Loudspeaker displacement laser detection equipment with good protection function

Abstract

The invention relates to the technical field of detection equipment, in particular to loudspeaker displacement laser detection equipment with a good protection function, and the loudspeaker displacement laser detection equipment comprises a base, a laser displacement sensor movably mounted on the base, a fixing assembly, a driving assembly, a protection assembly and a transmission assembly. The driving assembly drives the laser displacement sensor to be close to or away from the fixing assembly, the laser displacement sensor is protected through the protection assembly, and the driving assembly synchronously drives the fixing assembly to operate through the transmission assembly. According to the invention, when the loudspeaker needing to be detected is placed, the laser displacement sensor can be far away from the fixed position (namely the middle of the two clamping parts) of the loudspeaker through the driving assembly, so that the possibility that the laser displacement sensor is collided when a new loudspeaker to be detected is placed can be greatly reduced, and good protection of the laser displacement sensor is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and in particular to a loudspeaker displacement laser detection equipment with good protection function. Background Art

[0002] After the speaker is manufactured, it needs to be tested. One of the tests is to test the mechanical vibration of the speaker cone. The current conventional testing method is to use displacement laser testing equipment.

[0003] When using the existing speaker laser displacement detection device, the laser displacement sensor is installed at a specified position with the laser emitting end facing the speaker's cone (also called diaphragm or sound cone). Under this structure, when testing speakers of the same size, the laser displacement sensor is generally fixed at a constant position, and then continuous testing can be achieved by constantly replacing different speakers.

[0004] However, the above detection equipment still has certain defects:

[0005] Laser displacement sensors with constant positions are generally not too far away from the speakers to avoid increasing measurement errors due to excessive distance. However, most laser displacement sensors are installed directly and exposedly. As a result, when replacing other speakers that need to be tested or performing other maintenance work, the laser displacement sensors are easily bumped and damaged. Overall, the protection capability is poor. Summary of the invention

[0006] In order to overcome the deficiencies of the prior art, the present invention provides a loudspeaker displacement laser detection device with good protection function.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a speaker displacement laser detection device with good protection function, comprising: a base, the base is in the shape of a flat plate; a laser displacement sensor, the laser displacement sensor is movably installed above the base, and the sensing end is facing the base; a fixing component, the fixing component includes two clamping parts, the two clamping parts have the same structure and are symmetrically arranged, the two clamping parts are slidably installed on the base, and the two clamping parts can only slide towards or away from each other, and the two clamping parts can clamp the speaker at the same time; a driving component, the driving component is connected to the laser displacement sensor, and the laser displacement sensor can be driven by the driving component to approach or move away from the middle of the two clamping parts; a protection component The protective component includes a protective cover, which is movably arranged on the base, and when the sensing end of the laser displacement sensor moves toward the middle of the two clamping parts, the protective cover moves away from the laser displacement sensor and exposes it, and when the sensing end of the laser displacement sensor moves away from the middle of the two clamping parts, the protective cover approaches the laser displacement sensor and covers the surface of the sensor; a transmission component, the transmission component is connected between the driving component and the two clamping parts, and when the sensing end of the laser displacement sensor approaches the middle of the two clamping parts, the driving component can drive the two clamping parts to move closer to each other through the transmission component, and when the sensing end of the laser displacement sensor moves away from the middle of the two clamping parts, the driving component can drive the two clamping parts to move away from each other through the transmission component.

[0008] As a preferred technical solution of the present invention, the fixing assembly also includes a guide rail, which is fixedly mounted on the base, and the clamping part includes a first clamping seat, a second clamping seat, a first clamping plate and a second clamping plate. The first clamping seat is slidably mounted on the guide rail, the second clamping seat is slidably mounted above the first clamping seat, the first clamping plate is slidably mounted on the side of the first clamping seat, and the second clamping plate is slidably mounted on the side of the second clamping seat.

[0009] As a preferred technical solution of the present invention, a first flexible pad is fixedly installed on the side of the first clamping plate, and a second flexible pad is fixedly installed on the side of the second clamping plate. The first clamping plate and the second clamping plate are arranged on the same side of the first clamping seat, and the first clamping plate and the second clamping plate of the two clamping parts are symmetrically arranged, and the two first flexible pads and the second flexible pads are also symmetrically arranged.

