Multifunctional sound level meter
By designing the protective cover and limit block structure on the multi-function sound level meter, the problem of exposed devices being vulnerable to damage is solved, and effective protection and convenient operation during the carrying process is achieved.
Patent Information
- Application Number
- CN202422716046.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-11-08
AI Technical Summary
During the carrying process of existing multi-functional sound level meter, the exposed display screen and microphone are susceptible to damage and lack effective protective structure.
A multi-functional sound level meter is designed, adopting a protective cover and limit block structure, the protective cover is placed on the sound level meter body, and it is stuck in the card slot by rotating the limit block and spring mechanism, providing protection, and through The magnets are conveniently opened and closed.
Effectively prevent the damage of exposed devices during carrying the sound level meter, improving the safety and convenience of carrying.
Smart Images
Figure CN222144303U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of multifunctional sound level meters, in particular to a multifunctional sound level meter. Background Art
[0002] A sound level meter is a professional measuring instrument used to measure and analyze the intensity of sound, usually expressed in decibels (dB). It plays a key role in environmental monitoring, industrial safety assessment, audio engineering, and acoustic research. A sound level meter can not only measure the intensity of sound, but also perform frequency analysis, time weighting, and statistical processing to comprehensively assess the impact of noise environments on health and the environment.
[0003] When using the current multifunctional sound level meter, the staff often finds that the current sound level meter is provided with a display screen and a microphone, and the display screen and the microphone are exposed on the outside of the shell. The sound level meter usually needs to be carried outside for operation. If the exposed components are not protected during the carrying process, they are easily damaged. Summary of the invention
[0004] The utility model aims to solve the shortcomings in the prior art and provides a multifunctional sound level meter.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multifunctional sound level meter, comprising a sound level meter body, a display screen is fixedly connected to the sound level meter body, a plurality of buttons are arranged on the sound level meter body, a microphone is fixedly connected to the sound level meter body, a protective structure is arranged on the sound level meter body, the protective structure is mainly composed of a protective cover, the protective cover is sleeved on the surface of the sound level meter body, storage grooves are respectively provided on the inner walls on both sides of the protective cover, a rotating shaft is rotatably connected in the storage groove, a limiting block is fixedly connected to the rotating shaft, and card slots are respectively provided on both sides of the sound level meter body.
[0006] The effects achieved by the above components are: the sound level meter body is started by a button, the microphone can capture sound waves, and convert the pressure changes of the sound waves into electrical signals. The electrical signals are amplified by the preamplifier and converted into DC signals through the detector for measurement. In order to simulate the sensitivity of the human ear to sounds of different frequencies, a frequency weighting network is built into the sound level meter body to provide measurement results that are closer to human ear perception, and fast, slow and pulse time response modes are provided to adapt to different types of noise measurements. The measurement results are processed and displayed on the display screen, and the data can be recorded for subsequent analysis. When carrying the sound level meter body, the protective cover is put on the sound level meter body to protect the microphone and the display screen, and the two limit blocks are turned to make them stuck in the corresponding card slots to limit the protective cover, thereby avoiding the situation that the sound level meter usually needs to be carried out for operation. If the exposed devices are not protected during the carrying process, they are easily damaged.
[0007] Preferably, two first springs are sleeved on the rotating shaft, one end of the first spring is fixedly connected to the limiting block, and the other end of the first spring is fixedly connected to the inner wall of the receiving groove.
[0008] The effect achieved by the above components is: when the protective cover is locked, the two sides of the sound level meter body will push the two limit blocks into the storage slot, causing the rotating shaft to rotate. At this time, the first spring is in a twisted state. When the limit block contacts the slot, it will be stuck in the slot under the action of the rebound force of the first spring, making the operation more convenient.
[0009] Preferably, a pull rope is fixedly connected to the limit block, and one end of the pull rope is fixedly connected to the inner wall of the storage groove.
[0010] The effect achieved by the above components is that the pull rope can limit the limit block.
[0011] Preferably, a first iron block is fixedly connected to the limit block, and second iron blocks are fixedly connected to both sides of the protective structure, and a magnet is provided on the second iron block.
