Sound signal acquisition device

Abstract

The utility model belongs to the technical field of sound signal acquisition devices, and particularly relates to a sound signal acquisition device which comprises a sound signal acquisition device body and further comprises a fixing ring, the fixing ring is fixedly connected to the peripheral side of a conical sound receiving cover on the sound signal acquisition device body, and a dustproof net is fixedly connected in the fixing ring. The dustproof net is attached to the bottom face of a conical sound receiving cover on the sound signal collecting device body, the bottom face of the fixing ring is rotationally connected with a rotating block, an inserting groove communicated with the outside is formed in the rotating block, a sweeping plate is inserted into the inserting groove, and the top face of the sweeping plate is attached to the fixing ring. The fixing assembly is located in the rotating block and used for fixing the sweeping plate; and the fixed plate is fixedly connected to the bottom surface of the sound signal acquisition device body, so that the problem that when a large amount of dust is attached to the surface of the sound pickup, the dust may block a sound transmission hole of the sound pickup, so that sound signals are blocked in the transmission process, and the sound quality of the sound pickup is affected is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sound signal acquisition devices, and particularly relates to a sound signal acquisition device. Background Art

[0002] A sound signal acquisition device is a device used to obtain sound signals and convert them into a form that can be processed or transmitted. The core of this device lies in sound sensing technology, that is, converting the mechanical energy of sound into an electrical signal.

[0003] For example, a Chinese patent with the publication number CN214206796U discloses a sound signal acquisition device for pigs, including a device bracket, a device housing, a thermal imaging camera, and a microphone; a controller, a wireless communication module, a memory, a data collector, and a pitch drive circuit are arranged in the device housing. This sound signal acquisition device for pigs can collect sound signals at the installation position in the pigsty by using the data collector and the microphone, and the microprocessor sends them to a remote monitoring center through the wireless communication module for data processing, so as to timely detect whether there is an abnormality in the pigs; the thermal imaging camera can collect infrared data of the pigs in the pigsty, so as to timely judge whether the pigs have a fever symptom after being sent to the monitoring center; the installation cooperation of the spherical hinge head and the spherical hinge seat can facilitate adjusting the orientation of the conical sound collecting cover during installation, so as to ensure the sound collection effect of the microphone.

[0004] The above patent has the following problems:

[0005] This patent has some disadvantages in use. For example, during the long-term use of the above-mentioned sound signal acquisition device for pigs, external dust will gradually accumulate and adhere to the surface of the microphone. When a large amount of dust adheres to the surface of the microphone, the dust may block the sound transmission holes of the microphone, resulting in obstacles in the transmission process of the sound signal, and thus affecting the sound quality of the microphone. In view of this, we propose a sound signal acquisition device. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a sound signal acquisition device to solve the problems raised in the above background art.

[0007] In view of this, the utility model provides a sound signal acquisition device, including a sound signal acquisition device body, and further including:

[0008] A fixing ring is fixedly connected to the periphery of the conical sound collecting cover on the body of the sound signal collecting device. A dust-proof net is fixedly connected inside the fixing ring, and the dust-proof net is in contact with the bottom surface of the conical sound collecting cover on the body of the sound signal collecting device. A rotating block is rotatably connected to the bottom surface of the fixing ring. A slot communicating with the outside is formed in the rotating block, and a cleaning plate is inserted into the slot, and the top surface of the cleaning plate is in contact with the fixing ring;

[0009] A fixing component is located inside the rotating block and is used to fix the cleaning plate;

[0010] A fixing plate is fixedly connected to the bottom surface of the body of the sound signal collecting device. A transmission rod is rotatably connected to the bottom surface of the fixing plate, and one end of the transmission rod is fixedly connected to the top end of the rotating block;

[0011] A driving component is located inside the fixing plate and is used to drive the transmission rod to rotate.

[0012] Based on the above structure, by setting the dust-proof net, it is ensured that the dust-proof net can prevent external dust from entering the surface of the pickup inside the body of the sound signal collecting device. By setting the fixing ring, the rotating block and the cleaning plate, it is ensured that the rotating block can rotate on the bottom surface of the fixing ring and drive the cleaning plate to rotate, so that the cleaning plate can clean the dust attached to the dust-proof net. By setting the driving component and the transmission rod, it is ensured that the user can drive the rotating block to rotate through the driving component and the transmission rod. By setting the slot and the cleaning plate, it is ensured that one end of the cleaning plate can be inserted into the slot, and it is ensured that when the cleaning plate is damaged during long-term use, the user can replace the cleaning plate. By setting the fixing component, it is ensured that the user can fix one end of the cleaning plate inside the rotating block and prevent it from moving.

