Acoustic calibration experiment device

Abstract

The invention belongs to the technical field of acoustic metering instruments, and discloses an acoustic calibration experiment device which comprises a workbench and a supporting column, a sliding groove is formed in the workbench, a mounting plate is movably mounted in the sliding groove, a stand column is fixedly mounted at the top of the mounting plate, and a sound level calibrator is fixedly mounted at the top of the stand column. Compared with a traditional device, through cooperation of a second limiting block, a limiting groove and a second spring, the sound level calibrator can be conveniently disassembled and assembled, the flexibility of experiment operation is remarkably improved, an experimenter can rapidly and easily complete assembling and disassembling of the sound level calibrator, and therefore the experiment efficiency is improved; the design is also beneficial to the maintenance of the equipment, so that the experimenter can clean, calibrate and maintain the sound level calibrator more conveniently, and the long-term stable operation of the equipment is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of acoustic measuring instruments, in particular to an acoustic calibration experimental device. Background Art

[0002] An acoustic calibration experimental device belongs to the field of acoustic metrology and testing technology. It is an important device used in acoustic laboratories to calibrate and test acoustic measuring instruments, such as sound level meters, microphones, etc. The main purpose of this device is to ensure the accuracy and reliability of acoustic measuring instruments so as to obtain accurate data in acoustic research and applications. An acoustic calibration experimental device in the prior art has the problem of inconvenience in disassembly and assembly, and the experimenters often feel time-consuming and laborious when installing and disassembling the sound level calibrator, which not only reduces the flexibility of experimental operation, but also may lead to limited experimental efficiency. Due to the cumbersome disassembly and assembly process, it is difficult for the experimenters to regularly clean, calibrate and maintain the sound level calibrator, which poses a threat to the long-term stable operation of the equipment. In addition, the prior art may have limitations in design, resulting in the need for a large number of connectors and adapters to be connected to different experimental devices and solid bars, which not only increases the complexity of the experiment, but also increases the cost of the experiment. More importantly, this design limits the adaptability of the equipment, making it unable to flexibly respond to diverse experimental needs. Summary of the invention

[0003] The purpose of the present invention is to provide an acoustic calibration experimental device to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: an acoustic calibration experimental device, comprising a workbench and a support column, wherein a slide groove is provided inside the workbench, a mounting plate is movably installed inside the slide groove, a column is fixedly installed on the top of the mounting plate, and a sound level calibrator is fixedly installed on the top of the column;

[0005] An L-shaped block is fixedly installed at one end of the mounting plate, a second limiting block is fixedly installed at one end of the L-shaped block, a second spring is fixedly installed inside the slide groove, an armrest is fixedly installed at one end of the mounting plate, and a limiting groove is provided at the bottom of the workbench.

[0006] Preferably, a fixing frame is fixedly installed on the top of the support column, a solid rod is movably installed inside the fixing frame, a limiting block is movably installed inside the solid rod, a box is fixedly installed on the outside of the fixing frame, a pull rod is fixedly installed on one end of the limiting block, and one end of the pull rod passes through the inside of the box, a pull ring is fixedly installed on one end of the pull rod, and a spring is fixedly installed between the box and the limiting block.

[0007] Preferably, a detection block is movably installed inside the solid bar, a column is fixedly installed on the top of the detection block, a sleeve is movably installed inside the column, and an electric wire is electrically connected between the sleeve and the sound level calibrator.

[0008] Preferably, a support plate 1 is fixedly installed at the bottom of the workbench, and a connecting plate is fixedly installed between two support plates 1.

[0009] Preferably, a fixing seat is fixedly installed on the outer side of the support plate 1, a fixing block is movably installed inside the fixing seat, and a tool box is fixedly installed on the back side of the fixing block.

[0010] Preferably, an anti-collision pad is fixedly mounted on the outer surface of the sound level calibrator, and the anti-collision pad presents four shapes of the same size.

[0011] Preferably, a second support plate is fixedly mounted on the bottom of the support column, and a positioning hole is provided inside the second support plate.

[0012] Preferably, a reinforcing rib is fixedly installed at the angle between the support column and the second support plate, and the reinforcing rib is in a triangular shape.

