Sound focusing pickup device

Abstract

The utility model discloses a sound focusing pickup device, which comprises a base and a concave reflector, a cavity is arranged in the base, a rotating rod is rotatably mounted at the top of the base, and the bottom end of the rotating rod penetrates through the base and is connected with a first driving motor. Through the cooperative use of the base, the cavity, the rotating rod, the first driving motor and the rotating piece, the concave reflector can be horizontally rotated and adjusted, in addition, through the cooperative use of the [-shaped frame and the power assembly, the inclination angle of the concave reflector can be adjusted, and the adjustment precision is improved. The concave reflector can be aligned with sounds with different heights right ahead by arranging the concave reflector, and the concave reflector which is originally in an inclined state can be rotated and adjusted by arranging the L-shaped supporting plate and the rotating assembly for cooperative use, so that the adjusting range of the concave reflector is further enlarged, and the sound quality is improved. And therefore, the sound can be aligned with sounds in multiple directions around, and the pickup quality can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sound pickup devices, in particular to a sound focusing sound pickup device. Background Art

[0002] The principle of acoustic focusing is a technology that controls the propagation direction and intensity of sound waves to enhance the sound in a specific area. This technology can effectively reduce the interference of environmental noise and improve the clarity and recognition of sound. The microphone is an important device that converts sound into electrical signals. It converts sound fluctuations into electrical signals through mechanisms such as vibration or piezoelectric effect for subsequent processing and analysis. It has been widely used in daily life. However, in the prior art, structural problems may cause the microphone to not pick up sound ideally.

[0003] For example, a sound focusing pickup device (Announcement No.: CN214627366U) includes a fixed base, a battery, a control chip, a motor, a concave reflector, a beam alignment module, a camera and an array microphone. The fixed base is located at the bottom of the entire device, a battery is provided on one side of the fixed base, a control chip is provided on the other side of the fixed base, a motor is provided on the inner side of the fixed base, a rotating rod is provided on the upper end of the motor, a beam alignment module is provided in the middle of the concave reflector, a camera is provided on one side of the beam alignment module, and an array microphone is provided on one side of the camera. The utility model can check the direction of the sound and automatically adjust the position of the concave reflector. The motor drives the concave reflector to adjust its position so that it faces the direction of the sound. The array microphone signal arranged in the device can support the operation of various voice recognition, voice enhancement, and voice separation modules, and can also play a monitoring role in conjunction with the camera.

[0004] In the above device, only the concave reflector can be adjusted for horizontal rotation. In actual use, the direction of sound may be transmitted from multiple angles around. The concave reflector that only supports horizontal rotation adjustment cannot be well aligned with the sound in all directions, that is, there is a problem of affecting the sound pickup quality. Therefore, we need to propose a sound focusing pickup device. Utility Model Content

[0005] The purpose of the utility model is to provide a sound focusing pickup device, aiming to solve the problem that in the prior art, only the concave reflector can be adjusted by horizontal rotation. In actual use, the direction of the sound may be transmitted from multiple angles around. The concave reflector that only supports horizontal rotation adjustment cannot be well aligned with the sounds in various directions, thereby affecting the pickup quality.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A sound focusing pickup device, comprising a base and a concave reflector. A cavity is provided inside the base. A rotating rod is rotatably installed on the top of the base. The bottom end of the rotating rod penetrates through the base and is connected to a first driving motor. The top end of the rotating rod is fixedly connected to a rotating member. A rotating member is fixedly connected to the top of the rotating member. An L-shaped support plate is provided on one side of the L-shaped support plate. A rotating assembly for rotating the concave reflector is provided. A C-shaped frame is provided at the rotating end of the rotating assembly. A power assembly for adjusting the tilt angle of the concave reflector is provided on the inner wall of the C-shaped frame. The concave reflector is connected to the adjusting end of the power assembly.

[0008] Preferably, the power assembly includes a worm. The top end and the bottom end of the worm are respectively rotatably installed on the inner top and the inner bottom of the C-shaped frame. The top end of the worm penetrates through the C-shaped frame and is connected to a second driving motor. A worm gear is meshed on one side of the worm. A rotating shaft is fixedly inserted inside the worm gear. Two groups of connecting rods are symmetrically and fixedly connected to the outer wall of the rotating shaft. One end of each of the two groups of connecting rods is fixedly connected to a mounting plate. The concave reflector is fixedly installed on one side wall of the mounting plate.

[0009] Preferably, two groups of rotating seats are symmetrically and fixedly installed on one side inner wall of the C-shaped frame. The two ends of the rotating shaft are respectively rotatably installed on the opposite side walls of the two groups of rotating seats.