[0012] The effect achieved by the above components is: when the protective cover needs to be removed, just place the magnet on one side of the first iron block, attract the first iron block under the action of magnetic force, drive the shaft to rotate, and usually adsorb the magnet on the second iron block to facilitate the storage of the magnet.
[0013] Preferably, a support structure is provided on the sound level meter body, and the support structure is mainly composed of a rectangular groove, the rectangular groove is opened on the sound level meter body, a rotating shaft is rotatably connected in the rectangular groove, and a support block is fixedly connected to the rotating shaft.
[0014] The effect achieved by the above components is that rotating the rotating shaft can drive the supporting block to rotate, thereby supporting the sound level meter body.
[0015] Preferably, a support plate is rotatably connected to the support block, and a rubber pad is fixedly connected to the support plate.
[0016] The effect achieved by the above components is that the support plate is placed on the table, and the rubber pad can increase friction to improve stability.
[0017] Preferably, a support rod is rotatably connected to the support block.
[0018] The effect achieved by the above components is that one end of the support rod is pressed against the inner wall of the rectangular groove, thereby improving the supporting effect.
[0019] Preferably, two second springs are sleeved on the rotating shaft, one end of the second spring is fixedly connected to the supporting block, and the other end of the second spring is fixedly connected to the inner wall of the rectangular groove.
[0020] The effect achieved by the above components is: when the support rod is against the inner wall of the rectangular groove, the second spring is in a twisted state, so the rebound force of the second spring acts on the support block to fold the support rod back into the support block. The support block is then retracted into the rectangular groove under the action of the rebound force of the second spring, and the support block is limited to prevent the support block from rotating out of the rectangular groove during the movement of the sound level meter body.
[0021] Compared with the prior art, the advantages and positive effects of the utility model are that, in the utility model, by setting a protective structure, when the sound level meter body is carried, the protective cover is put on the sound level meter body to protect the microphone and the display screen, and the two limit blocks are rotated to make them stuck in the corresponding card slots to limit the protective cover, thereby avoiding the situation where the exposed components are easily damaged when the sound level meter is carried outside for operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 A three-dimensional structural schematic diagram of a multifunctional sound level meter is proposed for the utility model;
[0023] Figure 2 A partial schematic diagram of a protective structure of a multifunctional sound level meter is provided for the utility model;
[0024] Figure 3 A partial schematic diagram of a supporting structure of a multifunctional sound level meter is provided for the utility model;
[0025] Figure 4 A flow chart of a multifunctional sound level meter is proposed for the utility model.
[0026] Legend: 1. Sound level meter body; 2. Display screen; 3. Button; 4. Microphone; 5. Protective structure; 51. Protective cover; 52. Storage slot; 53. Rotating shaft; 54. Limit block; 55. Slot; 56. First spring; 57. Pull rope; 58. First iron block; 59. Second iron block; 510. Magnet; 6. Support structure; 61. Rectangular slot; 62. Rotating shaft; 63. Support block; 64. Support plate; 65. Support rod; 66. Second spring. DETAILED DESCRIPTION
[0027] Embodiment 1, as Figure 1 As shown, a multifunctional sound level meter comprises a sound level meter body 1, a display screen 2 is fixedly connected to the sound level meter body 1, a plurality of buttons 3 are arranged on the sound level meter body 1, and a microphone 4 is fixedly connected to the sound level meter body 1.
