Sound equipment using sound focusing principle

Abstract

The utility model relates to the technical field of broadcasting equipment, and discloses a sound box using the sound focusing principle, which comprises a support, a rotating mechanism used for adjusting the orientation is arranged on the bottom wall of an inner cavity of the support, a mounting plate is arranged on the upper surface of the rotating mechanism, and a sound box body is arranged on the front side of the mounting plate. A splitting mechanism is arranged on the outer side of the sound equipment body, a connecting frame is fixed to the sound equipment body through the splitting mechanism, and a protective net surface is fixed to the interior of the connecting frame. According to the sound equipment based on the sound focusing principle, the rotating mechanism adjusts the orientation of the sound equipment body through cooperation of the driving motor, the rotating column and the rotating plate, so that the sound equipment body can play sound in different directions, the maximum sound playing range of the sound equipment body is increased, and the sound equipment can be suitable for a larger field; meanwhile, the vertical inclination angle of the sound box is adjusted through cooperation of the rotating shaft, the connecting plate, the fixing base, the fixing box and the motor, so that the sound box can play sound to the lower side at a high position.

Description

Technical Field

[0001] The utility model relates to the technical field of broadcasting equipment, in particular to a sound system utilizing the sound focusing principle. Background Art

[0002] Acoustic focusing is the phenomenon that a concave surface forms a concentrated reflection of sound waves, focusing the reflected sound on a certain area, causing the sound to be particularly loud in that area. The broadcasting audio systems used in school campus playgrounds are mostly column speakers. When they are installed in a fixed position in the school playground, they are basically hung on the lamp poles or walls on the playground. The broadcasting sound from the playground can be heard in residential areas or high-rise buildings near the playground. Residents often complain to the school about the interference of such broadcasting sound. Therefore, a speaker that uses the principle of acoustic focusing is designed.

[0003] For example, Chinese patent CN215581676U discloses an anti-disturbance sound-gathering speaker for use in school playgrounds, comprising a shell, a speaker, a protective cavity shell and a protective mesh. The speaker is detachably arranged at the center of the shell through the protective cavity shell. A controller is also arranged in the protective cavity shell. The controller signal is connected to the mid-bass speaker and the tweeter. The utility model has a simple and compact structure and low cost. It utilizes the reflection and focusing principle of sound waves to radiate the sound waves of the speaker forward, and by controlling the sound energy at the rear to radiate the sound waves outside the school, the diffraction control of the sound waves is perfectly realized, and the sound energy at the rear of the speaker to the sound energy of the residential area outside the school is solved, thereby solving the interference of the broadcast sound in the school playground to the nearby residents outside the school.

[0004] The above patent still has certain defects. This patent uses the reflection and focusing principle of sound waves to radiate the sound waves of the loudspeaker forward, thereby solving the interference of the sound broadcast in the school playground to nearby residents outside the school. After the speaker is placed, it cannot adjust its direction by itself and requires manual adjustment by the staff to change the direction of sound wave radiation. Therefore, additional personnel need to be arranged to guard the speaker, which is troublesome to operate. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a speaker utilizing the principle of sound focusing, which has the advantages of convenient remote adjustment of angle, etc., and solves the problem that the speaker cannot adjust its direction by itself after being placed and requires manual adjustment by staff.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sound speaker using the principle of sound focusing, comprising a bracket, a bottom wall of the inner cavity of the bracket is provided with a rotating mechanism for adjusting the direction, a mounting plate is provided on the upper surface of the rotating mechanism, a sound speaker body is provided on the front of the mounting plate, a splitting mechanism is provided on the outer side of the sound speaker body, a connecting frame is fixed to the sound speaker body through the splitting mechanism, and a protective mesh is fixed inside the connecting frame;

[0007] The rotating mechanism includes a driving motor, a rotating column, a rotating plate, an angle adjustment assembly, a support plate, a strong magnet and a rubber block. The driving motor is fixed to the bottom wall of the inner cavity of the bracket, the rotating column is fixed to the outer side of the output shaft of the driving motor, the rotating plate is fixed to the upper surface of the rotating column, the support plate is fixed to the upper surface of the rotating plate, the strong magnet is fixed to the upper surface of the support plate, and the rubber block is fixed to the upper surface of the rotating plate.

[0008] By adopting this technical solution, the sound body can play sounds in different directions, thereby increasing the playback range of the maximum sound of the sound body.