[0013] In the above technical solution, further, the fixing component includes:

[0014] Two first chutes are formed in the cleaning plate and communicate with the slot. Two inserting rods are respectively slidably connected in the two first chutes, and one end of each of the two inserting rods extends to the inner wall of the slot and is inserted and matched with the slot. The other end of the inserting rod is fixedly connected to a spring fixed to the inner wall of the first chute, and an extrusion groove is formed on the inserting rod;

[0015] A second chute is formed on one side of the cleaning plate and communicates with the two first chutes. An extrusion block is slidably connected in the second chute, and both ends of the extrusion block respectively extend into the two extrusion grooves.

[0016] In this technical solution, it is ensured that one end of the cleaning plate can be fixed in the slot and cannot move.

[0017] In the above technical solution, further, both ends of the extrusion block are inclined.

[0018] In this technical solution, it is ensured that both ends of the extrusion block can respectively extrude two extrusion grooves.

[0019] In the above technical solution, further, the driving assembly includes:

[0020] A first rotation groove, which is opened in the fixed plate. A gear is rotatably connected in the first rotation groove, and the bottom end of the gear penetrates through the inner wall of the first rotation groove and extends into the fixed plate to be fixed to the top end of the transmission rod;

[0021] Two second rotation grooves, which are symmetrically opened in the fixed plate and communicate with the first rotation groove. Two incomplete gears are respectively rotatably connected in the two second rotation grooves, and one of the incomplete gears meshes with the gear;

[0022] An activity groove, which is opened in the fixed plate and communicates with the two second rotation grooves. Two sprockets are rotatably connected in the activity groove, and one end of each of the two sprockets penetrates through the inner wall of the activity groove and extends into the two second rotation grooves respectively to be fixed to the two incomplete gears. A chain is meshed between the two sprockets;

[0023] A third rotation groove, which is opened in the fixed plate and communicates with the activity groove. A fourth rotation groove communicating with the outside is opened on the inner wall of the third rotation groove. A worm gear is rotatably connected in the third rotation groove, and the bottom end of the worm gear penetrates through the third rotation groove and extends into the activity groove to be fixed to one of the sprockets. A worm meshing with the worm gear is rotatably connected to the fourth rotation groove on one side of the worm gear;

[0024] A motor, which is fixedly connected to one side of the fixed plate, and the output shaft of the motor penetrates through one side of the fixed plate and extends into the fourth rotation groove to be fixed to the worm.

[0025] In this technical solution, it is ensured that the gear can drive the transmission rod to rotate reciprocally.

[0026] In the above technical solution, further, the bottom end of the gear is rotatably connected to the fixed plate, and the bottom end of the sprocket is rotatably connected to the second rotation groove.

[0027] In this technical solution, it is ensured that the bottom end of the gear can rotate normally in the fixed plate, and the bottom end of the sprocket can rotate normally in the second rotation groove.

[0028] In the above technical solution, further, the bottom end of the worm gear is rotatably connected to the activity groove.

[0029] In this technical solution, it is ensured that the bottom end of the worm gear can rotate normally in the activity groove.

[0030] In the above technical solution, further, the output shaft of the motor is rotatably connected to the fixing plate.

[0031] In this technical solution, it is ensured that the output shaft of the motor can rotate normally within the fixing plate.

[0032] The beneficial effects of the present utility model are as follows:

[0033] 1. For this sound signal acquisition device, through the provided dust-proof net, it is ensured that the dust-proof net can prevent external dust from entering the surface of the pickup inside the sound signal acquisition device body. Through the provided fixing ring, rotating block and cleaning plate, it is ensured that the rotating block can rotate on the bottom surface of the fixing ring and drive the cleaning plate to rotate, so that the cleaning plate can clean the dust attached to the dust-proof net. Through the provided driving component and transmission rod, it is ensured that the user can drive the rotating block to rotate through the driving component and transmission rod, solving the problem that when a large amount of dust adheres to the surface of the pickup, the dust may block the sound transmission holes of the pickup, resulting in obstacles in the sound signal transmission process and thus affecting the sound quality of the pickup.