[0028] Reference Figure 1 and Figure 2The sound level meter body 1 is provided with a protective structure 5, which is mainly composed of a protective cover 51. The protective cover 51 is provided on the sound level meter body 1. The inner walls of both sides of the protective cover 51 are respectively provided with storage grooves 52. A rotating shaft 53 is rotatably connected in the storage groove 52. A limited position block 54 is fixedly connected to the rotating shaft 53. Card slots 55 are respectively provided on both sides of the sound level meter body 1. The sound level meter body 1 is started by pressing the button 3. The microphone 4 can capture sound waves and convert the pressure changes of the sound waves into electrical signals. The electrical signals are amplified by the preamplifier and converted into DC signals through the detector for measurement. In order to simulate the human ear's The sound level meter body 1 has a built-in frequency weighting network to provide measurement results that are closer to human ear perception, and provides fast, slow and impulse time response modes to adapt to different types of noise measurements. The measurement results are processed and displayed on the display screen 2, and the data can be recorded for subsequent analysis. When carrying the sound level meter body 1, the protective cover 51 is put on the sound level meter body 1 to protect the microphone 4 and the display screen 2, and the two limit blocks 54 are rotated to make them stuck in the corresponding card slots 55 to limit the protective cover 51, thereby avoiding the need to carry the sound level meter outside for operation. If the exposed devices are not protected during carrying, they are easily damaged. Two first springs 56 are sleeved on the rotating shaft 53. One end of the first spring 56 is fixedly connected to the limit block 54, and the other end of the first spring 56 is fixedly connected to the inner wall of the storage groove 52. When the protective cover 51 is clamped, the two sides of the sound level meter body 1 will push the two limit blocks 54 into the storage groove 52, so that the rotating shaft 53 rotates. At this time, the first spring 56 is in a twisted state. When the limit block 54 contacts the card slot 55, it will be clamped in the card slot 55 under the action of the rebound elastic force of the first spring 56, making the operation easier. Convenient, a pull rope 57 is fixedly connected to the limit block 54, one end of the pull rope 57 is fixedly connected to the inner wall of the storage groove 52, and the pull rope 57 can limit the limit block 54. A first iron block 58 is fixedly connected to the limit block 54, and second iron blocks 59 are fixedly connected to both sides of the protective structure 5. A magnet 510 is arranged on the second iron block 59. When the protective cover 51 needs to be removed, the magnet 510 only needs to be placed on one side of the first iron block 58. The first iron block 58 is attracted by the magnetic force to drive the rotating shaft 53 to rotate. The magnet 510 is usually adsorbed on the second iron block 59 to facilitate the storage of the magnet 510.
[0029] Reference Figure 3The sound level meter body 1 is provided with a support structure 6, which is mainly composed of a rectangular groove 61. The rectangular groove 61 is provided on the sound level meter body 1. A rotating shaft 62 is rotatably connected in the rectangular groove 61. A support block 63 is fixedly connected to the rotating shaft 62. Rotating the rotating shaft 62 can drive the support block 63 to rotate to support the sound level meter body 1. A support plate 64 is rotatably connected to the support block 63. A rubber pad is fixedly connected to the support plate 64. The support plate 64 is placed on a table. The rubber pad can increase friction to improve stability. A support rod 65 is rotatably connected to the support block 63. One end of the support rod 65 is pressed against the inner wall of the rectangular groove 61. , which can improve the supporting effect. Two second springs 66 are sleeved on the rotating shaft 62. One end of the second spring 66 is fixedly connected to the supporting block 63, and the other end of the second spring 66 is fixedly connected to the inner wall of the rectangular groove 61. When the supporting rod 65 is against the inner wall of the rectangular groove 61, the second spring 66 is in a twisted state. Therefore, the rebound force of the second spring 66 acts on the supporting block 63 to fold the supporting rod 65 back into the supporting block 63. The supporting block 63 is retracted into the rectangular groove 61 under the action of the rebound force of the second spring 66, and the supporting block 63 is limited to prevent the supporting block 63 from rotating out of the rectangular groove 61 during the movement of the sound level meter body 1.
