting screw.

[0012] Preferably, the outer surface of each lifting shell is fixedly connected to the inner wall of the outer shell, the outer surface of each lifting screw is fixedly mounted with a retaining shaft, the outer surface of each retaining shaft is slidably connected with a transmission retaining tube, two driving gears are provided below each lifting screw, the inner walls of the two driving gears are fixedly connected to the outer surfaces of the two transmission retaining tubes respectively, and the inner walls of the other two driving gears are fixedly mounted with driven shafts. The output end of each dual-axis motor and the outer surface of the driven shaft are fixedly mounted with second synchronous pulleys, and the outer surfaces of every two second synchronous pulleys are drivenly connected with a third synchronous belt.

[0013] Preferably, a bearing plate is fixedly installed on the outer surface of each of the card shafts, and each bearing plate is fixedly installed on the inner wall of the housing.

[0014] Preferably, each of the bearing plates has a limiting plate slidably connected inside, and the bottom surface of each limiting plate is fixedly connected to the inner bottom wall of the outer shell.

[0015] Preferably, the inner walls of the two drive gears are rotatably connected to support plates, and each support plate is fixedly installed on the inner wall of the outer casing.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, by setting up a side screen adjustment and protection unit, can flexibly adjust the position of the side display screen according to the needs of different teaching scenarios, ensuring that the side display screen is in the best viewing angle when displaying. At the same time, when the device is not in use, the side display screen can be effectively stored inside the shell for all-round protection. It makes reasonable use of the space inside the shell, ensuring that the side display screen has flexible adjustment and good protection performance, while being convenient to carry and move. 2. This invention, by incorporating a main screen protection unit, enables the lifting plate, lifting screw, and related transmission structures to work together when the main display screen is extended, ensuring the lifting plate fits snugly against the back of the main display screen. This provides stable support and protection, preventing damage to the main display screen from accidental collisions. When the device is not in use, the main screen protection unit can retract the main display screen into a specific location inside the casing, further enhancing the protection and effectively extending the lifespan of the main display screen. Moreover, this main screen protection unit works in conjunction with the side screen adjustment protection unit to enhance the overall protective capabilities of the interactive English speaking and voice teaching device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the side display screen of the present invention; Figure 3 This is a schematic diagram of the frame plate of the present invention; Figure 4 This is a schematic diagram of the structure of the thin shaft of the present invention; Figure 5 This is a cross-sectional view of the bracket of the present invention; Figure 6 This is a cross-sectional view of the rotating block of the present invention; Figure 7 This is a schematic diagram of the lifting plate of the present invention; Figure 8 This is a schematic diagram of the structure of the base of the present invention; Figure 9 This is a schematic diagram of the structure of the bearing plate of the present invention.

[0018] In the diagram: 1. Main structure; 11. Main display screen; 12. Outer shell; 13. Side display screen; 2. Recycling and protection mechanism; 21. Side screen adjustment and protection unit; 2101. Bracket; 2102. Synchronous gear; 2103. Moving rack; 2104. Support slide rail; 2105. Single groove wheel; 2106. Thin shaft; 2107. Transmission belt; 2108. Rotating block; 2109. Connecting plate; 2110. Support shaft; 2111. Frame plate; 2112. Nested motor; 2113. Thick shaft; 2114. Connecting plate; 2115. First synchronous belt; 2116. Reverse bevel gear; 2117. Driven gear; 2118. First synchronous pulley; 2119. Single gear; 21 20. Fixed plate; 2122. Moving gear; 2123. Double bevel gear shaft; 2124. Connecting shaft; 2125. Steering gear; 22. Main screen protection unit; 2201. Lifting plate; 2202. Base; 2203. Limiting plate; 2204. Driven shaft; 2205. Lifting screw; 2206. Lifting housing; 2207. Shaft clamp; 2208. Drive gear; 2209. Shaft seat plate; 2210. Support plate; 2211. Dual-axis motor; 2212. Third synchronous belt; 2213. Second synchronous pulley; 2214. Lifting screw; 2215. Second synchronous belt; 2216. Second synchronous pulley; 2217. Matching nut; 2218. Transmission clamp tube. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figures 1-5 The present invention provides a technical solution: an interactive English oral voice teaching device, including a main body 1, the main body 1 including a main display screen 11, a shell 12 fixedly installed on the outer surface of the main display screen 11, two side display screens 13 arranged inside the shell 12, and a recycling protection mechanism 2 arranged on the outer side of the main display screen 11. The recycling protection mechanism 2 includes a side screen adjustment protection unit 21, which is located inside the outer shell 12. The side screen adjustment protection unit 21 is used to adjust the position of the side display screen 13 and provide protection, so as to ensure that the side display screen 13 can be displayed flexibly in different teaching scenarios, and to ensure its protection after use while ensuring flexible display.

