Intelligent mechanical equipment noise acquisition device

Abstract

The utility model belongs to the technical field of noise detection, and particularly relates to a noise acquisition device for intelligent mechanical equipment. Comprising a sound level meter body, a windproof cover is detachably installed on a microphone at one end of the sound level meter body, a containing groove is formed in the bottom of the sound level meter body, a telescopic support is arranged in the containing groove, and a motor used for driving the telescopic support to rotate relative to the sound level meter body is arranged in the sound level meter body. Space limitation is broken through through the telescopic support, the problem that an existing sound level meter is difficult to operate manually in narrow spaces such as the interior of a mechanical arm and an equipment interlayer is solved, the telescopic support can be remotely controlled to be unfolded, the angle can be adjusted, the microphone can be accurately aligned with a sound source, measured numerical values are more accurate, and operation is more convenient. And in cooperation with rapid disassembly and assembly of the magnetic type windshield and anti-interference design, full-automatic noise collection under complex working conditions is achieved, the feasibility and accuracy of noise detection of a closed space in the fields of automobile manufacturing and mechanical equipment machining are greatly improved, and the use requirements of users are met.

Description

Technical Field

[0001] This utility model relates to the field of noise detection technology, specifically to a noise acquisition device for intelligent mechanical equipment. Background Technology

[0002] Intelligent noise acquisition devices (sound level meters), as electronic instruments that simulate the perception characteristics of the human ear, have their core value in reproducing the time and intensity characteristics of sound waves perceived by the human ear when converting sound signals into electrical signals. Current technological breakthroughs lie in integrating AI-driven intelligent noise analysis and noise reduction optimization systems for mechanical equipment. These systems use deep learning algorithms to analyze noise spectrum characteristics in real time, enabling equipment health status assessment and the generation of proactive noise reduction strategies, significantly enhancing the decision-making value of noise data in industrial scenarios. However, existing sound level meters still have the following shortcomings in use:

[0003] Most existing sound level meters on the market are handheld. The microphone of the sound level meter needs to be pointed directly at the sound source during testing. In scenarios such as automobile manufacturing and metal processing, noise detection is required in narrow spaces such as inside robotic arms and equipment compartments, but it is difficult for personnel to enter (such as engine compartments and inside milling machines), which causes serious trouble for users.

[0004] Therefore, we propose an intelligent mechanical equipment noise acquisition device to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an intelligent mechanical equipment noise acquisition device, which solves the problem mentioned in the background that it is inconvenient for personnel to enter narrow spaces for noise detection.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] A noise acquisition device for intelligent mechanical equipment includes a sound level meter body. A windproof cover is detachably installed on a microphone at one end of the sound level meter body. A storage groove is provided at the bottom of the sound level meter body. A telescopic bracket is provided inside the storage groove. A motor for driving the telescopic bracket to rotate relative to the sound level meter body is provided inside the sound level meter body.

[0010] Furthermore, the telescopic bracket includes an inner tube, a movable tube, and an outer tube that are sequentially sleeved from the inside out, and a fixed shaft is provided inside one end of the inner tube.

[0011] Furthermore, one end of the fixed shaft extends into the interior of the sound level meter body and is provided with a bevel gear disk that meshes with the bevel gear at the motor output end.

[0012] Furthermore, both the inner tube and the movable tube are equipped with spring clips, which are used for positioning the movable tube and the outer tube after they extend out, respectively.

[0013] Furthermore, a copper nut is fixedly embedded at the end of the outer tube away from the fixed shaft, and a buckle is provided on one side of the inner wall of the storage groove, with one end engaging with one end of the outer tube.

[0014] Furthermore, a magnetic shielding ring is fixedly sleeved on the outside of the microphone at one end of the sound level meter body, and at least two magnetic pillars are symmetrically arranged on the magnetic shielding ring.

[0015] Furthermore, a magnetic shielding plate is embedded inside one end of the windproof cover. The magnetic shielding plate is coaxial with the magnetic shielding ring. Two grooves are provided on one side of the magnetic shielding plate, which are respectively connected to one end of two magnetic pillars. Magnetic blocks are provided inside the grooves, and the magnetic blocks are magnetically attracted to the magnetic pillars.

[0016] Furthermore, the bottom of the sound level meter body is provided with an inspection port opposite to the motor, and the bottom of the inspection port is provided with an inspection cover.

