CN220288777U - Laser positioning device for calibrating sound level meter - Google Patents
Laser positioning device for calibrating sound level meter Download PDFInfo
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- CN220288777U CN220288777U CN202322033093.5U CN202322033093U CN220288777U CN 220288777 U CN220288777 U CN 220288777U CN 202322033093 U CN202322033093 U CN 202322033093U CN 220288777 U CN220288777 U CN 220288777U
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- level meter
- sound level
- laser positioning
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- 238000001514 detection method Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000030279 gene silencing Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The utility model discloses a laser positioning device for calibrating a sound level meter, which relates to the technical field of sound level meter calibration, and aims at solving the problems that when the current sound level meter is calibrated, a microphone and the sound level meter are required to be replaced repeatedly, the restorability of the positions of the microphone and the sound level meter cannot be guaranteed accurately, the distance is inaccurate, and measurement errors are caused by subsequent calibration. The device not only can rapidly and accurately measure the distance between the microphone or the sound level meter and the sound source and avoid the difference of the distance, but also can rapidly switch the sound level meter and the microphone for use, and has simple and convenient operation and improved detection efficiency.
Description
Technical Field
The utility model relates to the technical field of sound level meter calibration, in particular to a laser positioning device for sound level meter calibration.
Background
In the prior art, in the sound level timing calibration, a sound source and a standard microphone are required to be placed at opposite positions according to requirements, the distance is 1 meter, and then in the calibration test process, the standard microphone is required to be replaced by a sound level meter, so that the operation is repeated for a plurality of times.
In the prior art, the replacement process of the standard microphone and the sound level meter needs to be operated repeatedly in the calibration process, the restorability of the positions of the standard microphone and the sound level meter cannot be ensured accurately, and the distance is inaccurate, so that measurement errors are caused for subsequent calibration.
Disclosure of Invention
The utility model provides a laser positioning device for calibrating a sound level meter, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a laser positioning device is used in sound level meter calibration, includes the amortization room, the mounting bracket is installed to amortization room one side inner wall, install cross laser positioning appearance on the mounting bracket, cross laser positioning appearance has range finding function and cross cursor locate function, the sound source is installed in the place ahead of cross laser positioning appearance, install on the amortization room opposite side inner wall and change the subassembly, it rotates the change structure for gear connection's meshing to change the subassembly, sliding connection has locating component on the change subassembly, locating component is connected with microphone and sound level meter respectively, locating component is threaded connection's extrusion location and clamping structure.
Preferably, the sound source and the microphone are installed in the sound-deadening room in a facing position, and the distance between the microphone and the sound level meter and the sound source is 1 meter.
Preferably, a cross cursor sent by the cross laser positioning instrument is respectively aligned with the center of the sound transducer and the sound level meter.
Preferably, the replacing assembly comprises a rotating block, one end of the rotating block is connected with a driving gear, one side of the driving gear is connected with a driven gear in a meshed mode, and the driven gear is a half gear.
Preferably, a mounting plate is arranged on one side of the driven gear, which is close to the rotating block, and sliding rails are respectively arranged above the mounting plate.
Preferably, the driving gear and the driven gear are installed in the inner wall of the silencing room.
Preferably, the positioning assembly comprises two sliding blocks, the two sliding blocks are respectively connected with the two sliding rails in a sliding manner, and the two sides of the two sliding blocks are respectively connected with positioning screw blocks in a threaded manner.
Preferably, the upper sliding block is provided with a mounting block, the mounting block is connected with a mounting screw block in a threaded manner, and the mounting block is movably connected with a sound level meter.
Preferably, the fixed block is installed to the slider below of below, fixed block one side is provided with the movable block, movable block top sliding connection has the fixed box, movable block upper end is kept away from fixed block one side and is connected with the screw rod, the screw rod screw thread extends to the fixed box outside.
Preferably, the fixed box is arranged at the bottom of the lower sliding block, and the microphone is clamped between the fixed block and the movable block.
The beneficial effects of the utility model are as follows:
1. the device is used for measuring and displaying the distance between the microphone or the sound level meter through the arranged cross laser positioning instrument, and can accurately and rapidly measure the distance by subtracting the length of the sound source, namely the distance between the microphone or the sound level meter and the sound source, so that the distance is prevented from being placed for multiple times, and the difference is caused.
2. The device uses through the installation piece and the cooperation of installation spiral shell piece that set up, is convenient for install or dismantle the sound level meter, uses through the screw rod, movable block and the fixed block cooperation that set up, is convenient for install and dismantle the microphone, convenient operation, and the flexibility is high, and through the setting of changing the subassembly, can switch the use to sound level meter and microphone fast, avoids need dismantling repeatedly and changes, easy and simple to handle, improves detection efficiency.