[0034] 2. For this sound signal acquisition device, through the provided slot and cleaning plate, it is ensured that one end of the cleaning plate can be inserted into the slot, and it is ensured that when the cleaning plate is damaged during long-term use, the user can replace the cleaning plate. Through the provided fixing component, it is ensured that the user can fix one end of the cleaning plate within the rotating block and prevent it from moving. Description of the Drawings

[0035] Figure 1 is the overall structural schematic diagram of the present utility model;

[0036] Figure 2 is one of the internal structural schematic diagrams of the cleaning plate of the present utility model;

[0037] Figure 3 is another internal structural schematic diagram of the cleaning plate of the present utility model;

[0038] Figure 4 is one of the internal structural schematic diagrams of the fixing plate of the present utility model;

[0039] Figure 5 is another internal structural schematic diagram of the fixing plate of the present utility model;

[0040] Figure 6 is the third internal structural schematic diagram of the fixing plate of the present utility model.

[0041] The marks in the figures are shown as:

[0042] 1. Sound signal acquisition device body; 2. Fixed ring; 3. Dust-proof net; 4. Rotating block; 5. Slot; 6. Cleaning plate; 7. Fixed plate; 8. Transmission rod; 9. First chute; 10. Plug rod; 11. Spring; 12. Extrusion groove; 13. Second chute; 14. Extrusion block; 15. First rotation groove; 16. Gear; 17. Second rotation groove; 18. Incomplete gear; 19. Activity groove; 20. Sprocket; 21. Chain; 22. Third rotation groove; 23. Fourth rotation groove; 24. Worm gear; 25. Worm; 26. Motor. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0044] In the description of the present application, it should be noted that the terms used here are only for describing specific implementation manners, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0045] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are usually of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0046] It should be noted that in the description of the present application, the orientation or positional relationships indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationships shown in the drawings. This is only for the convenience of describing the present application and simplifying the description. Without contrary explanations, these directional terms do not indicate or imply that the devices or components referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present application; the directional terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0047] It should be noted that in the present application, the term "comprising", "including" or any other variants thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitations, the element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0048] Embodiment 1:

[0049] Please refer to Figure 1 - Figure 6 As shown, this embodiment provides a sound signal acquisition device, including a sound signal acquisition device body 1, and further including:

[0050] A fixing ring 2 is fixedly connected to the periphery of the conical sound collecting cover on the sound signal acquisition device body 1. A dust-proof net 3 is fixedly connected inside the fixing ring 2, and the dust-proof net 3 is in contact with the bottom surface of the conical sound collecting cover on the sound signal acquisition device body 1. A rotating block 4 is rotatably connected to the bottom surface of the fixing ring 2. A slot 5 communicating with the outside is opened inside the rotating block 4. A cleaning plate 6 is inserted into the slot 5, and the top surface of the cleaning plate 6 is in contact with the fixing ring 2;

[0051] A fixing component is located inside the rotating block 4 and is used to fix the cleaning plate 6;

[0052] A fixing plate 7 is fixedly connected to the bottom surface of the sound signal acquisition device body 1. A transmission rod 8 is rotatably connected to the bottom surface of the fixing plate 7, and one end of the transmission rod 8 is fixedly connected to the top end of the rotating block 4;

[0053] A driving component, which is located inside the fixing plate 7 and is used to drive the transmission rod 8 to rotate.

[0054] Embodiment 2:

[0055] This embodiment provides a sound signal acquisition device. In addition to including the technical solutions of the above embodiment, it also has the following technical features. The fixing component includes:

[0056] Two first sliding grooves 9 are opened in the cleaning plate 6 and communicate with the slot 5. Two inserting rods 10 are respectively slidably connected in the two first sliding grooves 9. One end of each of the two inserting rods 10 extends to the inner wall of the slot 5 and is inserted and matched with the slot 5. The other end of the inserting rod 10 is fixedly connected to a spring 11 fixed to the inner wall of the first sliding groove 9. An extrusion groove 12 is formed in the inserting rod 10;

[0057] A second sliding groove 13 is opened on one side of the cleaning plate 6 and communicates with the two first sliding grooves 9. An extrusion block 14 is slidably connected in the second sliding groove 13, and both ends of the extrusion block 14 respectively extend into the two extrusion grooves 12.