[0021] As a further definition of the recycling protection mechanism 2 of the present invention, the side screen adjustment protection unit 21 includes two brackets 2101. The outer surface of each bracket 2101 is slidably connected to the interior of the outer shell 12. A nested motor 2112 is fixedly installed on the side of each bracket 2101 near the side display screen 13. A frame plate 2111 is fixedly installed on the side of each nested motor 2112 near the side display screen 13. Two thick shafts 2113 are rotatably connected to the inner wall of each frame plate 2111. A thin shaft 2106 is provided inside each pair of thick shafts 2113. A rotating block 2108 is fixedly installed on the outer surface of each pair of thick shafts 2113. The outer surface of each rotating block 2108 is in contact with the inner wall of the frame plate 2111. Each nested motor 2112... Single-grooved pulleys 2105 are fixedly mounted on the output end and the outer surface of the thin shaft 2106. A transmission belt 2107 is driven to the outer surface of every two single-grooved pulleys 2105. A synchronous gear 2102 is fixedly mounted on the output end of each nested motor 2112 and the outer surface of the thick shaft 2113. A support shaft 2110 is rotatably connected to the inner wall of each rotating block 2108. A connecting plate 2109 is fixedly mounted on the outer surface of each support shaft 2110. The side of each connecting plate 2109 away from the frame plate 2111 is fixedly connected to the side of the side display screen 13 near the frame plate 2111. A forward bevel gear 2114 and a reverse bevel gear 2116 are fixedly mounted on the outer surface of each thin shaft 2106. The outer surface of each forward bevel gear 2114 and... Each of the outer surfaces of the reverse bevel gears 2116 is meshed with a driven gear 2117. One end of each driven gear 2117 is rotatably connected to the rotating block 2108 via a bearing. A first synchronous pulley 2118 is fixedly installed on the outer surface of each driven gear 2117 and the outer surface of the support shaft 2110. A first synchronous belt 2115 is drivingly connected to the outer surfaces of every two first synchronous pulleys 2118. A single gear 2119 is fixedly installed at the output end of each nested motor 2112. A double bevel gear shaft 2123 is meshed on the outer surface of each single gear 2119. A fixing plate 2120 is rotatably connected to the outer surface of each double bevel gear shaft 2123. The side of each fixing plate 2120 near the main display screen 11 is connected to the side display of the bracket 2101. One side of the screen 13 is fixedly connected. Each double bevel gear shaft 2123 has a steering gear 2125 meshing on its outer surface. A connecting shaft 2124 is fixedly installed on the inner wall of each steering gear 2125. The outer surface of each connecting shaft 2124 is rotatably connected to the inner wall of the fixed plate 2120. Two moving gears 2122 are fixedly installed on the outer surface of each connecting shaft 2124. A moving rack 2103 meshes on the outer surface of each moving gear 2122. Each moving rack 2103 is fixedly installed on the inner wall of the outer casing 12. Four supporting slide rails 2104 are fixedly installed on the inner wall of the outer casing 12. The interior of each bracket 2101 is slidably connected to the outer surface of the supporting slide rail 2104. A side screen adjustment and protection unit 21 is provided.The side display screen 13 can be flexibly adjusted to meet the needs of different teaching scenarios, ensuring that it is at the optimal viewing angle. When not in use, it can be effectively stored inside the outer casing 12 for comprehensive protection. This design makes efficient use of the internal space of the casing 12, ensuring both flexible adjustment and good protection while also making it easy to carry and move.