[0017] Furthermore, slide rails are provided on both sides of the inspection port, and the top two sides of the inspection cover are respectively slidably connected to the two slide rails. A screw with one end screwed into the inspection port is provided inside one end of the inspection cover.

[0018] Furthermore, the spring clip includes a spring piece, the spring piece has a V-shaped bend in the middle, and the spring piece has locking posts at both ends.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, this utility model provides an intelligent mechanical equipment noise acquisition device, which has the following beneficial effects:

[0021] This invention overcomes spatial limitations by using a telescopic bracket, solving the problem of existing sound level meters being difficult to operate manually in narrow spaces such as inside robotic arms or equipment compartments. The telescopic bracket can be remotely controlled to unfold and adjust its angle, allowing the microphone to be precisely aligned with the sound source, resulting in more accurate measurement values. Combined with a magnetic windproof cover for quick assembly and disassembly and an anti-interference design, it enables fully automatic noise acquisition under complex working conditions, significantly improving the feasibility and accuracy of noise detection in enclosed spaces in the automotive manufacturing and machinery processing industries, and meeting user needs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main structure of the sound level meter of this utility model;

[0023] Figure 2 This is a schematic diagram of the bottom structure of the main body of the sound level meter of this utility model;

[0024] Figure 3 This is a schematic diagram of the inspection port structure of this utility model;

[0025] Figure 4 This is a cross-sectional view of the storage slot structure of this utility model;

[0026] Figure 5 This is a cross-sectional view of the windproof cover structure of this utility model;

[0027] Figure 6 This is a cross-sectional view of the copper nut structure of this utility model;

[0028] Figure 7 This is a cross-sectional view of the fixed shaft structure of this utility model.

[0029] In the diagram: 1. Sound level meter body; 11. Microphone; 12. Magnetic shielding ring; 13. Magnetic column; 14. Inspection port; 15. Inspection cover; 16. Slide rail; 2. Windproof cover; 21. Magnetic shielding plate; 22. Magnetic block; 3. Storage slot; 31. Buckle; 4. Telescopic bracket; 41. Inner tube; 42. Movable tube; 43. Outer tube; 44. Fixed shaft; 45. Bevel gear disc; 46. Spring buckle; 461. Spring piece; 462. V-shaped bend; 463. Locking post; 47. Copper nut; 48. Locking hole; 5. Motor; 51. Bevel gear. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example

[0032] like Figure 1-7As shown in the figure, an embodiment of this utility model proposes an intelligent mechanical equipment noise acquisition device, including a sound level meter body 1. A windproof cover 2 is detachably installed on the microphone 11 at one end of the sound level meter body 1. A storage groove 3 is provided at the bottom of the sound level meter body 1. A telescopic bracket 4 is provided inside the storage groove 3. A motor 5 for driving the telescopic bracket 4 to rotate relative to the sound level meter body 1 is provided inside the sound level meter body 1. The motor 5 is electrically connected to the main control board inside the sound level meter body 1. The motor 5 is a DC geared motor 5. The motor 5 is connected to the control board (STM32F407 main controller) through a PWM signal line. The control board integrates a wireless communication module (ESP32-C3, supporting Bluetooth 5.2 and 2.4GHz radio frequency). Users can remotely control the rotation of the motor 5 through a mobile phone noise detection PP or a remote control. This allows users to hold the telescopic bracket 4 away from the sound level meter body 1 and still adjust the angle of the sound level meter body 1 to ensure that its microphone 11 is precisely aligned with the noise source, making it more intelligent to use.

[0033] like Figure 4-7 As shown, in some embodiments, the telescopic bracket 4 includes an inner tube 41, a movable tube 42 and an outer tube 43 that are sequentially sleeved from the inside to the outside. A fixed shaft 44 is provided inside one end of the inner tube 41, and one end of the fixed shaft 44 extends into the interior of the sound level meter body 1 and is provided with a bevel gear disk 45 that meshes with the bevel gear 51 at the output end of the motor 5.

[0034] When the telescopic bracket 4 is extended, since the sound level meter body 1 is far from the extended outer tube 43, after the sound level meter body 1 is inserted into the equipment, the angle can be adjusted by remotely controlling the motor 5 to rotate relative to the telescopic bracket 4, which is inconvenient for personnel to adjust manually. This makes the operation more convenient and the measurement position more accurate.