[0030] Working principle: Press button 3 to start the sound level meter 1. Microphone 4 can capture sound waves and convert the pressure changes of sound waves into electrical signals. The electrical signals are amplified by the preamplifier and converted into DC signals by the detector for measurement. In order to simulate the sensitivity of the human ear to sounds of different frequencies, a frequency weighting network is built into the sound level meter 1 to provide measurement results that are closer to human ear perception. Fast, slow and impulse time response modes are provided to adapt to different types of noise measurements. The measurement results are processed and displayed on the display 2. At the same time, the data can be recorded for subsequent analysis. When the sound level meter body 1 is installed, the protective cover 51 is put on the sound level meter body 1 to protect the microphone 4 and the display screen 2, and the two limit blocks 54 are rotated to be stuck in the corresponding card slots 55 to limit the protective cover 51, thereby avoiding the situation that the sound level meter usually needs to be carried out for operation, and if the exposed components are not protected during the carrying process, they are easily damaged. When the protective cover 51 is stuck, the two sides of the sound level meter body 1 will push the two limit blocks 54 into the storage slots 52, so that the rotating shaft 53 rotates. At this time, the first spring 56 is in a twisted state. When the limit When the stop block 54 contacts the card slot 55, it will be stuck in the card slot 55 under the action of the rebound elastic force of the first spring 56, making the operation more convenient. The pull rope 57 can limit the stop block 54. When the protective cover 51 needs to be removed, it is only necessary to place the magnet 510 on one side of the first iron block 58. The first iron block 58 is attracted under the action of magnetic force to drive the rotating shaft 53 to rotate. Usually, the magnet 510 is adsorbed on the second iron block 59 to facilitate the storage of the magnet 510. Rotating the rotating shaft 62 can drive the supporting block 63 to rotate to support the sound level meter body 1. The supporting plate 64 is placed On the table top, the rubber pad can increase friction to improve stability. Pressing one end of the support rod 65 against the inner wall of the rectangular groove 61 can improve the supporting effect. When the support rod 65 presses against the inner wall of the rectangular groove 61, the second spring 66 is in a twisted state, so the rebound force of the second spring 66 acts on the support block 63 to fold the support rod 65 back into the support block 63. The support block 63 is then retracted into the rectangular groove 61 under the action of the rebound force of the second spring 66, and the support block 63 is limited to prevent the support block 63 from rotating out of the rectangular groove 61 during the movement of the sound level meter body 1.
[0031] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.
Claims
1. A multifunctional sound level meter, comprising a sound level meter body (1), characterized in that: The sound level meter body (1) is fixedly connected to a display screen (2), the sound level meter body (1) is provided with a plurality of buttons (3), the sound level meter body (1) is fixedly connected to a microphone (4), the sound level meter body (1) is provided with a protective structure (5), the protective structure (5) mainly comprises a protective cover (51), the protective cover (51) is sleeved on the surface of the sound level meter body (1), storage grooves (52) are respectively provided on the inner walls on both sides of the protective cover (51), a rotating shaft (53) is rotatably connected in the storage groove (52), a limit block (54) is fixedly connected to the rotating shaft (53), and a clamping groove (55) is respectively provided on both sides of the sound level meter body (1).
2. The multifunctional sound level meter according to claim 1, characterized in that: Two first springs (56) are sleeved on the rotating shaft (53), one end of the first spring (56) is fixedly connected to the limiting block (54), and the other end of the first spring (56) is fixedly connected to the inner wall of the receiving groove (52).
3. The multifunctional sound level meter according to claim 2, characterized in that: A pull rope (57) is fixedly connected to the limit block (54), and one end of the pull rope (57) is fixedly connected to the inner wall of the storage groove (52).
4. The multifunctional sound level meter according to claim 3, characterized in that: A first iron block (58) is fixedly connected to the limit block (54), and second iron blocks (59) are fixedly connected to both sides of the protective structure (5), respectively, and a magnet (510) is provided on the second iron block (59).
5. The multifunctional sound level meter according to claim 4, characterized in that: The sound level meter body (1) is provided with a support structure (6), the support structure (6) mainly consisting of a rectangular groove (61), the rectangular groove (61) being provided on the sound level meter body (1), a rotating shaft (62) being rotatably connected in the rectangular groove (61), and a support block (63) being fixedly connected to the rotating shaft (62).
6. The multifunctional sound level meter according to claim 5, characterized in that: The support block (63) is rotatably connected to a support plate (64), and the support plate (64) is fixedly connected to a rubber pad.
7. The multifunctional sound level meter according to claim 6, characterized in that: A support rod (65) is rotatably connected to the support block (63).
8. The multifunctional sound level meter according to claim 7, characterized in that: Two second springs (66) are sleeved on the rotating shaft (62), one end of the second spring (66) is fixedly connected to the supporting block (63), and the other end of the second spring (66) is fixedly connected to the inner wall of the rectangular groove (61).