Theoretical learning playing and reading guiding device
By designing a portable speaker and amplifier system, the problem of gradually weakening sound caused by fixed installation of speakers in the classroom was solved, achieving uniform sound wave coverage around the classroom and improving teaching effectiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI SOFTWARE INST
- Filing Date
- 2024-11-04
- Publication Date
- 2026-04-24
AI Technical Summary
The fixed installation of the sound system in the classroom causes the sound to gradually weaken as it travels to the back of the classroom, resulting in poor teaching quality.
Design a playback guide device that includes a speaker, a main slide rail, a secondary slide rail, a slider, a loudspeaker, placement components, and support components. By moving the positions of the speaker and loudspeaker, ensure that the sound covers the entire classroom.
This ensures that sound is evenly distributed around the classroom, improving teaching quality and avoiding the problem of sound gradually weakening at the back.
Smart Images

Figure CN224164008U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of playback guidance technology, specifically to a theoretical learning playback guidance device. Background Technology
[0002] In university classrooms, due to the large number of students and the noise, university teachers usually use loudspeakers or handheld microphones to amplify their voices so that students can hear the content clearly. This is especially true when teaching ideological and political science, which involves a lot of conceptual content. Teachers often pre-record their lessons and then teach them to students via pre-recorded videos. This method saves time and also prevents damage to the teacher's voice.
[0003] However, in classrooms, loudspeakers or speakers are usually fixed in the position of the blackboard or multimedia equipment, making it difficult to move them around. If the classroom is large and spacious, the sound may gradually weaken as it travels from the front to the back, making it difficult for students sitting at the back of the classroom to hear clearly, resulting in poor teaching quality. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a theoretical learning playback guidance device to solve the problem mentioned in the background art where the sound system in the classroom is fixed in a certain position, causing the sound to gradually weaken as it travels to the back of the classroom.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution.
[0008] A theoretical learning playback guide device includes a speaker, main slide rails, secondary slide rails, sliders, amplifiers, placement components, and support components. The speaker has placement slots on all four sides. Four main slide rails are rotatably mounted in the four placement slots of the speaker. Four secondary slide rails are hinged to the sides of the four main slide rails. Four sliders are slidably mounted on the four main slide rails. Four amplifiers are detachably mounted on the tops of the four sliders. Four placement components are positioned on the four main slide rails for placing the amplifiers. Four support components are positioned around the speaker to support the main slide rails.
[0009] Furthermore, the placement assembly includes a placement box, a sliding frame, a sliding plate, a baffle, and a bolt. The placement box is fixedly installed on the top of the main slide rail. Two sliding frames are provided, each fixed to one side of the placement box. Each sliding frame has a sliding groove and several threaded holes. Two sliding plates are provided, each slidably installed on one of the two sliding frames. Each sliding plate has threaded holes on its side. The baffle is fixedly installed between the two sliding plates. The bolt is threaded into the threaded hole.
[0010] Furthermore, the support assembly includes a rotating frame, a support rod, a fixed frame, and two bolts. The rotating frame is fixedly installed on the side of the speaker. One end of the support rod is rotatably installed in the rotating frame, and the top surface of the other end of the support rod is provided with a threaded hole. The fixed frame is fixedly installed on the side of the speaker, and the top end of the fixed frame is provided with a threaded hole. The two bolts are threaded into the threaded hole.
[0011] Furthermore, the loudspeaker is electrically connected to the speaker via a wire, and a through hole is provided on the side of the placement box, through which the wire passes.
[0012] Furthermore, the side of the baffle contacts the side of the placement box, and when the bottom end of the baffle slides to the top of the main slide rail, the threaded hole of the sliding plate and the threaded hole of the sliding frame are at the same horizontal position.
[0013] Furthermore, a pull rod is fixedly installed at the top of the speaker, and several casters are installed at the bottom of the speaker.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, this utility model provides a theoretical learning playback guide device, which has the following beneficial effects:
[0016] 1. In this utility model, the speaker can be pulled to the center of the classroom by a handle and casters. Then, by moving the slider on the main slide rail and the auxiliary slide rail, the amplifier can be pulled, so that the sound can be transmitted to the four sides of the classroom through the four amplifiers, avoiding the sound gradually weakening when it reaches the back of the classroom.
[0017] 2. In this utility model, when in use, the main slide rail can be supported by the support component, so that the loudspeaker can transmit sound to the surroundings. When not in use, the four loudspeakers can be placed by the placement component, and then the main slide rail and the auxiliary slide rail can be rotated into the placement slot of the speaker.