[0022] The specific implementation of this embodiment is as follows: When using the side display screen 13, the nested motor 2112 is started. The nested motor 2112 drives the single grooved wheel 2105 to rotate. The single grooved wheel 2105 drives another single grooved wheel 2105 to rotate through the transmission belt 2107, thereby causing the thin shaft 2106 to rotate. The rotation of the thin shaft 2106 drives the forward bevel gear 2114 and the reverse bevel gear 2116 to rotate. The forward bevel gear 2114 and the reverse bevel gear 2116 respectively drive the driven gear 2117 to rotate. The driven gear 2117 drives the support shaft 2110 to rotate through the first synchronous pulley 2118 and the first synchronous belt 2115. The support shaft 2110 drives the connecting plate 2109 to rotate. The connecting plate 2109 drives the side display screen 13 to rotate, thereby realizing the adjustment of the angle of the side display screen 13. One of the output ends of the nested motor 2112 drives the synchronous gear 2102 to rotate. The synchronous gear 2102 drives the thick shaft 2110 to rotate. The side display screen 13 rotates, and the thick shaft 2113 drives the rotating block 2108 to rotate. The rotating block 2108 further assists the side display screen 13 in adjusting its position. At the same time, the nested motor 2112 has three outputs, with two nested shafts and an independent single shaft. It is a multi-axis nested motor and an industrial customized product. The other output end of the nested motor 2112 drives the single gear 2119 to rotate. The single gear 2119 drives the double bevel gear shaft 2123 to rotate. The double bevel gear shaft 2123 drives the steering gear 2125 to rotate. The steering gear 2125 drives the moving gear 2122 to rotate through the connecting shaft 2124. The moving gear 2122 moves on the moving rack 2103, causing the bracket 2101 to slide on the support slide rail 2104, thereby driving the side display screen 13 to move as a whole, realizing the extension and retraction of the side display screen 13. When the device is not in use, the side display screen 13 is stored inside the outer casing 12 for protection.

[0023] Example 2: Please refer to Figure 1 and Figures 6-8 The present invention provides a technical solution: an interactive English oral voice teaching device. The present invention makes corresponding improvements to the technical problems mentioned in the background art. The recycling protection mechanism 2 also includes a main screen protection unit 22, which is located inside the outer shell 12. The main screen protection unit 22 is used to ensure that the main display screen 11 has a protective function when the main display screen 11 is extended.

[0024] As a further definition of the recycling protection mechanism 2 of the present invention, the main screen protection unit 22 includes a lifting plate 2201. The outer surface of the lifting plate 2201 is slidably connected to the interior of the outer shell 12. Two bases 2202 are slidably connected inside the outer shell 12. A matching nut 2217 is fixedly installed on the inner wall of each base 2202. A lifting screw 2214 is threadedly connected to the inner wall of each matching nut 2217. The outer surface of each lifting screw 2214 is rotatably connected to the inner wall of the outer shell 12. A second synchronous pulley 2216 is fixedly installed on the outer surface of each lifting screw 2214. The two second synchronous pulleys 2216... The outer surface of the 6 is connected to a second synchronous belt 2215. A dual-axis motor 2211 is fixedly installed at the top of one of the lifting screws 2214. The outer surface of the dual-axis motor 2211 is fixedly connected to the inner wall of the outer casing 12. The lifting plate 2201 is provided with two lifting screws 2205 inside. The outer surface of each lifting screw 2205 is threadedly connected to a lifting shell 2206. The outer surface of each lifting shell 2206 is fixedly connected to the inner wall of the outer casing 12. A retaining shaft 2207 is fixedly installed on the outer surface of each lifting screw 2205. A transmission retaining tube is slidably connected to the outer surface of each retaining shaft 2207. 2218, each lifting screw 2205 has two driving gears 2208 below it. The inner walls of the two driving gears 2208 are fixedly connected to the outer surfaces of the two transmission tubes 2218 respectively. The inner walls of the other two driving gears 2208 are fixedly installed with driven shafts 2204. The output end of each dual-axis motor 2211 and the outer surface of the driven shaft 2204 are fixedly installed with second synchronous pulleys 2213. The outer surfaces of every two second synchronous pulleys 2213 are connected by a third synchronous belt 2212. By setting the main screen protection unit 22, when the main display screen 11 is extended, it can be protected by the lifting plate. The coordinated action of 2201, lifting screw 2205, and related transmission structures enables the lifting plate 2201 to fit tightly against the back of the main display screen 11, providing stable support and protection for the main display screen 11 and preventing damage to the main display screen 11 due to accidental collisions. When the device is not in use, the main screen protection unit 22 can store the main display screen 11 in a specific position inside the outer casing 12, further enhancing the protection effect of the main display screen 11 and effectively extending the service life of the main display screen 11. Moreover, the main screen protection unit 22 and the side screen adjustment protection unit 21 work together to improve the protection of the entire interactive English oral voice teaching device. Please see Figure 7 Each shaft 2207 has a fixed bearing plate 2209 on its outer surface. Each bearing plate 2209 is fixedly installed on the inner wall of the outer casing 12. The bearing plate 2209 can provide stable support for the shaft 2207, ensuring the smoothness of the shaft 2207 during rotation and avoiding shaking or displacement. Please see Figure 8Each bearing plate 2209 has a sliding limit plate 2203 inside, and the bottom surface of each limit plate 2203 is fixedly connected to the inner bottom wall of the outer shell 12. The limit plate 2203 can limit the movement range of the bearing plate 2209 and prevent the bearing plate 2209 from exceeding the specified range during movement. Please see Figure 8 The inner walls of the two drive gears 2208 are rotatably connected to support plates 2210. Each support plate 2210 is fixedly installed on the inner wall of the outer casing 12. Through the support plates 2210, a stable support can be provided for the corresponding drive gear 2208, ensuring the stability of the drive gear 2208 during rotation.