[0010] As a preferred technical solution of the present invention, the clamping part also includes a first screw, a first guide rod, a second screw, a second guide rod and a third screw. The first screw is threadedly penetrated in the middle of the first clamping seat, and the first screw is rotatably connected to the first clamping plate. The first guide rod is slidably penetrated in the middle of the first clamping seat, and the end of the first guide rod is fixedly connected to the first clamping plate. The second screw is threadedly penetrated in the middle of the second clamping seat, and the second screw is rotatably connected to the second clamping plate. The second guide rod is slidably penetrated in the middle of the second clamping seat, and the end of the second guide rod is fixedly connected to the second clamping plate. The third screw is threadedly penetrated in the middle of the second clamping seat, and the number of the third screws is greater than or equal to two, and the end of the third screw is threadedly connected to the first clamping seat.

[0011] As a preferred technical solution of the present invention, the driving assembly includes a driving rod, a cylinder, a connecting plate and a first connecting rod. The driving rod is rotatably mounted on the base, a frame rod is fixedly mounted on the surface of the driving rod, a laser displacement sensor is fixedly mounted on the frame rod, the cylinder is fixedly mounted on the base, the connecting plate is fixedly mounted on the movable end of the cylinder, one end of the first connecting rod is rotatably connected to the driving rod, and the other end is rotatably connected to the end of the connecting plate away from the cylinder.

[0012] As a preferred technical solution of the present invention, the protective component also includes a sliding rod, a sliding sleeve and a linkage component. The sliding rod is fixedly installed on the frame rod, the sliding sleeve is fixedly installed on the protective cover, and the sliding sleeve is arranged on the sliding rod. At the same time, the sliding sleeve can only slide along the axial direction of the sliding rod. The linkage component is connected between the protective cover and the base, and the sliding sleeve is driven to slide through the linkage component. At the same time, when the driving rod rotates, the linkage component can be driven to operate synchronously.

[0013] As a preferred technical solution of the present invention, the linkage assembly includes a first linkage rod and a second linkage rod, one end of the first linkage rod is rotatably mounted on the base, and the rotation center of the first linkage rod on the base is staggered with the rotation center of the driving rod on the base, the second linkage rod is fixedly mounted at the end of the first linkage rod away from the base, and the second linkage rod is rotatably connected to the protective cover.

[0014] As a preferred technical solution of the present invention, the transmission assembly includes a second connecting rod, a screw rod, a first connecting seat, a second connecting seat and a third connecting rod. The first connecting seat and the second connecting seat are both slidably installed above the base. One end of the screw rod is rotatably connected to the first connecting seat, and the other end is threaded through the middle of the second connecting seat. One end of the second connecting rod is rotatably connected to the driving rod, and the other end is rotatably connected to the first connecting seat. There are two third connecting rods, and they are symmetrically arranged. One end of the two third connecting rods is rotatably connected to the two clamping parts respectively, and the other end is rotatably connected to the second connecting seat at the same time.

[0015] As a preferred technical solution of the present invention, a bearing platform is fixedly mounted on the base, and the bearing platform is located between the two clamping parts.

[0016] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0017] 1. During the entire use process, when placing the speaker to be tested, the laser displacement sensor can be kept away from the fixed position of the speaker (i.e., between the two clamping parts) through the driving component, thereby greatly reducing the possibility of bumping into the laser displacement sensor when placing the new speaker to be tested, thereby achieving good protection for the laser displacement sensor.

[0018] 2. During use, when the laser displacement sensor is away from the fixed position of the speaker, it will drive the two clamping parts away from each other through the transmission assembly. This can not only facilitate the placement of the new speaker, but also avoid the accidental collision of the speaker and the laser displacement sensor when the laser displacement sensor is not removed (because the two clamping parts will clamp the speaker), making it more reliable to use.