[0058] Among them, when the cleaning plate 6 is worn during long-term use and it is difficult to clean the dust, the user slides the extrusion block 14 by hand, so that both ends of the extrusion block 14 respectively extrude the two extrusion grooves 12, so that one end of each of the two inserting rods 10 enters the two first sliding grooves 9 respectively from the inner wall of the slot 5 and compresses the two springs 11 respectively. At this time, the fixing of the cleaning plate 6 is released. Subsequently, the user can pull out one end of the cleaning plate 6 from the slot 5 for replacement. After the replacement is completed, the user slides the extrusion block 14 in the replaced cleaning plate 6 by hand, so that both ends of the extrusion block 14 respectively extrude the two extrusion grooves 12, so that one end of each of the two inserting rods 10 enters the two first sliding grooves 9 respectively from the outside and compresses the two springs 11 respectively. Subsequently, the user inserts one end of the replaced cleaning plate 6 into the slot 5 by hand and releases the hand sliding the extrusion block 14, so that one end of each of the two inserting rods 10 is inserted into the inner wall of the slot 5 under the action of the rebounding force of the two springs 11 respectively, ensuring that one end of the cleaning plate 6 can be fixed in the slot 5 and cannot move.

[0059] Embodiment 3:

[0060] This embodiment provides a sound signal acquisition device. In addition to including the technical solutions of the above embodiment, it also has the following technical features. Both ends of the extrusion block 14 are inclined.

[0061] Among them, it is ensured that both ends of the extrusion block 14 can respectively extrude the two extrusion grooves 12.

[0062] Embodiment 4:

[0063] This embodiment provides a sound signal acquisition device. In addition to including the technical solutions of the above embodiment, it also has the following technical features. The driving component includes:

[0064] A first rotating groove 15 is opened in the fixing plate 7. A gear 16 is rotatably connected in the first rotating groove 15, and the bottom end of the gear 16 penetrates through the inner wall of the first rotating groove 15 and extends into the fixing plate 7 to be fixed to the top end of the transmission rod 8;

[0065] Two second rotating grooves 17 are symmetrically opened in the fixing plate 7 and communicate with the first rotating groove 15. Two incomplete gears 18 are respectively rotatably connected in the two second rotating grooves 17, and one of the incomplete gears 18 meshes with the gear 16;

[0066] An activity groove 19 is opened in the fixing plate 7 and communicates with the two second rotating grooves 17. Two sprockets 20 are rotatably connected in the activity groove 19, and one end of each of the two sprockets 20 penetrates through the inner wall of the activity groove 19 and extends into the two second rotating grooves 17 to be fixed to the two incomplete gears 18 respectively. A chain 21 is meshed between the two sprockets 20;

[0067] A third rotating groove 22 is opened in the fixing plate 7 and communicates with the activity groove 19. A fourth rotating groove 23 communicating with the outside is opened on the inner wall of the third rotating groove 22. A worm gear 24 is rotatably connected in the third rotating groove 22, and the bottom end of the worm gear 24 penetrates through the third rotating groove 22 and extends into the activity groove 19 to be fixed to one of the sprockets 20. A worm 25 rotatable in the fourth rotating groove 23 meshes with one side of the worm gear 24;

[0068] A motor 26 is fixedly connected to one side of the fixing plate 7, and the output shaft of the motor 26 penetrates through one side of the fixing plate 7 and extends into the fourth rotating groove 23 to be fixed to the worm 25.

[0069] Among them, when in use, the user starts the motor 26, and the output shaft of the motor 26 drives the worm 25 to rotate in the fourth rotation groove 23, so that the worm 25 drives the worm wheel 24 to rotate in the third rotation groove 22, and the worm wheel 24 drives one of the sprockets 20 to rotate in the movable groove 19. When one of the sprockets 20 rotates, one of the sprockets 20 drives the other sprocket 20 to rotate through the chain 21. When the two sprockets 20 rotate, the two sprockets 20 respectively drive the two incomplete gears 18 to rotate in the two second rotation grooves 17. When one of the incomplete gears 18 rotates, one of the incomplete gears 18 drives the gear 16 to rotate forward. When the gear 16 rotates to a suitable position, one of the incomplete gears 18 no longer meshes with the gear 16. At the same time, the other incomplete gear 18 meshes with the gear 16. When the other incomplete gear 18 meshes, the other incomplete gear 18 drives the gear 16 to rotate in the reverse direction, ensuring that the gear 16 can drive the transmission rod 8 to rotate reciprocally.