[0035] like Figure 6 As shown, in some embodiments, both the inner tube 41 and the movable tube 42 are provided with spring buckles 46, which are used for positioning the movable tube 42 and the outer tube 43 after they are extended. The spring buckle 46 includes a spring piece 461, a V-shaped bend 462 is provided in the middle of the spring piece 461, and locking posts 463 are provided on both ends of the spring piece 461.

[0036] The end of the movable tube 42 furthest from the spring clip 46 has a locking hole 48 inside, which is used to engage with the spring clip 46 inside the inner tube 41 for limiting the movement. The end of the outer tube 43 furthest from the copper nut 47 also has a locking hole 48, which is used to engage with the spring clip 46 inside the movable tube 42 for limiting the movement. The starting motor 5 flips the telescopic bracket 4 out from the storage slot 3, pulling the outer tube 43. The outer tube 43 slides on the movable tube 42. When the locking hole 48 on the outer tube 43 aligns with the spring clip 46 inside the movable tube 42, the spring piece 461 rebounds, causing the locking post 463 to engage with the outer tube 42. Inside the locking hole 48 on tube 43, the outer tube 43 and the movable tube 42 are deployed and positioned. When the outer tube 43 is pulled, the movable tube 42 slides on the inner tube 41. When the locking hole 48 on the movable tube 42 is aligned with the spring buckle 46 inside the movable inner tube 41, the spring piece 461 rebounds and drives the locking pin 463 to engage inside the locking hole 48 on the movable tube 42, thus achieving the deployment and positioning between the inner tube 41 and the movable tube 42. To release the positioning, simply press the locking pin 463 to deform the spring piece 461 and retract it into the movable tube 42 or the inner tube 41.

[0037] like Figure 6 As shown, in some embodiments, a copper nut 47 is fixedly embedded at one end of the outer tube 43 away from the fixed shaft 44, and a buckle 31 with one end engaged with one end of the outer tube 43 is provided on one side of the inner wall of the storage groove 3.

[0038] The copper nut 47 is designed so that when the extended length of the telescopic bracket 4 is still insufficient to meet the distance of the noise measurement position, it can be extended by connecting an external bracket with a screw at one end, further improving the product's versatility. The buckle 31 is a plastic part, and one end of the outer tube 43 has a groove that matches the buckle 31. When the telescopic bracket 4 is retracted into place, the motor 5 is started to drive the telescopic bracket 4 into the storage slot 3. After it is retracted into place, one end of the outer tube 43 engages with the buckle 31, so that the telescopic bracket 4 can still maintain a stable storage state even when the motor 5 is powered off. There is also a notch on the side of the outer tube 43 away from the buckle 31, so that personnel can easily pry out the telescopic bracket 4.

[0039] like Figure 5 As shown, in some embodiments, a magnetic shielding ring 12 is fixedly sleeved on the outside of the microphone 11 at one end of the sound level meter body 1. At least two magnetic pillars 13 are symmetrically arranged on the magnetic shielding ring 12. A magnetic shielding plate 21 is embedded inside one end of the windproof cover 2. The magnetic shielding plate 21 is coaxial with the magnetic shielding ring 12. Two grooves are provided on one side of the magnetic shielding plate 21, which are respectively connected to one end of the two magnetic pillars 13. A magnetic block 22 is provided inside the groove. The magnetic block 22 is magnetically connected to the magnetic pillar 13.

[0040] The magnetic column 13 protrudes and is inserted into the groove. This design not only allows the magnetic column 13 and the magnetic block 22 to be stably attracted and not fall off, but also prevents the magnetic shielding ring 12 and the magnetic shielding plate 21 from rotating relative to each other, further ensuring the stability of the windproof cover 2, and also making it easy to disassemble and assemble later.

[0041] like Figure 3 As shown, in some embodiments, the bottom of the sound level meter body 1 is provided with an inspection port 14 opposite to the motor 5, and the bottom of the inspection port 14 is provided with an inspection cover 15. In some embodiments, slide rails 16 are provided on both sides of the inspection port 14, and the top two sides of the inspection cover 15 are respectively slidably connected to the two slide rails 16. A screw with one end screwed into the inspection port 14 is provided inside one end of the inspection cover 15.