[0019] 3. During use, the user can adjust the positions of the first clamping plate, the second clamping plate and the second connecting seat. In this way, the entire detection equipment can be adapted to the detection of speakers of various sizes, greatly improving the adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention from a first viewing angle;

[0021] Figure 2 It is a schematic diagram of the second viewing angle structure of the three-dimensional structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the split structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the installation of the speaker of the present invention.

[0024] Wherein: 1. base; 2. laser displacement sensor; 3. protective cover; 4. guide rail; 5. first clamp seat; 6. second clamp seat; 7. first clamp plate; 8. second clamp plate; 9. first flexible pad; 10. second flexible pad; 11. first screw; 12. first guide rod; 13. second screw; 14. second guide rod; 15. third screw; 16. driving rod; 17. cylinder; 18. connecting plate; 19. first connecting rod; 20. frame rod; 21. sliding rod; 22. sliding sleeve; 23. first connecting rod; 24. second connecting rod; 25. second connecting rod; 26. screw; 27. first connecting seat; 28. second connecting seat; 29. ​​third connecting rod; 30. bearing platform. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0026] Embodiment: Figure 1-4 As shown, a speaker displacement laser detection device with good protection function includes:

[0027] A base 1, the base 1 is in a flat plate shape;

[0028] The laser displacement sensor 2 is movably mounted above the base 1, with the sensing end facing the base 1;

[0029] The fixing assembly includes two clamping parts, which have the same structure and are symmetrically arranged. The two clamping parts are slidably mounted on the base 1, and the two clamping parts can only slide toward or away from each other, and the two clamping parts can clamp the speaker at the same time;

[0030] A driving component, which is connected to the laser displacement sensor 2 and can drive the laser displacement sensor 2 to move closer to or farther from the middle of the two clamping parts;

[0031] The protection component includes a protection cover 3, which is movably arranged on the base 1. When the sensing end of the laser displacement sensor 2 moves toward the middle of the two clamping parts, the protection cover 3 moves away from the laser displacement sensor 2 and exposes it. When the sensing end of the laser displacement sensor 2 moves away from the middle of the two clamping parts, the protection cover 3 approaches the laser displacement sensor 2 and covers the surface of the laser displacement sensor 2.

[0032] Transmission assembly, the transmission assembly is connected between the driving assembly and the two clamping parts, and when the sensing end of the laser displacement sensor 2 approaches the middle of the two clamping parts, the driving assembly can drive the two clamping parts to move closer to each other through the transmission assembly, and when the sensing end of the laser displacement sensor 2 moves away from the middle of the two clamping parts, the driving assembly can drive the two clamping parts to move away from each other through the transmission assembly.

[0033] When in use, it is only necessary to use the driving component to drive the laser displacement sensor 2 to move it away from the middle of the two clamping parts. During this process, the protective cover 3 in the protective component will automatically cover the laser displacement sensor 2 to protect it. After a new speaker is replaced in the middle of the two clamping parts, the laser displacement sensor 2 is reset by the driving component. At this time, the protective cover 3 will be separated from the laser displacement sensor 2 again. In addition, during this process, the driving component will also use the transmission component to automatically separate the two clamping parts when the laser displacement sensor 2 is away from the middle of the two clamping parts, and automatically close them synchronously after resetting, thereby facilitating the fixation of the speaker.

[0034] like Figure 1 As shown, the fixing assembly also includes a guide rail 4, which is fixedly mounted on the base 1. The clamping portion includes a first clamping seat 5, a second clamping seat 6, a first clamping plate 7 and a second clamping plate 8. The first clamping seat 5 is slidably mounted on the guide rail 4, the second clamping seat 6 is slidably mounted above the first clamping seat 5, the first clamping plate 7 is slidably mounted on the side of the first clamping seat 5, and the second clamping plate 8 is slidably mounted on the side of the second clamping seat 6.

[0035] In this way, the corresponding clamping part can be driven to slide by only driving the driving component to drive the first clamping seat 5 to slide, and the positions of the first clamping plate 7, the second clamping plate 8 and the second clamping seat 6 can also be adjusted to fix speakers of various sizes.