[0025] The specific implementation of this embodiment is as follows: When using the main display screen 11, the dual-axis motor 2211 is started. The dual-axis motor 2211 drives one of the lifting screws 2214 to rotate. This lifting screw 2214 drives the other lifting screw 2214 to rotate synchronously through the second synchronous pulley 2216 and the second synchronous belt 2215. The rotation of the lifting screw 2214 drives the matching nut 2217 and the base 2202 to move downward. During the movement of the base 2202, the outer shell 12 and the main display screen 11 are supported. The main display screen 11 and the side display screen 13 can be used with the height adjusted. The dual-axis motor 2211 also drives the other lifting screw 2214 to rotate synchronously through the second synchronous pulley 2216 and the third synchronous belt 2215. The rotating shaft 2204 drives the driven gear 2208 to rotate via the driven shaft 2204 and the dual-axis motor 2211. The driven gear 2208 drives the clamping shaft 2207 to rotate via the transmission clamp tube 2218. The clamping shaft 2207 drives the lifting screw 2205 to rotate. The lifting screw 2205 rotates inside the lifting housing 2206, simultaneously driving the lifting plate 2201 to move upward. The lifting plate 2201 fits tightly against the back of the main display screen 11, providing stable support and protection for the main display screen 11. When the device is not in use, the dual-axis motor 2211 is started in reverse, and the main display screen 11 is stored in a specific position inside the housing 12 according to the reverse process, further enhancing the protective effect on the main display screen 11.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An interactive English speaking and pronunciation teaching device, comprising a main body (1), characterized in that: The main body (1) includes a main display screen (11), and a shell (12) is fixedly installed on the outer surface of the main display screen (11). Two side display screens (13) are arranged inside the shell (12), and a recycling protection mechanism (2) is arranged on the outer side of the main display screen (11). The recycling protection mechanism (2) includes a side screen adjustment protection unit (21), which is located inside the outer shell (12). The side screen adjustment protection unit (21) is used to adjust the position of the side display screen (13) and provide protection. The recycling protection mechanism (2) also includes a main screen protection unit (22), which is located inside the outer shell (12). The main screen protection unit (22) is used to protect the main display screen (11) when the main display screen (11) is extended.

2. The interactive English speaking and pronunciation teaching device according to claim 1, characterized in that: The side screen adjustment and protection unit (21) includes two brackets (2101). The outer surface of each bracket (2101) is slidably connected to the inside of the outer shell (12). A nested motor (2112) is fixedly installed on the side of each bracket (2101) near the side display screen (13). A frame plate (2111) is fixedly installed on the side of each nested motor (2112) near the side display screen (13). Two thick shafts (2113) are rotatably connected to the inner wall of each frame plate (2111). Each pair of thick shafts (2113) has a thin shaft (2106) inside. A rotating block (2108) is fixedly installed on the outer surface of each pair of thick shafts (2113). The outer surface of each rotating block (2108) is in contact with the inner wall of the frame plate (2111). A single groove wheel (2105) is fixedly installed on the output end of each nested motor (2112) and the outer surface of the thin shaft (2106). A transmission belt (2107) is connected to the outer surface of each pair of single groove wheels (2105).

3. The interactive English speaking and pronunciation teaching device according to claim 2, characterized in that: Synchronous gears (2102) are fixedly installed on the output end of each nested motor (2112) and the outer surface of the thick shaft (2113). A support shaft (2110) is rotatably connected to the inner wall of each rotating block (2108). A connecting plate (2109) is fixedly installed on the outer surface of each support shaft (2110). The side of each connecting plate (2109) away from the frame plate (2111) is fixedly connected to the side of the side display screen (13) close to the frame plate (2111). A forward bevel gear (2114) and a reverse bevel gear (2116) are fixedly installed on the outer surface of each thin shaft (2106). A driven gear (2117) meshes with the outer surface of each forward bevel gear (2114) and the outer surface of each reverse bevel gear (2116).