[0018] Therefore, this theoretical learning playback guide device, through the cooperation of the speaker, main slide rail, secondary slide rail, slider, amplifier, placement component and support component, can amplify the sound output to all four sides of the classroom by moving the speaker and amplifying the sound output through four amplifiers, so that the sound can be received in all four sides of the classroom. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the structure of the placement component of this utility model;
[0021] Figure 3 This utility model Figure 2 A magnified view of a portion of point A in the middle;
[0022] Figure 4 This is a schematic diagram of the structure of the support component of this utility model.
[0023] In the diagram: 1. Speaker; 2. Main slide rail; 3. Secondary slide rail; 4. Slider; 5. Amplifier; 6. Pull rod; 7. Caster wheel; 101. Placement box; 102. Sliding frame; 103. Sliding plate; 104. Baffle; 105. Bolt 1; 201. Rotating frame; 202. Support rod; 203. Fixing frame; 204. Bolt 2. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1 to 4A theoretical learning playback guide device includes a speaker 1, main slide rails 2, secondary slide rails 3, sliders 4, amplifiers 5, placement components, and support components. The speaker 1 has placement slots on all four sides. Four main slide rails 2 are rotatably mounted in their respective placement slots. Four secondary slide rails 3 are hinged to the sides of the four main slide rails 2. Four sliders 4 are slidably mounted on the four main slide rails 2. Four amplifiers 5 are detachably mounted on the tops of the four sliders 4. Four placement components are mounted on the four main slide rails 2 for holding the amplifiers 5. There are four support components, which are respectively set around the speaker 1 to support the main slide rail 2. Specifically, since the top of the speaker 1 is fixedly installed with a pull rod 6 and the bottom of the speaker 1 is installed with several casters 7, the speaker 1 can be moved to the center of the classroom by pulling the pull rod 6. Then, the position of the amplifier 5 on the main slide rail 2 can be adjusted according to the distance. The auxiliary slide rail 3 and the main slide rail 2 can be rotated to a horizontal position to allow the amplifier 5 to move a further distance. After the movement is completed, the main slide rail 2 can be supported by the support components to allow sound to propagate. After use, the amplifier 5 can be placed in the placement component, and then the main slide rail 2 can be rotated to place it into the placement slot of the speaker 1.
[0026] In this embodiment, reference Figure 2 Slide in Figure 3 The placement assembly includes a placement box 101, a sliding frame 102, a sliding plate 103, a baffle 104, and a bolt 105. The placement box 101 is fixedly installed on the top of the main slide rail 2. Two sliding frames 102 are provided, each fixed to one side of the placement box 101. Each sliding frame 102 has a sliding groove and several threaded holes. Two sliding plates 103 are provided, each slidably installed on one of the two sliding frames 102. Each sliding plate 103 has threaded holes on its side. The baffle 104 is fixedly installed between the two sliding plates 103. The bolt 105 is threaded into the threaded hole. Specifically, the expansion... After the speaker 5 slides into the placement box 101, the baffle 104 can be moved down by moving the sliding bracket 102. The side of the baffle 104 contacts the side of the placement box 101. When the bottom of the baffle 104 slides to the top of the main slide rail 2, the threaded hole of the sliding plate 103 and the threaded hole of the sliding bracket 102 are at the same horizontal position. When the bottom of the baffle 104 contacts the top of the main slide rail 2, the bolt 105 is threaded into the threaded holes of the sliding plate 103 and the sliding bracket 102 to fix it. The speaker 5 is electrically connected to the speaker 1 through the wire. The side of the placement box 101 is provided with a wire hole through which the wire passes.
[0027] In this embodiment, reference Figure 4The support assembly includes a rotating frame 201, a support rod 202, a fixed frame 203, and a bolt 204. The rotating frame 201 is fixedly installed on the side of the speaker 1. One end of the support rod 202 is rotatably installed inside the rotating frame 201, and the top surface of the other end of the support rod 202 is provided with a threaded hole. The fixed frame 203 is fixedly installed on the side of the speaker 1, and the top end of the fixed frame 203 is provided with a threaded hole. The bolt 204 is threaded into the threaded hole. Specifically, after the amplifier 5 is pulled out, the support rod 202 can be rotated so that its top end contacts the bottom end of the main slide rail 2, thereby supporting it. Then, the bolt 204 is threaded into the threaded holes of the support rod 202 and the fixed frame 203 to fix the support rod 202.