[0036] like Figure 1 As shown, a first flexible pad 9 is fixedly installed on the side of the first clamping plate 7, and a second flexible pad 10 is fixedly installed on the side of the second clamping plate 8. The first clamping plate 7 and the second clamping plate 8 are arranged on the same side of the first clamping seat 5, and the first clamping plate 7 and the second clamping plate 8 of the two clamping parts are symmetrically arranged, and the two first flexible pads 9 and the second flexible pads 10 are also symmetrically arranged.

[0037] In this way, when the speaker is clamped, damage to the surface of the speaker can be avoided.

[0038] like Figure 1 and Figure 2As shown, the clamping part also includes a first screw 11, a first guide rod 12, a second screw 13, a second guide rod 14 and a third screw 15. The first screw 11 is threadedly penetrated in the middle of the first clamping seat 5, and the first screw 11 is rotatably connected to the first clamping plate 7. The first guide rod 12 is slidably penetrated in the middle of the first clamping seat 5, and the end of the first guide rod 12 is fixedly connected to the first clamping plate 7. The second screw 13 is threadedly penetrated in the middle of the second clamping seat 6, and the second screw 13 is rotatably connected to the second clamping plate 8. The second guide rod 14 is slidably penetrated in the middle of the second clamping seat 6, and the end of the second guide rod 14 is fixedly connected to the second clamping plate 8. The third screw 15 is threadedly penetrated in the middle of the second clamping seat 6, and the number of the third screws 15 is greater than or equal to two, and the end of the third screw 15 is threadedly connected to the first clamping seat 5.

[0039] Thus, the positions of the first clamping plate 7 , the second clamping plate 8 and the second clamping seat 6 can be adjusted respectively by rotating the first screw rod 11 , the second screw rod 13 and the third screw rod 15 respectively.

[0040] like Figure 1 and Figure 2 As shown, the driving assembly includes a driving rod 16, a cylinder 17, a connecting plate 18 and a first connecting rod 19. The driving rod 16 is rotatably mounted on the base 1. A frame rod 20 is fixedly mounted on the surface of the driving rod 16. The laser displacement sensor 2 is fixedly mounted on the frame rod 20. The cylinder 17 is fixedly mounted on the base 1. The connecting plate 18 is fixedly mounted on the movable end of the cylinder 17. One end of the first connecting rod 19 is rotatably connected to the driving rod 16, and the other end is rotatably connected to the end of the connecting plate 18 away from the cylinder 17.

[0041] In this way, it is only necessary to start the cylinder 17. The movable end of the cylinder 17 will extend to drive the end of the first connecting rod 19 to move through the connecting plate 18. The first connecting rod 19 will drive the driving rod 16 to rotate. The driving rod 16 will drive the laser displacement sensor 2 to move synchronously through the frame rod 20 to move it away from the middle of the two clamping parts. Otherwise, the laser displacement sensor 2 will be reset.

[0042] like Figure 1 and Figure 2 As shown, the protection component also includes a slide rod 21, a sleeve 22 and a linkage component. The slide rod 21 is fixedly mounted on the frame rod 20, the sleeve 22 is fixedly mounted on the protective cover 3, and the sleeve 22 is slidably mounted on the slide rod 21. At the same time, the sleeve 22 can only slide along the axial direction of the slide rod 21. The linkage component is connected between the protective cover 3 and the base 1, and the sleeve 22 is driven to slide through the linkage component. At the same time, when the driving rod 16 rotates, the linkage component can be driven to operate synchronously.

[0043] like Figure 1 and Figure 2As shown, the linkage assembly includes a first linkage rod 23 and a second linkage rod 24, one end of the first linkage rod 23 is rotatably mounted on the base 1, and the rotation center of the first linkage rod 23 on the base 1 is staggered with the rotation center of the drive rod 16 on the base 1, the second linkage rod 24 is fixedly mounted on the end of the first linkage rod 23 away from the base 1, and the second linkage rod 24 is rotatably connected to the protective cover 3.