[0009] Furthermore, the angle adjustment assembly includes a rotating shaft, a connecting plate, a fixed seat, a fixed box and a motor, the fixed seat and the fixed box are fixed on the upper surface of the rotating plate, the motor is fixed on the front wall of the inner cavity of the fixed box, the rotating shaft is rotatably connected between the fixed seat and the opposite side of the fixed box and fixed on the outside of the motor output shaft, and the connecting plate is fixed on the outside of the rotating shaft.

[0010] By adopting this technical solution, the up and down tilt angles of the speaker are adjusted so that the speaker can play sound at a higher position to the lower side. A mounting groove is provided between the fixing seat and the opposite side of the fixing box, a bearing is fixed inside the mounting groove, and the rotating shaft is fixed inside the bearing.

[0011] By adopting this technical solution, the rotating shaft will not drive the fixing seat and the fixing box to rotate together when rotating.

[0012] Furthermore, the rubber block is located between the fixing seat and the opposite side of the fixing box and at the front side of the rotating shaft, and the support plate is located at the rear side of the fixing seat and the fixing box and at the upper side of the strong magnet.

[0013] By adopting this technical solution, strong magnets and rubber blocks can restrict the connecting plate, preventing the speaker body from broadcasting toward the sky and causing the sound to not be clearly transmitted to the surroundings.

[0014] Furthermore, the splitting mechanism includes two connecting seats, two auxiliary plates, two screws, two limit plates, no less than two positioning springs, four positioning blocks, two protective boxes, four connecting blocks and four clamping blocks. The two connecting seats are fixed on the outside of the audio body, the two screws are respectively threadedly connected to the inside of the two connecting seats, the two auxiliary plates are respectively fixed on the opposite side of the two screws, the two limit plates are fixed on the opposite side of the two auxiliary plates, the four clamping blocks are respectively fixed on the opposite side of the two limit plates, the four connecting blocks are respectively fixed on the opposite side of the two connecting seats, the two protective boxes are respectively slidably connected to the outside of the four connecting blocks, the positioning springs no less than two are respectively fixed to the inside of the four connecting blocks, and the four positioning blocks are respectively fixed on the opposite side of the left and right positioning blocks.

[0015] By adopting this technical solution, workers can manually separate the speaker body and the connection frame at any time without the help of screwdrivers or other tools.

[0016] Furthermore, the splitting mechanism is symmetrical with respect to the central axis of the sound body, and a limiting groove for sliding connection of the limiting plate is provided inside the connecting seat.

[0017] By adopting this technical solution, the stability of the connection between the connecting frame and the speaker body is ensured, and at the same time, the limiting plate can move smoothly inside the connecting seat.

[0018] Furthermore, the outer sides of the audio body and the connection frame are provided with card slots for inserting card blocks, and the left and right side walls of the inner cavity of the protection box are provided with positioning slots for inserting positioning blocks.

[0019] By adopting this technical solution, the four clamping blocks cooperate with the limiting plates to fix the connection frame on the audio body.

[0020] Furthermore, threaded holes for the screw rod to pass through are formed on opposite sides of the two connecting seats, and the screw rod is threadedly connected to the connecting seats through the threaded holes.

[0021] By adopting this technical solution, it is ensured that the screw rod can enter and exit the interior of the connecting seat while rotating, thereby driving the limit plate to move.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] 1. The speaker utilizes the principle of sound focusing. The rotating mechanism adjusts the orientation of the speaker body through the cooperation of the driving motor, the rotating column and the rotating plate, so that the speaker body can play sounds in different directions, thereby increasing the maximum sound playback range of the speaker body, making it suitable for larger venues. At the same time, the up and down tilt angles of the speaker are adjusted through the cooperation of the rotating shaft, the connecting plate, the fixing seat, the fixing box and the motor, so that the speaker can play sounds to the lower side at a higher place.

[0024] 2. The speaker uses the principle of sound focusing. The disassembly mechanism connects the speaker body and the connection frame through the cooperation of the connecting seat, auxiliary plate, screw, limit plate and clamp block, which is convenient for the staff to manually disassemble the speaker body and the connection frame at any time without the help of screwdrivers and other tools, so that the staff can clean and replace the protective mesh at any time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the rotating mechanism of the utility model;

[0027] Figure 3 This is a schematic diagram of the connection structure between the rotating shaft and the fixed box of the utility model;

[0028] Figure 4 It is a schematic diagram of the splitting mechanism of the utility model.