In summary, the device not only can rapidly and accurately measure the distance between the microphone or the sound level meter and the sound source and avoid the difference of the distance, but also can rapidly switch the sound level meter and the microphone for use, is simple and convenient to operate and improves the detection efficiency.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of the mounting frame of the present utility model.
Fig. 3 is a schematic side view of the present utility model.
Fig. 4 is a schematic view of the structure of fig. 3 at another view angle according to the present utility model.
Fig. 5 is a schematic view of the laser positioning of a sound source according to the present utility model.
FIG. 6 is a schematic diagram of the laser positioning of the present utility model.
Reference numerals in the drawings: 1. a sound deadening room; 2. a mounting frame; 3. a cross laser positioning instrument; 4. a sound source; 5. a sound level meter; 6. a microphone; 7. a positioning assembly; 701. a slide block; 702. positioning a screw block; 703. a mounting block; 704. installing a screw block; 705. a fixed block; 706. a movable block; 707. a fixed box; 708. a screw; 8. replacing the assembly; 801. a rotating block; 802. a drive gear; 803. a driven gear; 804. a mounting plate; 805. a slide rail.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1 and 2, this embodiment provides a laser positioning device for sound level meter calibration, including amortization room 1, mounting bracket 2 is installed to amortization room 1 one side inner wall, install cross laser positioning appearance 3 on mounting bracket 2, cross laser positioning appearance 3 has range finding function and cross cursor locate function, sound source 4 is installed in the place ahead of cross laser positioning appearance 3, install on the 1 opposite side inner wall of amortization room, change subassembly 8 and change the structure for gear connection's meshing rotation, change subassembly 8 on sliding connection have locating component 7, locating component 7 is connected with microphone 6 and sound level meter 5 respectively, locating component 7 is threaded connection's extrusion location and clamping structure.
Referring to fig. 5 and 6, the key points of the test procedure are shown:
1. the sound source 4 and the microphone 6 are arranged in the silencing room 1 according to the opposite positions, the distance between the microphone 6 and the sound level meter 5 and the sound source 4 is 1 meter, the distance can be accurately measured when the microphone 6 and the sound level meter 5 are placed each time, a cross cursor emitted by the cross laser positioning instrument 3 is respectively aligned with the centers of the sound sensor 6 and the sound level meter 5, the purpose of arranging the cross laser positioning instrument 3 behind the sound source 4 is that the position can be consistent each time, the distance is 1 meter, at the moment, the sound source is started, and standard sound level data is acquired by using the standard sound level meter;
2. taking out the standard microphone 6, replacing the standard microphone with a tested sound level meter 5, keeping the position of the standard microphone just opposite to the sound source 4 at a distance of 1 meter, starting the sound source 4 at the moment, and collecting data by using the tested sound level meter 5;
in the whole measurement process, as different data are required to be set for the sound source 4, the test of the standard microphone 6 and the sound level meter 5 is repeatedly exchanged, and the first step and the second step are repeated; therefore, the utility model is to ensure that the positions and distances of the microphone 6 to be tested, the sound level meter 5 and the sound source 4 are kept fixed in the process of repeated installation, and the positions influence the test data, which is the meaning of the utility model.
As shown in fig. 1, 3 and 4, the replacing assembly 8 includes a rotating block 801 for controlling the driving gear 802 to rotate, so as to be in meshed connection with the driven gear 803, for controlling the mounting plate 804 to rotate, and for replacing and switching the sound level meter 5 and the microphone 6, one end of the rotating block 801 is connected with the driving gear 802, one side of the driving gear 802 is in meshed connection with the driven gear 803, the driving gear 802 and the driven gear 803 are mounted in the inner wall of the silencing room 1, the driven gear 803 is a half gear, the mounting plate 804 is mounted on one side of the driven gear 803 close to the rotating block 801, and the sliding rails 805 are respectively mounted above the mounting plate 804.
As shown in fig. 1, 3 and 4, the positioning assembly 7 comprises two sliding blocks 701, the two sliding blocks 701 are respectively connected with two sliding rails 805 in a sliding manner, two sides of each sliding block 701 are respectively connected with a positioning screw block 702 in a threaded manner, an installation block 703 is installed on the sliding block 701 above, an installation screw block 704 is connected with the installation block 703 in a threaded manner and is used for installing or dismantling the sound level meter 5, the sound level meter 5 is movably connected with the installation block 703, a fixed block 705 is installed below the sliding block 701 below, a movable block 706 is arranged on one side of the fixed block 705, a fixed box 707 is connected above the movable block 706 in a sliding manner, a screw 708 is connected on one side, far away from the fixed block 705, of the upper end of the movable block 706 and is used for controlling the movable block 706 to move so as to install or dismantle the microphone 6, the screw 708 extends to the outside of the fixed box 707, the fixed box 707 is installed at the bottom of the sliding block 701 below, and the microphone 6 is clamped between the fixed block 705 and the movable block 706.