[0070] Embodiment 5:

[0071] This embodiment provides a sound signal acquisition device. In addition to including the technical solutions of the above embodiments, it also has the following technical features: the bottom end of the gear 16 is rotatably connected to the fixed plate 7, and the bottom end of the sprocket 20 is rotatably connected to the second rotation groove 17.

[0072] Among them, it is ensured that the bottom end of the gear 16 can rotate normally within the fixed plate 7, and it is ensured that the bottom end of the sprocket 20 can rotate normally within the second rotation groove 17.

[0073] Embodiment 6:

[0074] This embodiment provides a sound signal acquisition device. In addition to including the technical solutions of the above embodiments, it also has the following technical features: the bottom end of the worm wheel 24 is rotatably connected to the movable groove 19.

[0075] Among them, it is ensured that the bottom end of the worm wheel 24 can rotate normally within the movable groove 19.

[0076] Embodiment 7:

[0077] This embodiment provides a sound signal acquisition device. In addition to including the technical solutions of the above embodiments, it also has the following technical features: the output shaft of the motor 26 is rotatably connected to the fixed plate 7.

[0078] Among them, it is ensured that the output shaft of the motor 26 can rotate normally within the fixed plate 7.

[0079] During use, the dust-proof net 3 will block the dust from the outside world. When the dust-proof net 3 has dust attached to its surface during long-term use, the user starts the motor 26, and the output shaft of the motor 26 drives the worm 25 to rotate in the fourth rotation groove 23, so that the worm 25 drives the worm wheel 24 to rotate in the third rotation groove 22, and the worm wheel 24 drives one of the sprockets 20 to rotate in the movable groove 19. When one of the sprockets 20 rotates, one of the sprockets 20 drives the other sprocket 20 to rotate through the chain 21. When the two sprockets 20 rotate, the two sprockets 20 respectively drive the two incomplete gears 18 to rotate in the two second rotation grooves 17. When one of the incomplete gears 18 rotates, one of the incomplete gears 18 drives the gear 16 to rotate forward. When the gear 16 rotates to a suitable position, one of the incomplete gears 18 no longer meshes with the gear 16. At the same time, the other incomplete gear 18 meshes with the gear 16. When the other incomplete gear 18 meshes, the other incomplete gear 18 drives the gear 16 to rotate in the reverse direction, ensuring that the gear 16 can drive the transmission rod 8 to rotate reciprocally. When the transmission rod 8 rotates reciprocally, the transmission rod 8 drives the rotating block 4 to rotate reciprocally on the bottom surface of the fixed ring 2. When the rotating block 4 rotates reciprocally, the rotating block 4 drives the cleaning plate 6 to rotate reciprocally, so that the cleaning plate 6 cleans the dust on the surface of the dust-proof net 3. When the cleaning plate 6 is worn and difficult to clean the dust during long-term use, the user slides the extrusion block 14 by hand, so that the two ends of the extrusion block 14 respectively extrude the two extrusion grooves 12, and one end of each of the two insertion rods 10 enters the two first sliding grooves 9 from the inner wall of the insertion slot 5 respectively, and respectively compresses the two springs 11. At this time, the fixation of the cleaning plate 6 is released. Then the user can pull out one end of the cleaning plate 6 from the insertion slot 5 for replacement. After replacement, the user slides the extrusion block 14 in the replaced cleaning plate 6 by hand, so that the two ends of the extrusion block 14 respectively extrude the two extrusion grooves 12, and one end of each of the two insertion rods 10 enters the two first sliding grooves 9 from the outside respectively, and respectively compresses the two springs 11. Then the user inserts one end of the replaced cleaning plate 6 into the insertion slot 5 by hand and releases the hand sliding the extrusion block 14, so that one end of each of the two insertion rods 10 is inserted into the inner wall of the insertion slot 5 under the action of the rebounding force of the two springs 11, ensuring that one end of the cleaning plate 6 can be fixed in the insertion slot 5 and cannot move.

[0080] The embodiments of the present application are described above in conjunction with the accompanying drawings. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection scope of the present application.