[0044] In this way, during the process of the first connecting rod 19 pulling the driving rod 16 to rotate, since the first connecting rod 23 pulls the protective cover 3 through the second connecting rod 24, during the rotation of the driving rod 16, it will drive the sliding rod 21 to slide in the middle of the sliding sleeve 22. In this way, the sliding sleeve 22 will drive the protective cover 3 to move relative to the laser displacement sensor 2 until the cover is arranged on its surface. This will provide good protection for the laser displacement sensor 2. Otherwise, the protective cover 3 will be detached, which is convenient for the detection of the laser sensor.

[0045] like Figure 1 and Figure 3 As shown, the transmission assembly includes a second connecting rod 25, a screw rod 26, a first connecting seat 27, a second connecting seat 28 and a third connecting rod 29. The first connecting seat 27 and the second connecting seat 28 are both slidably installed above the base 1. One end of the screw rod 26 is rotatably connected to the first connecting seat 27, and the other end is threadedly penetrated in the middle of the second connecting seat 28. One end of the second connecting rod 25 is rotatably connected to the driving rod 16, and the other end is rotatably connected to the first connecting seat 27. There are two third connecting rods 29, and they are symmetrically arranged. One end of the two third connecting rods 29 is rotatably connected to the two clamping parts respectively, and the other end is rotatably connected to the second connecting seat 28 at the same time.

[0046] In this way, in the process of the first connecting rod 19 pulling the driving rod 16 to rotate, the driving rod 16 will also drive the first connecting seat 27 to slide through the second connecting rod 25, and the first connecting seat 27 will drive the screw rod 26 to slide synchronously, and the screw rod 26 will drive the end of the third connecting rod 29 to move through the second connecting seat 28. At this time, since the first clamping seat 5 is slidingly connected to the guide rail 4, the third connecting rod 29 will push the first clamping seat 5 to slide. In this way, the two clamping parts can be moved away from each other at the same time, realizing the opening action of the two clamping parts. Conversely, they can be closed to clamp the speaker.

[0047] like Figure 3 As shown, a carrying platform 30 is fixedly mounted on the base 1, and the carrying platform 30 is located between the two clamping parts.

[0048] Therefore, the complete usage steps are as follows: first, start the cylinder 17. The movable end of the cylinder 17 will extend and drive the end of the first connecting rod 19 to move through the connecting plate 18. The first connecting rod 19 will drive the driving rod 16 to rotate. The driving rod 16 will drive the laser displacement sensor 2 to move synchronously through the frame rod 20 to move it away from the middle of the two clamping parts. In this process, since the first connecting rod 23 pulls the protective cover 3 through the second connecting rod 24, the driving rod 16 will drive the sliding rod 21 to slide in the middle of the sliding sleeve 22 during its rotation. In this way, the sliding sleeve 22 will drive the protective cover 3 to move relatively toward the laser displacement sensor 2 until the cover is arranged on its surface, which will provide good protection for the laser displacement sensor 2.

[0049] In the process of the first connecting rod 19 pulling the driving rod 16 to rotate, the driving rod 16 will also drive the first connecting seat 27 to slide through the second connecting rod 25, and the first connecting seat 27 will drive the screw rod 26 to slide synchronously, and the screw rod 26 will drive the end of the third connecting rod 29 to move through the second connecting seat 28. At this time, since the first clamping seat 5 is slidably connected to the guide rail 4, the third connecting rod 29 will push the first clamping seat 5 to slide, so that the two clamping parts can be moved away from each other at the same time, and the opening action of the two clamping parts can be achieved. At this time, the loudspeaker to be tested can be placed on the supporting platform 30, and then the driving cylinder 17 is retracted. At this time, the above action will run in the opposite direction, so that the two clamping parts are close to each other at the same time to clamp the loudspeaker, and at the same time, the sensing end of the laser displacement sensor 2 will be realigned to the middle of the two clamping parts, and the protective cover 3 will be separated from the laser displacement sensor 2. At this time, the vibration amplitude of the paper cone of the loudspeaker can be measured by the laser displacement sensor 2, so as to obtain the vibration parameters of the loudspeaker and complete the detection of the mechanical vibration of the loudspeaker.