[0029] In the figure: 1. bracket; 2. rotating mechanism; 201. driving motor; 202. rotating column; 203. rotating plate; 204. supporting plate; 205. strong magnet; 206. rotating shaft; 207. connecting plate; 208. fixing seat; 209. rubber block; 210. fixing box; 211. motor; 3. mounting plate; 4. splitting mechanism; 401. connecting seat; 402. auxiliary plate; 403. screw; 404. limiting plate; 405. positioning spring; 406. positioning block; 407. protective box; 408. connecting block; 409. card block; 5. speaker body; 6. connecting frame; 7. protective mesh. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1 In this embodiment, a sound system utilizing the principle of sound focusing comprises a bracket 1, a bottom wall of the inner cavity of the bracket 1 is provided with a rotating mechanism 2 for adjusting the direction, a mounting plate 3 is provided on the upper surface of the rotating mechanism 2, a sound system body 5 is provided on the front of the mounting plate 3, a splitting mechanism 4 is provided on the outer side of the sound system body 5, a connecting frame 6 is fixed to the sound system body 5 through the splitting mechanism 4, a protective mesh surface 7 is fixed inside the connecting frame 6, the electrical components appearing in the text are all electrically connected to the main controller and the power supply, the main controller can be a conventional known device for control such as a computer, and the existing disclosed power connection technology is not repeated in the text, the industrial power interface is connected, the device is powered on, and the PLC system controls the entire device to operate as expected.

[0032] See also Figure 2-3In order to remotely adjust the direction of the sound, the rotating mechanism 2 in this embodiment includes a driving motor 201, a rotating column 202, a rotating plate 203, an angle adjustment component, a support plate 204, a strong magnet 205 and a rubber block 209. The driving motor 201 is fixed to the bottom wall of the inner cavity of the bracket 1, the rotating column 202 is fixed to the outer side of the output shaft of the driving motor 201, the rotating plate 203 is fixed to the upper surface of the rotating column 202, the support plate 204 is fixed to the upper surface of the rotating plate 203, the strong magnet 205 is fixed to the upper surface of the support plate 204, and the rubber block 209 is fixed to the upper surface of the rotating plate 203. The control method of this application is controlled by a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. In addition, this application is mainly used to protect mechanical devices, so this application will no longer explain the control method and circuit connection in detail.

[0033] In this embodiment, the angle adjustment component includes a rotating shaft 206, a connecting plate 207, a fixing seat 208, a fixing box 210 and a motor 211. The fixing seat 208 and the fixing box 210 are fixed on the upper surface of the rotating plate 203, and the motor 211 is fixed to the front wall of the inner cavity of the fixing box 210. The rotating shaft 206 is rotatably connected between the fixing seat 208 and the fixing box 210 on the opposite side and is fixed on the outside of the output shaft of the motor 211. The connecting plate 207 is fixed on the outside of the rotating shaft 206. The fixing seat 208 and the fixing box 210 on the opposite side are both provided with installation grooves. A bearing is fixed inside, and the rotating shaft 206 is fixed inside the bearing, so that the rotating shaft 206 will not drive the fixing seat 208 and the fixing box 210 to rotate together when rotating. The rubber block 209 is located between the fixing seat 208 and the fixing box 210 on the opposite side and is located on the front side of the rotating shaft 206. The support plate 204 is located on the rear side of the fixing seat 208 and the fixing box 210 and on the upper side of the strong magnet 205, so that the strong magnet 205 and the rubber block 209 restrict the connecting plate 207 to prevent the audio body 5 from playing toward the sky, resulting in the sound not being able to be clearly transmitted to the surroundings.

[0034] It should be noted that the rotating mechanism 2 adjusts the orientation of the audio body 5 by cooperating with the driving motor 201, the rotating column 202 and the rotating plate 203, so that the audio body 5 can play sounds in different directions, thereby increasing the maximum sound playback range of the audio body 5 and making it suitable for larger venues.

[0035] See also Figure 4In order to facilitate cleaning of dust on the protective mesh surface 7, the splitting mechanism 4 in this embodiment includes two connecting seats 401, two auxiliary plates 402, two screws 403, two limit plates 404, at least two positioning springs 405, four positioning blocks 406, two protective boxes 407, four connecting blocks 408 and four clamping blocks 409. The two connecting seats 401 are fixed to the outside of the audio body 5, the two screws 403 are respectively threadedly connected to the inside of the two connecting seats 401, the two auxiliary plates 402 are respectively fixed on the opposite sides of the two screws 403, and the two limit plates 404 are fixed to the outside of the audio body 5. Fixed on the opposite side of the two auxiliary plates 402, the limit plate 404 is in the shape of a rectangular parallelepiped. When the rectangular limit plate 404 moves, it will not rotate with the screw 403. The four clamping blocks 409 are respectively fixed on the opposite side of the two limit plates 404, and the four connecting blocks 408 are respectively fixed on the opposite sides of the two connecting seats 401. The two protective boxes 407 are respectively slidably connected to the outside of the four connecting blocks 408, and the number of positioning springs 405 of not less than two is respectively fixed inside the four connecting blocks 408, and the four positioning blocks 406 are respectively fixed on the opposite sides of the positioning blocks 406 on the left and right sides.