[0013] The beneficial effects of the present invention are as follows:

[0014] 1. Compared with the traditional device, the present invention facilitates the disassembly and assembly of the sound level calibrator through the cooperation between the limit block 2, the limit groove and the spring 2, which significantly improves the flexibility of the experimental operation, so that the experimenter can quickly and easily complete the installation and disassembly of the sound level calibrator, thereby improving the experimental efficiency. Secondly, this design is also helpful for the maintenance and maintenance of the equipment, so that the experimenter can more conveniently clean, calibrate and maintain the sound level calibrator to ensure the long-term stable operation of the equipment. Since the sound level calibrator usually needs to be connected with different experimental devices and solid bars, the design that is easy to disassemble and assemble can also reduce the use of connectors and adapters, solve the inconvenience of disassembly and assembly, improve the convenience of maintenance, reduce the use of connectors and adapters, and improve the adaptability of equipment, thereby reducing the cost of the experiment.

[0015] 2. Compared with the traditional device, the present invention facilitates the limiting and fixing of the solid bar inside the fixed frame through the cooperation between the limiting block 1 and the spring 1, which can ensure the stability and safety of the solid bar to be tested during the experiment, prevent the solid bar from moving or shaking, and ensure the accuracy and reliability of the experimental results; it can also improve the experimental efficiency, by quickly positioning the solid bar, reducing the preparation time before measurement. In addition, the limiting and fixing also helps to protect the experimental device and the solid bar itself, preventing damage caused by the movement or shaking of the solid bar during the experiment, thereby extending the service life of the experimental device and the solid bar.

[0016] 3. Compared with the traditional device, the present invention facilitates the detection of solid bars through the cooperation between the sleeve and the sound level calibrator, and can accurately measure the sound signal in the solid bar, including the audio level and frequency, so as to ensure the accuracy of the detection result. At the same time, the use of the sound level calibrator for solid bar detection can greatly shorten the detection time and improve the detection efficiency, because it can automatically measure and record data, reducing the tediousness and errors of manual operation. In addition, the sound level calibrator can also promptly detect and solve potential acoustic problems, such as sound leakage and distortion, so as to ensure the overall quality of the solid bar system. At the same time, it can generate a detailed detection report to provide strong data support for the optimization and improvement of the solid bar system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front three-dimensional appearance structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the side three-dimensional appearance structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the fixing frame of the present invention;

[0020] Figure 4 For the present invention Figure 3 A is an enlarged structural diagram;

[0021] Figure 5 This is a schematic diagram of the top view of the detection tube of the present invention;

[0022] Figure 6 This is a schematic diagram of the exploded structure of the mounting plate of the present invention;

[0023] Figure 7 This is a schematic diagram of the local cross-sectional structure of the installation of the present invention.

[0024] In the figure: 1. workbench; 2. support column; 3. anti-collision pad; 4. sound level calibrator; 5. column; 6. mounting plate; 7. handrail; 8. L-shaped block; 9. support plate one; 10. connecting plate; 11. fixing seat; 12. fixing block; 13. tool box; 14. fixing frame; 15. detection block; 16. sleeve; 17. wire; 18. solid bar; 19. box; 20. pull ring; 21. support plate two; 22. positioning hole; 23. reinforcing rib; 24. column; 25. spring one; 26. limit block one; 27. pull rod; 28. limit groove; 29. ​​slide groove; 30. spring two; 31. limit block two. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figures 1 to 7 As shown, an embodiment of the present invention provides an acoustic calibration experimental device, including a workbench 1 and a support column 2. A slide groove 29 is provided inside the workbench 1. A mounting plate 6 is movably installed inside the slide groove 29. A column 5 is fixedly installed on the top of the mounting plate 6. A sound level calibrator 4 is fixedly installed on the top of the column 5.

[0027] An L-shaped block 8 is fixedly installed at one end of the mounting plate 6, a limiting block 2 31 is fixedly installed at one end of the L-shaped block 8, a spring 2 30 is fixedly installed inside the slide groove 29, an armrest 7 is fixedly installed at one end of the mounting plate 6, and a limiting groove 28 is provided at the bottom of the workbench 1.

[0028] The staff needs to install the sound level calibrator 4 on the top of the workbench 1, hold the handrail 7, align the mounting plate 6 with the inside of the slide groove 29 through the handrail 7, and then push the mounting plate 6 into the inside of the slide groove 29 through the handrail 7, and drive the sound level calibrator 4, the column 5, the L-shaped block 8 and the limit block 2 31 to move synchronously through the mounting plate 6, and squeeze the spring 2 30 inside the slide groove 29 through the mounting plate 6, so that the limit block 2 31 quickly enters the inside of the limit groove 28, when the sound level calibrator 4 needs to be disassembled, hold the handrail 7, and drive the mounting plate 6 to squeeze the spring 2 30 inside the slide groove 29 through the handrail 7, so that the limit block 2 31 is misaligned with the limit groove 28, and then move the limit block 2 31, so that the limit block 2 31 quickly disengages from the limit groove 28, thereby completing the disassembly and assembly of the sound level calibrator 4.