[0050] It should be noted that during use, the user needs to adjust the first screw 11, the second screw 13 and the third screw 15 in advance so that the first clamping plate 7 and the second clamping plate 8 are in a suitable position to ensure that the two clamping parts can clamp the speaker on the supporting platform 30 when they are close.

[0051] In addition, during use, if the size of the speaker is large and the driving rod 16 cannot rotate to align the sensing end of the laser displacement sensor 2 with the middle of the two clamping parts, the screw rod 26 can also be manually rotated to adjust the position of the second connecting seat 28 on the screw rod 26, thereby changing the relative position of the two clamping parts.

[0052] In summary, during the entire use process, when placing the speaker to be tested, the laser displacement sensor 2 can be moved away from the fixed position of the speaker (i.e., between the two clamping parts) through the driving component, thereby greatly reducing the possibility of bumping into the laser displacement sensor 2 when placing the new speaker to be tested, thereby achieving good protection for the laser displacement sensor 2.

[0053] Moreover, during use, when the laser displacement sensor 2 is away from the fixed position of the speaker, the two clamping parts will be driven away from each other through the transmission assembly. This can not only facilitate the placement of a new speaker, but also avoid the speaker colliding with the laser displacement sensor 2 when the laser displacement sensor 2 is not removed (because the two clamping parts will clamp the speaker), making it more reliable to use.

[0054] At the same time, during use, the user can adjust the positions of the first clamping plate 7, the second clamping plate 8 and the second connecting seat 28. In this way, the entire detection device can be adapted to the detection of speakers of various sizes, greatly improving the adaptability.

[0055] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A speaker displacement laser detection device with good protection function, characterized in that: include: A base (1), wherein the base (1) is in the shape of a flat plate; A laser displacement sensor (2), wherein the laser displacement sensor (2) is movably mounted above the base (1), with the sensing end facing the base (1); A fixing assembly, the fixing assembly comprising two clamping parts, the two clamping parts having the same structure and being symmetrically arranged, the two clamping parts being slidably mounted on the base (1), and the two clamping parts being able to slide only towards or away from each other, and the two clamping parts being able to clamp the loudspeaker; A driving component, the driving component being connected to the laser displacement sensor (2) and capable of driving the laser displacement sensor (2) to move closer to or further away from the middle of the two clamping parts; A protection component, the protection component comprising a protection cover (3), the protection cover (3) being movably arranged on the base (1), and when the sensing end of the laser displacement sensor (2) moves toward the middle of the two clamping parts, the protection cover (3) moves away from the laser displacement sensor (2) and exposes it, and when the sensing end of the laser displacement sensor (2) moves away from the middle of the two clamping parts, the protection cover (3) moves close to the laser displacement sensor (2) and covers the surface of the laser displacement sensor (2); The transmission component is connected between the driving component and the two clamping parts, and when the sensing end of the laser displacement sensor (2) approaches the middle of the two clamping parts, the driving component can drive the two clamping parts to move closer to each other through the transmission component, and when the sensing end of the laser displacement sensor (2) moves away from the middle of the two clamping parts, the driving component can drive the two clamping parts to move away from each other through the transmission component.

2. The speaker displacement laser detection device with good protection function according to claim 1 is characterized in that: The fixing assembly also includes a guide rail (4), which is fixedly mounted on the base (1); the clamping portion includes a first clamping seat (5), a second clamping seat (6), a first clamping plate (7) and a second clamping plate (8); the first clamping seat (5) is slidably mounted on the guide rail (4); the second clamping seat (6) is slidably mounted above the first clamping seat (5); the first clamping plate (7) is slidably mounted on the side of the first clamping seat (5); and the second clamping plate (8) is slidably mounted on the side of the second clamping seat (6).

3. The speaker displacement laser detection device with good protection function according to claim 2 is characterized in that: A first flexible pad (9) is fixedly mounted on the side of the first clamping plate (7), and a second flexible pad (10) is fixedly mounted on the side of the second clamping plate (8). The first clamping plate (7) and the second clamping plate (8) are arranged on the same side of the first clamping seat (5), and the first clamping plate (7) and the second clamping plate (8) of the two clamping parts are symmetrically arranged, and the two first flexible pads (9) and the second flexible pads (10) are also symmetrically arranged.