[0036] In this embodiment, the splitting mechanism 4 is symmetrical to each other with the central axis of the audio body 5 as the symmetry line. A limiting groove for the sliding connection of the limiting plate 404 is provided inside the connecting seat 401, ensuring the stability of the connection between the connecting frame 6 and the audio body 5, and at the same time allowing the limiting plate 404 to move smoothly inside the connecting seat 401. The outer sides of the audio body 5 and the connecting frame 6 are provided with card slots for the plug-in of the card block 409, so that the four card blocks 409 can cooperate with the limiting plate 404 to fix the connecting frame 6 on the audio body 5. The left and right side walls of the inner cavity of the protective box 407 are provided with positioning grooves for the plug-in of the positioning block 406. The cooperation between the positioning block 406 and the positioning groove prevents the protective box 407 from being separated from the connecting block 408. The two connecting seats 401 are provided with threaded holes for the screw 403 to pass through on the opposite sides, and the screw 403 is threadedly connected to the connecting seat 401 through the threaded hole, ensuring that the screw 403 can enter and exit the interior of the connecting seat 401 while rotating, thereby driving the limiting plate 404 to move.

[0037] It should be noted that the splitting mechanism 4 connects the audio body 5 and the connecting frame 6 through the cooperation of the connecting seat 401, the auxiliary plate 402, the screw 403, the limit plate 404 and the block 409, so that the staff can manually split the audio body 5 and the connecting frame 6 at any time without the aid of tools such as screwdrivers, so that the staff can clean and replace the protective mesh 7 at any time.

[0038] The working principle of the above embodiment is:

[0039] (1) After the speaker is placed on the bracket 1, the speaker is turned on to start playing sound. When the direction of the speaker needs to be adjusted, the driving motor 201 is started. The driving motor 201 drives the rotating column 202 to rotate through the output shaft. The rotating column 202 drives the speaker to start rotating through the rotating plate 203. When the direction is adjusted to a suitable direction, the driving motor 201 is turned off. When the upper and lower angles of the speaker need to be adjusted, the motor 211 is started. The motor 211 drives the connecting plate 207 to rotate through the output shaft 206, and drives the mounting plate 3 to rotate through the connecting plate 207. The speaker body 5 rotates with the mounting plate 5, thereby adjusting the speaker body. 5, when the connecting plate 207 is in contact with the rubber block 209, the motor 211 is turned off, and the sound body 5 plays the sound vertically downward; when the connecting plate 207 is in contact with the strong magnet 205 and the back strong magnet 205 is magnetically attracted, the power off 211 is turned off, and the sound body 5 plays the sound toward the front; the rotating mechanism 2 adjusts the direction of the sound body 5 through the cooperation of the driving motor 201, the rotating column 202, and the rotating plate 203, so that the sound body 5 can play the sound in different directions, thereby increasing the maximum sound playback range of the sound body 5, so that it can be suitable for a larger venue.

[0040] (2) When it is necessary to clean or replace the protective mesh 7, the two protective boxes 407 are pulled to the left and right sides respectively to separate the protective boxes 407 from the connecting seat 401, and then the two auxiliary plates 402 are rotated respectively. The auxiliary plates 402 drive the screw rod 403 to rotate, and the screw rod 403 drives the limit plate 404 to move together. The block 409 moves together with the limit plate 404 and gradually separates from the interior of the audio body 5 and the connecting frame 6. When the block 409 is completely separated from the interior of the audio body 5 and the connecting frame 6, the connecting frame 6 and the audio body 5 can be separated, and then the latter can be cleaned and the protective mesh 7 can be replaced. The disassembly mechanism 4 connects the audio body 5 and the connecting frame 6 through the cooperation of the connecting seat 401, the auxiliary plates 402, the screw rod 403, the limit plate 404 and the block 409, so that the staff can manually disassemble the audio body 5 and the connecting frame 6 at any time without the help of tools such as screwdrivers, so that the staff can clean and replace the protective mesh 7 at any time.