[0029] The sound level calibrator 4 needs to be installed on the top of the workbench 1, and the handrail 7 is held by hand, and the mounting plate 6 is aligned with the inside of the slide groove 29 through the handrail 7, and then the mounting plate 6 is pushed into the inside of the slide groove 29 through the handrail 7, and the sound level calibrator 4, the column 5, the L-shaped block 8 and the second limit block 31 are driven by the mounting plate 6 to move synchronously, and the second spring 30 is squeezed inside the slide groove 29 through the mounting plate 6, so that the second limit block 31 quickly enters the inside of the limit groove 28. Compared with the traditional device, the device is provided with a second limit block 31, a limit groove 28 and a second spring 30 through the cooperation between the second limit block 31 and the limit groove 28. , which makes it easy to disassemble and assemble the sound level calibrator 4, significantly improving the flexibility of the experimental operation, so that the experimenter can quickly and easily complete the installation and disassembly of the sound level calibrator 4, thereby improving the experimental efficiency. Secondly, this design is also helpful for the maintenance and maintenance of the equipment, so that the experimenter can more conveniently clean, calibrate and maintain the sound level calibrator to ensure the long-term stable operation of the equipment. Since the sound level calibrator usually needs to be connected with different experimental devices and solid bars, the design that is easy to disassemble and assemble can also reduce the use of connectors and adapters, thereby reducing the experimental cost.

[0030] Among them, a fixing frame 14 is fixedly installed on the top of the support column 2, a solid rod 18 is movably installed inside the fixing frame 14, a limiting block 26 is movably installed inside the solid rod 18, a box body 19 is fixedly installed on the outside of the fixing frame 14, a pull rod 27 is fixedly installed on one end of the limiting block 26, and one end of the pull rod 27 passes through the inside of the box body 19, a pull ring 20 is fixedly installed on one end of the pull rod 27, and a spring 25 is fixedly installed between the box body 19 and the limiting block 26.

[0031] The staff needs to limit and fix the solid bar 18 to be tested, hold the pull ring 20, pull the pull rod 27 through the pull ring 20, pull the limit block 26 through the pull rod 27 to move inside the fixed frame 14, and squeeze the spring 25 through the limit block 26, so that the limit block 26 passes through the interior of the fixed frame 14 and enters the interior of the box 19. Now put the solid bar 18 into the interior of the fixed frame 14. When the solid bar 18 completely enters the interior of the fixed frame 14, release the pull ring 20 and the pull rod 27, and squeeze the limit block 26 inside the box 19 through the spring 25, so that the limit block 26 passes through the fixed frame 14 and enters the interior of the solid bar 18. The solid bar 18 is limited and fixed by the limit block 26, thereby completing the limit fixation of the solid bar 18.

[0032] The solid bar 18 to be tested needs to be limited and fixed. Hold the pull ring 20, pull the pull rod 27 through the pull ring 20, pull the limit block 26 through the pull rod 27 to move inside the fixed frame 14, and squeeze the spring 25 through the limit block 26, so that the limit block 26 passes through the inside of the fixed frame 14 and enters the inside of the box 19. Now put the solid bar 18 into the inside of the fixed frame 14, release the pull ring 20 and the pull rod 27, and squeeze the limit block 26 through the inside of the box 19 through the spring 25, so that the limit block 26 passes through the inside of the fixed frame 14 and enters the inside of the solid bar 18. Compared with the traditional device, the limit fixation of the device facilitates the limit fixation of the solid bar 18 inside the fixed frame 14 through the cooperation between the limit block 26 and the spring 25, which can ensure the stability and safety of the solid bar 18 to be tested during the experiment, prevent the solid bar from moving or shaking, and ensure the accuracy and reliability of the experimental results; it can also improve the experimental efficiency, by quickly positioning the solid bar 18, reducing the preparation time before measurement. In addition, the limit fixation also helps to protect the experimental device and the solid bar itself, preventing damage caused by the movement or shaking of the solid bar during the experiment, thereby extending the service life of the experimental device and the solid bar.

[0033] The solid rod 18 has a detection block 15 movably installed inside, a column 24 is fixedly installed on the top of the detection block 15 , a sleeve 16 is movably installed inside the column 24 , and an electric wire 17 is electrically connected between the sleeve 16 and the sound level calibrator 4 .