[0042] The slide rail 16 is T-shaped, and the inside of the inspection cover 15 is provided with a sliding groove that matches the slide rail 16. The bottom of the inspection cover 15 is provided with a rubber pad to cover the screw holes. When maintenance is required, the rubber pad is removed, and then the screw is unscrewed with a screwdriver. The inspection cover 15 can then be slid to expose the inspection port 14. The slide rail 16 reduces the number of screws used and makes disassembly and assembly more convenient.

[0043] In summary, the retractable bracket 4 overcomes spatial limitations and solves the pain point of existing sound level meters being difficult to operate manually in narrow spaces such as inside robotic arms and equipment compartments. The retractable bracket 4 can be remotely controlled to unfold and adjust its angle, allowing the microphone 11 to be precisely aligned with the sound source, resulting in more accurate measurement values. Combined with the magnetic windproof cover 2 for quick disassembly and anti-interference design, it enables fully automatic noise acquisition under complex working conditions, significantly improving the feasibility and accuracy of noise detection in enclosed spaces in the automotive manufacturing and machinery processing fields, and meeting user needs.

[0044] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A noise acquisition device for intelligent mechanical equipment, comprising a sound level meter body (1), characterized in that: A windproof cover (2) is detachably installed on the microphone (11) at one end of the sound level meter body (1). A storage groove (3) is provided at the bottom of the sound level meter body (1). A telescopic bracket (4) is provided inside the storage groove (3). A motor (5) is provided inside the sound level meter body (1) to drive the telescopic bracket (4) to rotate relative to the sound level meter body (1).

2. The intelligent mechanical equipment noise acquisition device according to claim 1, characterized in that: The telescopic bracket (4) includes an inner tube (41), a movable tube (42) and an outer tube (43) that are sequentially connected from the inside to the outside. A fixed shaft (44) is provided inside one end of the inner tube (41).

3. The intelligent mechanical equipment noise acquisition device according to claim 2, characterized in that: One end of the fixed shaft (44) extends into the interior of the sound level meter body (1) and is provided with a bevel gear disk (45) that meshes with the bevel gear (51) at the output end of the motor (5).

4. The intelligent mechanical equipment noise acquisition device according to claim 2, characterized in that: Both the inner tube (41) and the movable tube (42) are equipped with spring clips (46) for positioning the movable tube (42) and the outer tube (43) after they extend out, respectively.

5. The intelligent mechanical equipment noise acquisition device according to claim 4, characterized in that: A copper nut (47) is fixedly embedded at one end of the outer tube (43) away from the fixed shaft (44), and a buckle (31) is provided on one side of the inner wall of the storage groove (3) with one end engaging with one end of the outer tube (43).

6. The intelligent mechanical equipment noise acquisition device according to claim 1, characterized in that: A magnetic shielding ring (12) is fixedly sleeved on the outside of the microphone (11) at one end of the sound level meter body (1), and at least two magnetic pillars (13) are symmetrically arranged on the magnetic shielding ring (12).

7. The intelligent mechanical equipment noise acquisition device according to claim 1, characterized in that: A magnetic shielding plate (21) is embedded inside one end of the windproof cover (2). The magnetic shielding plate (21) is coaxial with the magnetic shielding ring (12). Two grooves are provided on one side of the magnetic shielding plate (21), which are respectively connected to one end of two magnetic pillars (13). A magnetic block (22) is provided inside the groove. The magnetic block (22) is magnetically connected to the magnetic pillar (13).

8. The intelligent mechanical equipment noise acquisition device according to claim 1, characterized in that: The bottom of the sound level meter body (1) is provided with an inspection port (14) opposite to the motor (5), and the bottom of the inspection port (14) is provided with an inspection cover (15).

9. The intelligent mechanical equipment noise acquisition device according to claim 8, characterized in that: The inspection port (14) is provided with slide rails (16) on both sides. The top two sides of the inspection cover (15) are respectively slidably connected to the two slide rails (16). One end of the inspection cover (15) is provided with a screw that is screwed into the inspection port (14).

10. The intelligent mechanical equipment noise acquisition device according to claim 4, characterized in that: The spring clip (46) includes a spring piece (461), a V-shaped bend (462) is provided in the middle of the spring piece (461), and locking posts (463) are provided at both ends of the spring piece (461).

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