Claims

1. A sound system utilizing the principle of sound focusing, comprising a bracket (1), characterized in that: The bottom wall of the inner cavity of the bracket (1) is provided with a rotating mechanism (2) for adjusting the orientation, the upper surface of the rotating mechanism (2) is provided with a mounting plate (3), the front surface of the mounting plate (3) is provided with a sound body (5), the outer side of the sound body (5) is provided with a splitting mechanism (4), the sound body (5) is fixed to a connecting frame (6) through the splitting mechanism (4), and a protective mesh surface (7) is fixed inside the connecting frame (6); The rotating mechanism (2) comprises a driving motor (201), a rotating column (202), a rotating plate (203), an angle adjustment assembly, a supporting plate (204), a strong magnet (205) and a rubber block (209); the driving motor (201) is fixed to the bottom wall of the inner cavity of the bracket (1); the rotating column (202) is fixed to the outer side of the output shaft of the driving motor (201); the rotating plate (203) is fixed to the upper surface of the rotating column (202); the supporting plate (204) is fixed to the upper surface of the rotating plate (203); the strong magnet (205) is fixed to the upper surface of the supporting plate (204); and the rubber block (209) is fixed to the upper surface of the rotating plate (203).

2. The sound system using the sound focusing principle according to claim 1, characterized in that: The angle adjustment component comprises a rotating shaft (206), a connecting plate (207), a fixing seat (208), a fixing box (210) and a motor (211); the fixing seat (208) and the fixing box (210) are fixed on the upper surface of the rotating plate (203); the motor (211) is fixed on the front wall of the inner cavity of the fixing box (210); the rotating shaft (206) is rotatably connected between the fixing seat (208) and the fixing box (210) on opposite sides and is fixed on the outer side of the output shaft of the motor (211); and the connecting plate (207) is fixed on the outer side of the rotating shaft (206).

3. The sound system using the sound focusing principle according to claim 2, characterized in that: A mounting groove is provided between the fixing seat (208) and the fixing box (210) on opposite sides, a bearing is fixed inside the mounting groove, and the rotating shaft (206) is fixed inside the bearing.

4. The sound system using the sound focusing principle according to claim 1, characterized in that: The rubber block (209) is located between the opposite sides of the fixing seat (208) and the fixing box (210) and is located in front of the rotating shaft (206), and the support plate (204) is located behind the fixing seat (208) and the fixing box (210) and is located on the upper side of the strong magnet (205).

5. The sound system utilizing the sound focusing principle according to claim 1, characterized in that: The splitting mechanism (4) comprises two connecting seats (401), two auxiliary plates (402), two screw rods (403), two limiting plates (404), at least two positioning springs (405), four positioning blocks (406), two protective boxes (407), four connecting blocks (408) and four clamping blocks (409), the two connecting seats (401) are fixed on the outside of the sound body (5), the two screw rods (403) are respectively threadedly connected to the inside of the two connecting seats (401), and the two auxiliary plates (402) are respectively fixed on the opposite sides of the two screw rods (403). On one side, the two limit plates (404) are fixed on the opposite side of the two auxiliary plates (402), the four clamping blocks (409) are respectively fixed on the opposite side of the two limit plates (404), the four connecting blocks (408) are respectively fixed on the opposite side of the two connecting seats (401), the two protection boxes (407) are respectively slidably connected to the outside of the four connecting blocks (408), the positioning springs (405) of not less than two are respectively fixed inside the four connecting blocks (408), and the four positioning blocks (406) are respectively fixed on the opposite side of the positioning blocks (406) on the left and right sides.

6. The sound system using the sound focusing principle according to claim 5, characterized in that: The splitting mechanism (4) is symmetrical with respect to the left and right sides of the acoustic body (5) with the central axis as the symmetry line, and a limiting groove for the limiting plate (404) to be slidably connected is provided inside the connecting seat (401).

7. The sound system using the sound focusing principle according to claim 5, characterized in that: The outer sides of the acoustic body (5) and the connection frame (6) are provided with card slots for the card block (409) to be inserted into, and the left and right side walls of the inner cavity of the protection box (407) are provided with positioning slots for the positioning block (406) to be inserted into.

8. The sound system utilizing the sound focusing principle according to claim 5, characterized in that: The two connecting seats (401) are each provided with a threaded hole for the screw rod (403) to pass through on one side opposite to the other, and the screw rod (403) is threadedly connected to the connecting seat (401) through the threaded hole.

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