[0028] In summary, when using this theoretical learning playback guidance device, firstly, pull the lever 6 to move the speaker 1 to the center of the classroom, rotate the main slide rail 2 to a horizontal position, and then slide the amplifier 5 on the main slide rail 2 by sliding the slider 4. This allows adjustment of the distance between the amplifier 5 and the students. Furthermore, the hinged auxiliary slide rail 3 can be attached to the main slide rail 2, thus increasing the sliding distance of the amplifier 5. It should be noted that magnets are installed on the sides and bottom of both the main slide rail 2 and the auxiliary slide rail 3, allowing the auxiliary slide rail 3 to be attached to the main slide rail 2 after rotation. After sliding, rotate the support rod 202 so that its top end contacts the bottom end of the main slide rail 2 for support. Then, thread the bolt 204 into the threaded holes of the support rod 202 and the fixing bracket 203 to fix the support rod 202. Thus, the sound from the speaker 1 can be transmitted through the four amplifiers 5. The loudspeaker amplifies the sound around the classroom so that all students can hear clearly. After use, the loudspeaker 5 can be slid into the placement box 101. Then, by moving the sliding bracket 102, the baffle 104 is moved down. When the bottom of the baffle 104 contacts the top of the main slide rail 2, the bolt 105 is threaded into the threaded hole of the sliding plate 103 and the sliding bracket 102 to fix it. The loudspeaker 5 is placed in the placement box 101. Finally, the auxiliary slide rail 3 is rotated to the bottom of the main slide rail 2, and then the main slide rail 2 is rotated to place it into the placement slot of the speaker 1. The support rod 202 can be used to block the side of the placement slot to prevent the main slide rail 2 from rotating out of the placement slot when the speaker 1 is moved. It should be noted that after the main slide rail 2 and the auxiliary slide rail 3 are rotated into the placement slot of the speaker 1, the placement box 101 rotates exactly 90° and fits against the side of the speaker 1.
[0029] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A theoretical learning playback and guidance device, characterized in that, include: A speaker (1) is provided with placement slots on all four sides; The main slide rail (2) is provided in four parts, and the four main slide rails (2) are respectively rotatably installed in the four placement slots of the speaker (1); A secondary slide rail (3) is provided, and four secondary slide rails (3) are respectively hinged to the sides of the four main slide rails (2); Slider (4), four sliders (4) are provided, and the four sliders (4) are respectively slidably installed on the four main slide rails (2); A loudspeaker (5), four loudspeakers (5) are provided, and the four loudspeakers (5) are detachably installed on the top of the four sliders (4); The placement components are provided in four parts, and the four placement components are respectively set on the four main slide rails (2) for placing the loudspeaker (5); The support components are provided in four parts, which are respectively arranged around the speaker (1) to support the main slide rail (2).
2. The theoretical learning playback guidance device according to claim 1, characterized in that, The placement component includes: Placement box (101), which is fixedly installed on the top of the main slide rail (2); Sliding bracket (102), two sliding brackets (102) are provided, the two sliding brackets (102) are respectively fixed on both sides of the placement box (101), and the sliding bracket (102) is provided with a sliding groove and several threaded holes; Sliding plate (103), two sliding plates (103) are provided, the two sliding plates (103) are respectively slidably mounted on the two sliding frames (102), and threaded holes are provided on the side of the sliding plate (103); A baffle (104) is fixedly installed between the two sliding plates (103); Bolt 1 (105) is threaded into the threaded hole.
3. The theoretical learning playback guidance device according to claim 2, characterized in that, The support components include: A rotating frame (201) is fixedly installed on the side of the speaker (1); A support rod (202) is provided, one end of which is rotatably mounted in the rotating frame (201), and the other end of the support rod (202) has a threaded hole on its top surface; A mounting bracket (203) is fixedly installed on the side of the speaker (1), and a threaded hole is provided at the top of the mounting bracket (203); Bolt 2 (204) is threaded into the threaded hole.
4. The theoretical learning playback guidance device according to claim 3, characterized in that, The loudspeaker (5) is electrically connected to the speaker (1) via a wire, and the side of the placement box (101) has a through hole through which the wire passes.
5. The theoretical learning playback guidance device according to claim 4, characterized in that, The side of the baffle (104) contacts the side of the placement box (101), and when the bottom end of the baffle (104) slides to the top of the main slide rail (2), the threaded hole of the sliding plate (103) and the threaded hole of the sliding frame (102) are at the same horizontal position.
6. The theoretical learning playback guidance device according to claim 5, characterized in that, A pull rod (6) is fixedly installed at the top of the speaker (1), and several casters (7) are installed at the bottom of the speaker (1).