[0010] Preferably, the rotating assembly includes a rotating rod. One end of the rotating rod is rotatably installed on one side wall of the L-shaped support plate. One end of the rotating rod penetrates through the L-shaped support plate and is connected to a third driving motor. The other end of the rotating rod is fixedly connected to a turntable. The C-shaped frame is fixedly installed on one side wall of the turntable.

[0011] Preferably, the first driving motor is fixedly installed on the inner bottom of the cavity. One end of the output shaft of the first driving motor is fixedly connected to the bottom end of the rotating rod.

[0012] Preferably, a fixing frame is fixedly installed on one side inner wall of the concave reflector. One end of the fixing frame is fixedly connected to a beam alignment module.

[0013] Preferably, an array microphone is further included. The array microphone is fixedly installed on one side wall of the beam alignment module.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] The utility model can horizontally rotate and adjust the concave reflector by setting a base, a cavity, a rotating rod, a first drive motor and a rotating part. In addition, by setting an L-shaped frame and a power component, the inclination angle of the concave reflector can be adjusted, so that the concave reflector can be aligned with sounds at different heights directly in front. By setting an L-shaped support plate and a rotating component, the concave reflector that is originally in a tilted state can be rotated and adjusted, thereby further increasing the adjustment range of the concave reflector, and then it can be aligned with sounds in multiple directions around it, which is beneficial to further improve the sound pickup quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the shaft side of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the rotating assembly and the power assembly of the utility model;

[0019] Figure 4 The utility model is a schematic structural diagram of a concave reflector, a fixing frame and a beam alignment module.

[0020] In the figure: 1. base; 2. concave reflector; 3. cavity; 4. rotating rod; 5. first drive motor; 6. rotating member; 7. L-shaped support plate; 8. rotating assembly; 801. rotating rod; 802. third drive motor; 803. turntable; 9. L-shaped frame; 10. power assembly; 1001. worm; 1002. second drive motor; 1003. worm gear; 1004. rotating shaft; 1005. connecting rod; 1006. mounting plate; 11. rotating seat; 12. fixing frame; 13. beam alignment module; 14. array microphone. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 , the utility model provides a technical solution:

[0023] A sound focusing pickup device, comprising a base 1 and a concave reflector 2. A cavity 3 is arranged inside the base 1. A rotating rod 4 is rotatably installed at the top of the base 1. The bottom end of the rotating rod 4 penetrates through the base 1 and is connected with a first driving motor 5. The top end of the rotating rod 4 is fixedly connected with a rotating member 6. The top of the rotating member 6 is fixedly connected with an L-shaped support plate 7. A rotating assembly 8 for rotating the concave reflector 2 is arranged on one side of the L-shaped support plate 7. A power assembly 10 for adjusting the tilt angle of the concave reflector 2 is arranged on the inner wall of the C-shaped frame 9. The concave reflector 2 is connected to the adjusting end of the power assembly 10. The utility model can adjust the concave reflector 2 in a large range of angles, so that the concave reflector 2 can be aligned with sounds in multiple surrounding directions, which is beneficial to further improving the pickup quality;

[0024] The power assembly 10 includes a worm 1001. The top end and the bottom end of the worm 1001 are respectively rotatably installed on the inner top and the inner bottom of the C-shaped frame 9. The top end of the worm 1001 penetrates through the C-shaped frame 9 and is connected with a second driving motor 1002. A worm gear 1003 is meshed on one side of the worm 1001. A rotating shaft 1004 is fixedly inserted inside the worm gear 1003. Two groups of connecting rods 1005 are symmetrically and fixedly connected to the outer wall of the rotating shaft 1004. One ends of the two groups of connecting rods 1005 are fixedly connected with a mounting plate 1006. The concave reflector 2 is fixedly installed on one side wall of the mounting plate 1006. The mounting plate 1006 serves as the adjusting end of the power assembly 10;

[0025] Specifically, the output shaft of the second driving motor 1002 can drive the worm 1001 to rotate, thereby driving the worm gear 1003 to rotate, and then driving the rotating shaft 1004 to rotate, so that the two groups of connecting rods 1005 can swing, and the tilt angle (elevation angle) of the concave reflector 2 can be adjusted through the mounting plate 1006, and the concave reflector can be aligned with sounds at different heights directly in front;

[0026] Two groups of rotating seats 11 are symmetrically and fixedly installed on one side inner wall of the C-shaped frame 9. The two ends of the rotating shaft 1004 are respectively rotatably installed on the opposite side walls of the two groups of rotating seats 11. By arranging the rotating seats 11, the rotating shaft 1004 is supported and positioned;