4. The interactive English speaking and pronunciation teaching device according to claim 3, characterized in that: One end of each driven gear (2117) is rotatably connected to the rotating block (2108) via a bearing. A first synchronous pulley (2118) is fixedly installed on the outer surface of each driven gear (2117) and the outer surface of the support shaft (2110). A first synchronous belt (2115) is drivingly connected to the outer surfaces of every two first synchronous pulleys (2118). A single gear (2119) is fixedly installed at the output end of each nested motor (2112). A double bevel gear shaft (2123) meshes with the outer surface of each single gear (2119). A fixed plate (2120) is rotatably connected to the outer surface of each double bevel gear shaft (2123).

5. The interactive English speaking and pronunciation teaching device according to claim 4, characterized in that: Each of the fixed plates (2120) is fixedly connected to the side of the bracket (2101) near the side display screen (13) on one side of the main display screen (11). Each of the double bevel gear shafts (2123) has a steering gear (2125) meshing on its outer surface. Each of the steering gears (2125) has a connecting shaft (2124) fixedly installed on its inner wall. Each of the connecting shafts (2124) has an outer surface that is rotatably connected to the inner wall of the fixed plate (2120). Each of the connecting shafts (2124) has two moving gears (2122) fixedly installed on its outer surface. Each of the moving gears (2122) has a moving rack (2103) meshing on its outer surface. Each of the moving racks (2103) is fixedly installed on the inner wall of the outer shell (12). The inner wall of the outer shell (12) has four supporting slide rails (2104) fixedly installed. The interior of each bracket (2101) is slidably connected to the outer surface of the supporting slide rail (2104).

6. The interactive English speaking and pronunciation teaching device according to claim 1, characterized in that: The main screen protection unit (22) includes a lifting plate (2201). The outer surface of the lifting plate (2201) is slidably connected to the inside of the outer shell (12). The inside of the outer shell (12) is slidably connected to two bases (2202). Each base (2202) has a matching nut (2217) fixedly installed on its inner wall. Each matching nut (2217) has a lifting screw (2214) threadedly connected to its inner wall. The outer surface of each lifting screw (2214) is rotatably connected to the inner wall of the outer shell (12). 4) The outer surface of each of the two first synchronous rollers (2216) is fixedly installed with a second synchronous belt (2215). The outer surfaces of the two first synchronous rollers (2216) are connected to the second synchronous belt (2215) for transmission. A dual-axis motor (2211) is fixedly installed at the top of one of the lifting screws (2214). The outer surface of the dual-axis motor (2211) is fixedly connected to the inner wall of the outer shell (12). The lifting plate (2201) is provided with two lifting screws (2205). The outer surface of each lifting screw (2205) is threadedly connected to a lifting shell (2206).

7. An interactive English speaking and pronunciation teaching device according to claim 6, characterized in that: The outer surface of each of the lifting shells (2206) is fixedly connected to the inner wall of the outer shell (12). The outer surface of each of the lifting screws (2205) is fixedly mounted with a retaining pin (2207). The outer surface of each retaining pin (2207) is slidably connected with a transmission retaining tube (2218). Two driving gears (2208) are provided below each of the lifting screws (2205). The inner walls of the two driving gears (2208) are fixedly connected to the outer surfaces of the two transmission retaining tubes (2218). The inner walls of the other two driving gears (2208) are fixedly mounted with driven shafts (2204). The output end of each of the dual-axis motors (2211) and the outer surface of the driven shaft (2204) are fixedly mounted with second synchronous pulleys (2213). The outer surfaces of each pair of second synchronous pulleys (2213) are connected by a third synchronous belt (2212).

8. An interactive English speaking and pronunciation teaching device according to claim 7, characterized in that: Each of the card shafts (2207) has a bearing plate (2209) fixedly installed on its outer surface, and each of the bearing plates (2209) is fixedly installed on the inner wall of the outer casing (12).

9. An interactive English speaking and pronunciation teaching device according to claim 8, characterized in that: Each of the bearing plates (2209) has a sliding connection of a limiting plate (2203) inside, and the bottom surface of each limiting plate (2203) is fixedly connected to the inner bottom wall of the outer shell (12).

10. An interactive English speaking and pronunciation teaching device according to claim 7, characterized in that: The inner walls of the two drive gears (2208) are rotatably connected to support plates (2210), and each support plate (2210) is fixedly installed on the inner wall of the outer shell (12).

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