Sound pressure test positioning device
By using a frame base, frame top, vertical rod, top movable longitudinal rod, and retractable scale tie rod structure, the problems of high cost, low efficiency, and poor accuracy of existing sound pressure testing devices are solved, realizing a sound pressure testing positioning device that is quick to assemble, highly versatile, and highly accurate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN INTRETECH
- Filing Date
- 2025-09-11
- Publication Date
- 2026-07-14
AI Technical Summary
Existing sound pressure testing devices are costly, inefficient, and inaccurate. In particular, multiple sets of frames need to be customized for different sizes and reflective surfaces, resulting in high equipment costs, large space occupation, large positioning errors, and poor reproducibility.
It adopts a frame base, frame top, vertical rod, top movable longitudinal rod, vertical hanging rod and retractable scale tie rod structure to achieve rapid assembly and precise positioning. The three-dimensional coordinates can be read directly through the scale, adapting to different sizes and reflective surface scenarios.
It enables precise positioning of the same device in scenarios with different sizes and reflective surfaces, reduces positioning errors, improves testing efficiency, and reduces equipment costs and space occupation.
Smart Images
Figure CN224499690U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of acoustic testing equipment technology, and specifically to a sound pressure testing and positioning device. Background Technology
[0002] According to GB / T 3767, a coordinate system needs to be established around the sound source and multiple microphones need to be deployed before measurement. Sound sources of different sizes and shapes correspond to various measurement surfaces such as hemispheres, parallelepipeds, or cylinders. In some scenarios, fixed-size positioning frames are customized for each series of sound sources. However, customized frames need to be designed separately for each measurement surface, resulting in high equipment costs, large space occupation in the anechoic chamber, and frequent replacements that reduce testing efficiency. In other scenarios, a single-point positioning device made of tripods is used. It first moves in the xy plane and then adjusts the z-axis height point by point. Multiple sets of devices are configured as needed. However, single-point tripods rely on manual visual inspection point by point, resulting in large positioning errors, poor reproducibility, and the need to add a tripod for each additional measurement point, leading to low overall efficiency.
[0003] Therefore, this application proposes a sound pressure testing and positioning device that can be quickly assembled, is highly versatile and accurate, in order to solve the problems of high cost, low efficiency and poor accuracy. Utility Model Content
[0004] To address the issues of high cost, low efficiency, and poor accuracy, this application provides a sound pressure testing and positioning device.
[0005] This application provides a sound pressure testing and positioning device, which adopts the following technical solution:
[0006] A sound pressure testing and positioning device includes a frame base, a frame top, vertical rods, and vertical suspension rods and pull rods arranged in a corresponding manner. The two ends of the vertical rods are vertically connected to the frame base and the frame top, respectively. The frame top includes a top movable longitudinal rod, which is movably arranged along the top of the frame. Both the frame top and the outer wall of the frame base are provided with graduations. At least two vertical suspension rods are provided, with the top movable longitudinal rod corresponding to each vertical suspension rod. The vertical suspension rod is connected to the top movable longitudinal rod. A pull rod is retractably nested within the vertical suspension rod and is also provided with graduations. A microphone clamp is installed at the end of the pull rod away from the vertical suspension rod, and / or detachable microphone clamps are installed on the pull rod and the vertical suspension rod at corresponding graduations.
[0007] By adopting the above technical solution, through the coordinated structure of the frame base, frame top, vertical rod, top movable longitudinal rod, at least two vertical hanging rods, and retractable scale tie rod, it is possible to cover all measurement surfaces of different sizes and different reflective surfaces with the same device. This solves the problem of high cost and large space occupation caused by the need to customize multiple sets of frames in the existing technology. At the same time, by using the scale of the top movable longitudinal rod and tie rod, three-dimensional coordinates can be directly read and reproduced, overcoming the defects of large positioning errors and poor reproducibility of manual visual measurement, thus achieving the effect of rapid assembly, strong versatility and high accuracy.
[0008] Optionally, the outer walls of both the vertical rod and the tie rod are provided with a 1mm graduation value, and the vertical rod is made up of standard sections connected together, with standard section lengths of 1m, 10cm, 20cm, 30cm, 40cm or 50cm.
[0009] By adopting the above technical solution, operators can accurately set the microphone position in one go without additional measuring tools, further reducing positioning errors and improving testing efficiency.
[0010] Optionally, it also includes a T-shaped tee, which is movably fitted onto the top movable longitudinal rod, and the vertical hanger is connected to one end of the T-shaped tee. The T-shaped tee is made of transparent material and has an alignment line in the middle for aligning with the scale.
[0011] By adopting the above technical solution, rapid and precise sliding and locking in the Y-axis direction can be achieved, simplifying the adjustment steps and shortening the preparation time for point placement.
[0012] Optionally, it also includes a vertical moving rod, the two ends of which are movably connected to the frame base and the frame base, respectively.