4. The speaker displacement laser detection device with good protection function according to claim 3 is characterized in that: The clamping part also includes a first screw rod (11), a first guide rod (12), a second screw rod (13), a second guide rod (14) and a third screw rod (15). The first screw rod (11) is threadedly inserted in the middle of the first clamping seat (5), and the first screw rod (11) is rotatably connected to the first clamping plate (7). The first guide rod (12) is slidably inserted in the middle of the first clamping seat (5), and the end of the first guide rod (12) is fixedly connected to the first clamping plate (7). The second screw rod (13) is threadedly inserted in the middle of the second clamping seat (6), and the second screw rod (13) is rotatably connected to the second clamping plate (8). The second guide rod (14) is slidably inserted in the middle of the second clamping seat (6), and the end of the second guide rod (14) is fixedly connected to the second clamping plate (8). The third screw rod (15) is threadedly inserted in the middle of the second clamping seat (6), and the number of the third screw rods (15) is greater than or equal to two, and the end of the third screw rod (15) is threadedly connected to the first clamping seat (5).

5. The speaker displacement laser detection device with good protection function according to claim 1 is characterized in that: The driving assembly comprises a driving rod (16), a cylinder (17), a connecting plate (18) and a first connecting rod (19); the driving rod (16) is rotatably mounted on the base (1); a frame rod (20) is fixedly mounted on the surface of the driving rod (16); the laser displacement sensor (2) is fixedly mounted on the frame rod (20); the cylinder (17) is fixedly mounted on the base (1); the connecting plate (18) is fixedly mounted on the movable end of the cylinder (17); one end of the first connecting rod (19) is rotatably connected to the driving rod (16); and the other end is rotatably connected to an end of the connecting plate (18) away from the cylinder (17).

6. The speaker displacement laser detection device with good protection function according to claim 1 is characterized in that: The protection assembly further comprises a slide bar (21), a slide sleeve (22) and a linkage assembly. The slide bar (21) is fixedly mounted on the frame bar (20), the slide sleeve (22) is fixedly mounted on the protection cover (3), and the slide sleeve (22) is slidably mounted on the slide bar (21). The slide sleeve (22) can only slide along the axial direction of the slide bar (21). The linkage assembly is connected between the protection cover (3) and the base (1), and the slide sleeve (22) is driven to slide by the linkage assembly. When the driving rod (16) rotates, the linkage assembly can be driven to operate synchronously.

7. The speaker displacement laser detection device with good protection function according to claim 6 is characterized in that: The linkage assembly comprises a first linkage rod (23) and a second linkage rod (24); one end of the first linkage rod (23) is rotatably mounted on the base (1); the rotation center of the first linkage rod (23) on the base (1) and the rotation center of the driving rod (16) on the base (1) are staggered; the second linkage rod (24) is fixedly mounted on the end of the first linkage rod (23) away from the base (1); and the second linkage rod (24) is rotatably connected to the protective cover (3).

8. The speaker displacement laser detection device with good protection function according to claim 5 is characterized in that: The transmission assembly comprises a second connecting rod (25), a screw rod (26), a first connecting seat (27), a second connecting seat (28) and a third connecting rod (29). The first connecting seat (27) and the second connecting seat (28) are both slidably mounted above the base (1). One end of the screw rod (26) is rotatably connected to the first connecting seat (27), and the other end is threadedly inserted into the middle of the second connecting seat (28). One end of the second connecting rod (25) is rotatably connected to the driving rod (16), and the other end is rotatably connected to the first connecting seat (27). There are two third connecting rods (29) and they are symmetrically arranged. One end of the two third connecting rods (29) is rotatably connected to the two clamping parts respectively, and the other end is rotatably connected to the second connecting seat (28) at the same time.

9. The speaker displacement laser detection device with good protection function according to claim 1, characterized in that: A bearing platform (30) is fixedly mounted on the base (1), and the bearing platform (30) is located between the two clamping parts.

Images