The working principle of the utility model is as follows: when the device is used, the cross laser positioning instrument 3 is controlled to be opened, the position of the sound transmitter 6 is detected, the detected distance is displayed, the length of the sound source 4 is subtracted from the displayed distance, the sound transmitter 6 can be controlled to be opened just 1 meter, then a calibration test is carried out, when the sound transmitter 6 needs to be replaced by the sound level meter 5, the sound transmitter 6 is closed, the sound level meter 5 is opened, the rotating block 801 is screwed, the driving gear 802 is driven to rotate, the driven gear 803 and the mounting plate 804 are driven to rotate, the rotation is 180 degrees, the sound level meter 5 faces downwards, and the cross laser positioning instrument 3 faces the sound level meter 5;
in the use, according to user's demand, accessible screw the set screw piece 702, the removal is removed the spacing to slider 701, removes slider 701, can adjust the position of sound level meter 5 or microphone 6, through screw installation screw piece 704, is convenient for install and dismantle sound level meter 5, through rotating screw 708 for control movable block 706 removes, thereby can install and dismantle microphone 6.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (10)
1. The utility model provides a laser positioning device is used in sound level meter calibration, includes amortization room (1), a serial communication port, mounting bracket (2) are installed to amortization room (1) one side inner wall, install cross laser positioning appearance (3) on mounting bracket (2), cross laser positioning appearance (3) have range finding function and cross cursor locate function, sound source (4) are installed in the place ahead of cross laser positioning appearance (3), change subassembly (8) are installed on amortization room (1) opposite side inner wall, change subassembly (8) and rotate the change structure for gear connection's meshing, change on subassembly (8) sliding connection have locating component (7), locating component (7) are connected with microphone (6) and sound level meter (5) respectively, locating component (7) are threaded connection's extrusion location and clamping structure.
2. The laser positioning device for calibrating a sound level meter according to claim 1, wherein the sound source (4) and the microphone (6) are installed in the sound deadening room (1) in a facing position, and the distance between the microphone (6) and the sound level meter (5) and the sound source (4) is 1 meter.
3. The laser positioning device for calibrating a sound level meter according to claim 1, wherein a cross cursor emitted by the cross laser positioning instrument (3) is aligned with the center of the sound transducer (6) and the sound level meter (5), respectively.
4. The laser positioning device for calibrating a sound level meter according to claim 1, wherein the replacing assembly (8) comprises a rotating block (801), one end of the rotating block (801) is connected with a driving gear (802), one side of the driving gear (802) is connected with a driven gear (803) in a meshing manner, and the driven gear (803) is a half gear.
5. The laser positioning device for calibrating a sound level meter according to claim 4, wherein a mounting plate (804) is mounted on one side of the driven gear (803) close to the rotating block (801), and slide rails (805) are respectively mounted above the mounting plate (804).
6. The laser positioning device for sound level meter calibration according to claim 4, wherein the driving gear (802) and the driven gear (803) are mounted in an inner wall of the sound deadening room (1).
7. The laser positioning device for calibrating a sound level meter according to claim 1, wherein the positioning assembly (7) comprises two sliding blocks (701), the two sliding blocks (701) are respectively connected with two sliding rails (805) in a sliding manner, and positioning screw blocks (702) are respectively connected with two sides of the two sliding blocks (701) in a threaded manner.
8. The laser positioning device for calibrating a sound level meter according to claim 7, wherein a mounting block (703) is mounted on the upper sliding block (701), a mounting screw block (704) is connected to the mounting block (703) in a threaded manner, and a sound level meter (5) is movably connected to the mounting block (703).
9. The laser positioning device for calibrating a sound level meter according to claim 7, wherein a fixed block (705) is installed below the sliding block (701) below, a movable block (706) is arranged on one side of the fixed block (705), a fixed box (707) is slidably connected above the movable block (706), a screw (708) is connected to one side, far away from the fixed block (705), of the upper end of the movable block (706), and the screw (708) extends to the outside of the fixed box (707) in a threaded manner.
10. The laser positioning device for calibrating a sound level meter according to claim 9, wherein the stationary case (707) is mounted on the bottom of a lower slider (701), and the microphone (6) is sandwiched between the stationary block (705) and the movable block (706).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322033093.5U CN220288777U (en) | 2023-07-31 | 2023-07-31 | Laser positioning device for calibrating sound level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322033093.5U CN220288777U (en) | 2023-07-31 | 2023-07-31 | Laser positioning device for calibrating sound level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220288777U true CN220288777U (en) | 2024-01-02 |
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ID=89338765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322033093.5U Active CN220288777U (en) | 2023-07-31 | 2023-07-31 | Laser positioning device for calibrating sound level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220288777U (en) |
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2023
- 2023-07-31 CN CN202322033093.5U patent/CN220288777U/en active Active
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