[0013] By adopting the above technical solution, a vertical moving rod is added and a movable vertical support is formed between the frame base and the top, so that the frame can slide as a whole in the X-axis direction. This creates space to avoid the sound source being measured when it is close to the corner or wall, ensuring the accurate positioning of the origin O of the reference body coordinates and solving the defect that the traditional fixed frame cannot adapt to multi-reflection surface scenarios.
[0014] Optionally, the frame base includes a bottom crossbar and a bottom longitudinal bar, with two bottom crossbars vertically connected to the two ends of the bottom longitudinal bar.
[0015] By adopting the above technical solution, a stable horizontal reference surface is formed, providing a reliable origin for the entire three-dimensional coordinate system.
[0016] Optionally, the frame base also includes a bottom movable longitudinal bar, the two ends of which are movably connected to the two bottom crossbars respectively.
[0017] By adopting the above technical solution, the addition of a bottom movable vertical rod allows the rod to slide along the X-axis while keeping the overall frame stationary. This creates clearance space when the sound source being tested is close to the wall, ensuring accurate positioning of the reference coordinate origin O for two reflective surfaces. Sliding along the X-axis when needed provides additional clearance space for the sound source being tested, adapting to different sizes of sound sources and reflective surface arrangements, thus improving the device's versatility. The ability of the rod to slide along the X-axis while the overall frame remains stationary, combined with the sliding of the bottom movable vertical rod and the shortening of the splicing length of the bottom horizontal rod at the corner where the sound source is placed, creates clearance space when the sound source is close to the corner, ensuring accurate positioning of the reference coordinate origin O for three reflective surfaces. The vertical movable rod and the bottom movable vertical rod, when moved to the outermost edge, represent a single reflective surface. This method solves the problem of traditional fixed frames being unable to adapt to multi-reflective-surface scenarios.
[0018] Optionally, the bottom crossbar, the bottom longitudinal bar, and the bottom movable longitudinal bar are all connected by standard sections, with standard section lengths of 1m, 10cm, 20cm, 30cm, 40cm, or 50cm, and all of them have scales on their outer walls.
[0019] By adopting the above technical solutions, the anechoic chamber space and sound source size can be flexibly combined to reduce redundant structures, lower storage and transportation costs, and at the same time, the scale can be used to realize rapid size confirmation and improve assembly efficiency.
[0020] Optionally, the frame base further includes a base, which is provided with multiple bases and supported on the bottom crossbar and the bottom longitudinal bar.
[0021] By adopting the above technical solution, the frame is raised to facilitate the movement of the rods, and the contact area with the ground for sound reflection is reduced, thereby reducing the interference of ground reflection on the sound pressure test results.
[0022] Optionally, the top of the frame includes a top horizontal bar and a top vertical bar. Two top horizontal bars are provided and are vertically connected to both ends of the top vertical bar. Both ends of the top movable vertical bar are movably connected to the two top horizontal bars.
[0023] By adopting the above technical solution, a stable slide rail is provided for the top moving longitudinal bar UYY, ensuring a large range and continuous adjustment in the XY plane, and meeting the requirements for the layout of measurement surfaces of hemispheres, cylinders or polyhedra.
[0024] Optionally, the top horizontal bar, the top vertical bar, and the top movable vertical bar are all connected by standard sections, with standard section lengths of 1m, 10cm, 20cm, 30cm, 40cm, or 50cm, and all of them have scales on their outer walls.
[0025] By adopting the above technical solution, the top size and bottom size can be adjusted synchronously, enabling modular expansion and rapid reassembly of the overall frame.
[0026] In summary, this application includes the following beneficial technical effects:
[0027] 1. Through the collaborative structure of the frame base, frame top, vertical rod, top movable longitudinal rod, at least two vertical suspension rods, and retractable scale tie rod, the device can cover all measurement surfaces of different sizes and reflective surfaces in different scenarios with the same device. This solves the problem of high cost and large space occupation caused by the need to customize multiple sets of frames in the existing technology. At the same time, by using the scale of the top movable longitudinal rod and tie rod, three-dimensional coordinates can be directly read and reproduced, overcoming the defects of large positioning error and poor reproducibility of manual visual measurement. Thus, it achieves the effects of rapid assembly, strong versatility and high accuracy.
[0028] 2. Both the vertical rod and the tie rod have 1mm graduations on their outer walls, allowing operators to accurately set the microphone position in one go without additional measuring tools, further reducing positioning errors and improving testing efficiency;
[0029] 3. The addition of a bottom movable longitudinal rod and a vertical movable rod that can slide in the X-axis direction creates space to avoid the sound source being measured when it is close to a corner or wall, ensuring the accurate positioning of the origin O of the reference body coordinates and solving the defect that the traditional fixed frame cannot adapt to multi-reflective surface scenarios. Attached Figure Description
[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.
[0031] In the diagram:
[0032] Figure 1 This is a schematic diagram of the structure of a reflective surface in the sound pressure testing and positioning device according to an embodiment of this application;
[0033] Figure 2 This is a schematic diagram of the structure of the two reflective surfaces in the sound pressure testing and positioning device according to an embodiment of this application;
[0034] Figure 3 This is a schematic diagram of the three reflective surfaces in the sound pressure testing and positioning device according to an embodiment of this application;
[0035] Figure 4 This is a schematic diagram of the T-shaped tee in the sound pressure testing and positioning device according to an embodiment of this application.