[0034] The staff needs to conduct testing on the solid bar 18 by holding the column 24, placing the detection block 15 on the top of the solid bar 18 through the column 24, and then fixing the detection block 15 on the top of the solid bar 18 through bolts. Now slowly put the sleeve 16 on the inside of the column 24, and fix the sound level calibrator 4 and the wire 17 together through the wire 17, and turn on the sound level calibrator 4 at the same time, and perform acoustic testing through the sound level calibrator 4, thereby completing the testing of the solid bar 18.

[0035] The solid bar 18 needs to be tested. By holding the column 24, the detection block 15 is placed on the top of the solid bar 18 through the column 24, and then the detection block 15 is fixed to the top of the solid bar 18 by bolts. Now the sleeve 16 is slowly put into the interior of the column 24, and the sound level calibrator 4 is turned on. The acoustic detection is performed through the sound level calibrator 4. Compared with the traditional device, the device facilitates the detection of the solid bar 18 through the cooperation between the sleeve 16 and the sound level calibrator 4, and can accurately measure the sound signal in the solid bar 18. Including audio level and frequency, thereby ensuring the accuracy of the test results. At the same time, using the sound level calibrator 4 for solid bar testing can greatly shorten the test time and improve the test efficiency, because it can automatically measure and record data, reducing the tediousness and errors of manual operation. In addition, the sound level calibrator 4 can also promptly detect and solve potential acoustic problems, such as sound leakage and distortion, thereby ensuring the overall quality of the solid bar system. At the same time, it can generate a detailed test report to provide strong data support for the optimization and improvement of the solid bar system.

[0036] Among them, a support plate 9 is fixedly installed at the bottom of the workbench 1, and a connecting plate 10 is fixedly installed between the two support plates 9.

[0037] Through the cooperation between the support plate 9 and the connecting plate 10, it is convenient to provide stable support for the workbench 1, reduce the shaking of the workbench 1 during use, ensure the accuracy of the experimental data, and improve the stability of the workbench 1 during use.

[0038] Among them, a fixing seat 11 is fixedly installed on the outer side of the support plate 9, a fixing block 12 is movably installed inside the fixing seat 11, and a tool box 13 is fixedly installed on the back side of the fixing block 12.

[0039] By holding the tool box 13, the fixing block 12 is driven by the tool box 13 to slowly enter the interior of the fixing seat 11, and the fixing block 12 is limited and fixed by the fixing seat 11. By adding the tool box 13, it is convenient for the staff to take and place the maintenance tools in the tool box 13, thereby improving the maintenance efficiency of the device.

[0040] The outer surface of the sound level calibrator 4 is fixedly mounted with an anti-collision pad 3 , and the anti-collision pad 3 presents four shapes of the same size.

[0041] Since the anti-collision pad 3 presents four shapes of the same size on the outer surface of the sound level calibrator 4, the anti-collision pad 3 absorbs the impact energy, reduces the damage to the anti-collision pad 3 caused by the impact, avoids the risk of fragments of the anti-collision pad 3 flying, protects the experimenter from injury, and thus extends the service life of the instrument.

[0042] A second support plate 21 is fixedly mounted on the bottom of the support column 2 , and a positioning hole 22 is provided inside the second support plate 21 .

[0043] The staff drives the steel nail into the positioning hole 22, and uses the steel nail to limit and fix the support plate 21, and then supports the support column 2 through the support plate 21, so as to reduce the shaking of the support column 2 during use and improve the efficiency of the support column 2 during use.

[0044] A reinforcing rib 23 is fixedly installed at the angle between the supporting column 2 and the supporting plate 21, and the reinforcing rib 23 is in a triangular shape.

[0045] Since the toolbox 13 is in a triangular shape at the angle between the support plate 21 and the support column 2, and the triangle has the characteristic of stability, it is convenient to provide stable support for the support column 2 and the support plate 21 during use, avoiding the shaking of the support column 2 during use and improving the stability of the support column 2 during use.

[0046] Working principle and usage process:

[0047] The staff needs to install the sound level calibrator 4 on the top of the workbench 1, hold the handrail 7, align the mounting plate 6 with the inside of the slide groove 29 through the handrail 7, and then push the mounting plate 6 into the inside of the slide groove 29 through the handrail 7, and drive the sound level calibrator 4, the column 5, the L-shaped block 8 and the limit block 2 31 to move synchronously through the mounting plate 6, and squeeze the spring 2 30 inside the slide groove 29 through the mounting plate 6, so that the limit block 2 31 quickly enters the inside of the limit groove 28, when the sound level calibrator 4 needs to be disassembled, hold the handrail 7, and drive the mounting plate 6 to squeeze the spring 2 30 inside the slide groove 29 through the handrail 7, so that the limit block 2 31 is misaligned with the limit groove 28, and then move the limit block 2 31, so that the limit block 2 31 quickly disengages from the limit groove 28, thereby completing the disassembly and assembly of the sound level calibrator 4.