Claims

1. A sound signal acquisition device, comprising a sound signal acquisition device body (1), characterized in that, Further included are: A fixing ring (2) fixedly connected to the periphery of the conical sound collecting cover on the main body (1) of the sound signal collecting device. A dust-proof net (3) is fixedly connected inside the fixing ring (2), and the dust-proof net (3) is in contact with the bottom surface of the conical sound collecting cover on the main body (1) of the sound signal collecting device. The bottom surface of the fixing ring (2) is rotatably connected to a rotating block (4). A slot (5) communicating with the outside is formed in the rotating block (4). A cleaning plate (6) is inserted into the slot (5), and the top surface of the cleaning plate (6) is in contact with the fixing ring (2); A fixing component located inside the rotating block (4) and used for fixing the cleaning plate (6); A fixing plate (7) fixedly connected to the bottom surface of the main body (1) of the sound signal collecting device. The bottom surface of the fixing plate (7) is rotatably connected to a transmission rod (8), and one end of the transmission rod (8) is fixed to the top end of the rotating block (4); A driving component located inside the fixing plate (7) and used for driving the transmission rod (8) to rotate.

2. The voice signal acquisition device according to claim 1, characterized in that The fixing component includes: Two first sliding grooves (9) formed in the cleaning plate (6) and communicating with the slot (5). Two inserting rods (10) are respectively slidably connected in the two first sliding grooves (9). One end of each of the two inserting rods (10) extends to the inner wall of the slot (5) and is in insertion fit with the slot (5). The other end of the inserting rod (10) is fixedly connected to a spring (11) fixed to the inner wall of the first sliding groove (9). An extrusion groove (12) is formed in the inserting rod (10); A second sliding groove (13) formed on one side of the cleaning plate (6) and communicating with the two first sliding grooves (9). A squeezing block (14) is slidably connected in the second sliding groove (13), and both ends of the squeezing block (14) respectively extend into the two extrusion grooves (12).

3. The voice signal acquisition device according to claim 2, wherein, Both ends of the squeezing block (14) are inclined.

4. A sound signal acquisition device according to claim 1, characterized in that, The driving component includes: A first rotating groove (15) formed in the fixing plate (7). A gear (16) is rotatably connected in the first rotating groove (15). The bottom end of the gear (16) penetrates through the inner wall of the first rotating groove (15) and extends into the fixing plate (7) to be fixed to the top end of the transmission rod (8); Two second rotating grooves (17) symmetrically formed in the fixing plate (7) and communicating with the first rotating groove (15). Two incomplete gears (18) are respectively rotatably connected in the two second rotating grooves (17), and one of the incomplete gears (18) meshes with the gear (16); An activity groove (19) formed in the fixing plate (7) and communicating with the two second rotating grooves (17). Two chain wheels (20) are rotatably connected in the activity groove (19). One end of each of the two chain wheels (20) penetrates through the inner wall of the activity groove (19) and extends into the two second rotating grooves (17) respectively to be fixed to the two incomplete gears (18). A chain (21) meshes between the two chain wheels (20); A third rotating groove (22) is provided. The third rotating groove (22) is formed in the fixed plate (7) and communicates with the movable groove (19). A fourth rotating groove (23) communicating with the outside is formed on the inner wall of the third rotating groove (22). A worm gear (24) is rotatably connected in the third rotating groove (22). The bottom end of the worm gear (24) penetrates through the third rotating groove (22) and extends into the movable groove (19) to be fixed to one of the sprockets (20). A worm (25) meshing with one side of the worm gear (24) is rotatably connected to the fourth rotating groove (23). A motor (26) is fixedly connected to one side of the fixed plate (7). The output shaft of the motor (26) penetrates through one side of the fixed plate (7) and extends into the fourth rotating groove (23) to be fixed to the worm (25).

5. A sound signal acquisition device according to claim 4, characterized in that, The bottom end of the gear (16) is rotatably connected to the fixed plate (7). The bottom end of the sprocket (20) is rotatably connected to the second rotating groove (17).

6. The voice signal acquisition device according to claim 4, characterized in that The bottom end of the worm gear (24) is rotatably connected to the movable groove (19).

7. The voice signal acquisition device according to claim 4, wherein The output shaft of the motor (26) is rotatably connected to the fixed plate (7).

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