[0027] The rotating assembly 8 includes a rotating rod 801. One end of the rotating rod 801 is rotatably installed on one side wall of the L-shaped support plate 7. One end of the rotating rod 801 penetrates through the L-shaped support plate 7 and is connected with a third driving motor 802. The other end of the rotating rod 801 is fixedly connected with a turntable 803. The C-shaped frame 9 is fixedly installed on one side wall of the turntable 803. The turntable 803 serves as the rotating end of the rotating assembly 8;

[0028] Specifically, the output shaft of the third driving motor 802 can drive the rotating rod 801 to rotate, thereby driving the turntable 803 to rotate, so that the concave reflector 2 that is originally in a tilted state can be rotated and adjusted, thereby further increasing the adjustment range of the concave reflector 2, and then it can be aligned with the sounds in multiple directions around it, which is conducive to further improving the sound pickup quality;

[0029] The first drive motor 5 is fixedly installed at the inner bottom of the cavity 3, one end of the output shaft of the first drive motor 5 is fixedly connected to the bottom end of the rotating rod 4, and the first drive motor 5, the second drive motor 1002 and the third drive motor 802 are all configured as forward and reverse stepping motors;

[0030] A fixing frame 12 is fixedly installed on the inner wall of one side of the concave reflector 2, and one end of the fixing frame 12 is fixedly connected to a beam alignment module 13, and also includes an array microphone 14, which is fixedly installed on one side wall of the beam alignment module 13. A control module (not shown in the figure) is also arranged inside the cavity. The first drive motor 5, the second drive motor 1002, the third drive motor 802, the beam alignment module 13 and the array microphone 14 are all electrically connected to the control module through wires. By setting the beam alignment module 13, the direction of the sound can be checked, thereby automatically adjusting the position of the concave reflector 2 so that the concave reflector 2 is aligned with the direction of the sound, and then the sound is picked up by the array microphone 14.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sound focusing pickup device, comprising a base (1) and a concave reflector (2), characterized in that: A cavity (3) is arranged inside the base (1). A rotating rod (4) is rotatably installed at the top of the base (1). The bottom end of the rotating rod (4) penetrates through the base (1) and is connected to a first driving motor (5). The top end of the rotating rod (4) is fixedly connected to a rotating member (6). The top of the rotating member (6) is fixedly connected to an L-shaped support plate (7). A rotating assembly (8) for rotating the concave reflector (2) is arranged on one side of the L-shaped support plate (7). A U-shaped frame (9) is arranged at the rotating end of the rotating assembly (8). A power assembly (10) for adjusting the inclination angle of the concave reflector (2) is arranged on the inner wall of the U-shaped frame (9). The concave reflector (2) is connected to the adjusting end of the power assembly (10).

2. The sound focusing pickup device according to claim 1, characterized in that: The power assembly (10) includes a worm (1001). The top end and the bottom end of the worm (1001) are respectively rotatably installed at the inner top and the inner bottom of the U-shaped frame (9). The top end of the worm (1001) penetrates through the U-shaped frame (9) and is connected to a second driving motor (1002). A worm gear (1003) is meshed with one side of the worm (1001). A rotating shaft (1004) is fixedly inserted inside the worm gear (1003). Two groups of connecting rods (1005) are symmetrically and fixedly connected to the outer wall of the rotating shaft (1004). One ends of the two groups of connecting rods (1005) are fixedly connected to a mounting plate (1006). The concave reflector (2) is fixedly installed on one side wall of the mounting plate (1006).

3. The sound focusing pickup device according to claim 2, characterized in that: Two groups of rotating seats (11) are symmetrically and fixedly installed on one side inner wall of the U-shaped frame (9). The two ends of the rotating shaft (1004) are respectively rotatably installed on the opposite side walls of the two groups of rotating seats (11).

4. The sound focusing pickup device according to claim 1, characterized in that: The rotating assembly (8) includes a rotating rod (801). One end of the rotating rod (801) is rotatably installed on one side wall of the L-shaped support plate (7). One end of the rotating rod (801) penetrates through the L-shaped support plate (7) and is connected to a third driving motor (802). The other end of the rotating rod (801) is fixedly connected to a turntable (803). The U-shaped frame (9) is fixedly installed on one side wall of the turntable (803).

5. The sound focusing pickup device according to claim 1, characterized in that: The first driving motor (5) is fixedly installed at the inner bottom of the cavity (3). One end of the output shaft of the first driving motor (5) is fixedly connected to the bottom end of the rotating rod (4).

6. The sound focusing pickup device according to claim 1, characterized in that: A fixing frame (12) is fixedly installed on one side inner wall of the concave reflector (2). One end of the fixing frame (12) is fixedly connected to a beam alignment module (13).

7. The sound focusing pickup device according to claim 6, characterized in that: An array microphone (14) is further included. The array microphone (14) is fixedly installed on one side wall of the beam alignment module (13).

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