[0048] The staff needs to limit and fix the solid bar 18 to be tested, hold the pull ring 20, pull the pull rod 27 through the pull ring 20, pull the limit block 26 through the pull rod 27 to move inside the fixed frame 14, and squeeze the spring 25 through the limit block 26, so that the limit block 26 passes through the interior of the fixed frame 14 and enters the interior of the box 19. Now put the solid bar 18 into the interior of the fixed frame 14. When the solid bar 18 completely enters the interior of the fixed frame 14, release the pull ring 20 and the pull rod 27, and squeeze the limit block 26 inside the box 19 through the spring 25, so that the limit block 26 passes through the fixed frame 14 and enters the interior of the solid bar 18. The solid bar 18 is limited and fixed by the limit block 26, thereby completing the limit fixation of the solid bar 18.

[0049] The staff needs to conduct testing on the solid bar 18 by holding the column 24, placing the detection block 15 on the top of the solid bar 18 through the column 24, and then fixing the detection block 15 on the top of the solid bar 18 through bolts. Now slowly put the sleeve 16 on the inside of the column 24, and fix the sound level calibrator 4 and the wire 17 together through the wire 17, and turn on the sound level calibrator 4 at the same time, and perform acoustic testing through the sound level calibrator 4, thereby completing the testing of the solid bar 18.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An acoustic calibration experimental device, comprising a workbench (1) and a support column (2), characterized in that: The workbench (1) is provided with a slide groove (29) inside, a mounting plate (6) is movably mounted inside the slide groove (29), a column (5) is fixedly mounted on the top of the mounting plate (6), and a sound level calibrator (4) is fixedly mounted on the top of the column (5); An L-shaped block (8) is fixedly mounted on one end of the mounting plate (6), a second limiting block (31) is fixedly mounted on one end of the L-shaped block (8), a second spring (30) is fixedly mounted inside the slide groove (29), a handrail (7) is fixedly mounted on one end of the mounting plate (6), and a limiting groove (28) is provided at the bottom of the workbench (1).

2. The acoustic calibration experimental device according to claim 1, characterized in that: A fixing frame (14) is fixedly installed on the top of the support column (2), a solid rod (18) is movably installed inside the fixing frame (14), a limit block (26) is movably installed inside the solid rod (18), a box (19) is fixedly installed on the outside of the fixing frame (14), a pull rod (27) is fixedly installed on one end of the limit block (26), and one end of the pull rod (27) passes through the inside of the box (19), a pull ring (20) is fixedly installed on one end of the pull rod (27), and a spring (25) is fixedly installed between the box (19) and the limit block (26).

3. The acoustic calibration experimental device according to claim 2, characterized in that: A detection block (15) is movably mounted inside the solid bar (18), a column (24) is fixedly mounted on the top of the detection block (15), a sleeve (16) is movably mounted inside the column (24), and an electric wire (17) is electrically connected between the sleeve (16) and the sound level calibrator (4).

4. The acoustic calibration experimental device according to claim 1, characterized in that: A support plate (9) is fixedly mounted on the bottom of the workbench (1), and a connecting plate (10) is fixedly mounted between two support plates (9).

5. The acoustic calibration experimental device according to claim 4, characterized in that: A fixing seat (11) is fixedly mounted on the outer side of the support plate 1 (9), a fixing block (12) is movably mounted inside the fixing seat (11), and a tool box (13) is fixedly mounted on the back side of the fixing block (12).

6. The acoustic calibration experimental device according to claim 1, characterized in that: An anti-collision pad (3) is fixedly mounted on the outer surface of the sound level calibrator (4), and the anti-collision pad (3) presents four shapes of the same size.

7. The acoustic calibration experimental device according to claim 1, characterized in that: A second support plate (21) is fixedly mounted on the bottom of the support column (2), and a positioning hole (22) is provided inside the second support plate (21).

8. The acoustic calibration experimental device according to claim 1, characterized in that: A reinforcing rib (23) is fixedly installed at the angle between the support column (2) and the second support plate (21), and the reinforcing rib (23) is in a triangular shape.

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