[0036] Reference numerals: 1. Frame base; 11. Bottom crossbar; 12. Bottom longitudinal bar; 13. Bottom movable longitudinal bar; 14. Base; 2. Frame top; 21. Top movable longitudinal bar; 22. Top crossbar; 23. Top longitudinal bar; 3. Vertical bar; 4. Vertical hanger; 5. Tie rod; 6. T-shaped tee; 7. Vertical movable bar; 8. Alignment line. Detailed Implementation
[0037] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.
[0038] This application discloses a sound pressure testing and positioning device. (Refer to...) Figure 1 The sound pressure test positioning device includes a frame base, a frame top, a vertical rod, and corresponding vertical hangers and tie rods. The two ends of the vertical rod are vertically connected to the frame base and the frame top, respectively. The frame top includes a top movable longitudinal rod, which is movable along the frame top. Both the frame top and the outer wall of the frame base are provided with scales, which can be used to easily determine the position that the top movable longitudinal rod needs to move along the X-axis.
[0039] At least two vertical hangers are required, and in other embodiments, the number can be varied as needed. A top moving longitudinal bar corresponds one-to-one with each vertical hanger, and the vertical hangers are connected to the top moving longitudinal bar. In this embodiment, two vertical hangers and two top moving longitudinal bars are provided. The vertical hanger moves along the top moving longitudinal bar to determine the position to be moved along the Y-axis. A retractable tie rod is nested within the vertical hanger and is marked with graduations. The tie rod moves vertically along the vertical hanger to determine the position to be moved along the Z-axis. In this embodiment, the vertical hanger is hollow, and the tie rod is inserted into the hollow, allowing it to retract and extend along the length of the vertical hanger. Bolts are threaded through the vertical hanger and abut against the outer wall of the tie rod for fixation. In other embodiments, the tie rod and vertical hanger can also be fixed by pins or other means. A microphone clamp is installed at the end of the tie rod furthest from the vertical hanger. The microphone clamp is used to fix the microphone. Removable microphone clamps can also be installed on the tie rod and vertical hanger at corresponding graduations as needed.
[0040] Reference Figures 1-3 By confirming the movement position of the X, Y, and Z axes through the scale, the movement position is accurate, enabling the same device to cover all measurement surfaces of different sizes and reflective surfaces in different scenarios. Furthermore, the installation of vertical rods, tie rods, and frame bases and tops facilitates rapid assembly, solving the problems of high cost and large space occupation caused by the need to customize multiple frames in existing technologies. At the same time, by utilizing the scale of the top moving vertical rod and tie rod, three-dimensional coordinates can be directly read and reproduced, overcoming the defects of large positioning errors and poor reproducibility of manual visual measurement, thus achieving the effects of rapid assembly, strong versatility and high precision.
[0041] In some embodiments, the outer walls of both the vertical boom and the tie rod are marked with 1mm graduations. This allows the operator to accurately set the microphone position in one go without additional measuring tools, further reducing positioning errors and improving testing efficiency. Furthermore, in this embodiment, the vertical boom is constructed from 1m standard segments. The vertical boom is composed of these standard segments, with lengths of 1m, 10cm, 20cm, 30cm, 40cm, or 50cm.
[0042] Reference Figure 4 In some embodiments, a T-shaped tee is also included. The T-shaped tee is movably fitted onto the top movable longitudinal rod, and the vertical hanger is connected to one end of the T-shaped tee. The T-shaped tee is made of transparent material and has an alignment line with alignment markings in the middle. In this embodiment, the T-shaped tee is fixed to the top movable longitudinal rod by bolts in sequence, which, after being engaged with nuts, allows for stable fixing of the vertical hanger and facilitates easy movement of the vertical hanger to the corresponding position.
[0043] Reference Figures 1-4 In some embodiments, a vertical moving rod is also included, with its two ends movably connected to the frame base and the frame base, respectively.
[0044] In some embodiments, the frame base includes a bottom crossbar and a bottom longitudinal bar, both of which are horizontally arranged. Two bottom crossbars are provided and are vertically connected to the two ends of the bottom longitudinal bar.
[0045] In some embodiments, the frame base further includes a bottom movable longitudinal bar, the two ends of which are movably connected to two bottom crossbars.
[0046] In some embodiments, the frame base also includes a base, which is provided with multiple bases and supported on the bottom crossbar and bottom longitudinal bar.
[0047] In some embodiments, the top of the frame includes a top horizontal bar and a top vertical bar, both of which are horizontally arranged. Two top horizontal bars are provided and are vertically connected to the two ends of the top vertical bar. Both ends of the top movable vertical bar are movably connected to the two top horizontal bars.
[0048] In this embodiment, the bottom crossbar and bottom longitudinal bar are fixed together by a T-joint. Multiple bases are provided and supported by the bottom crossbar and bottom longitudinal bar. In this embodiment, three bases are provided along each bottom crossbar, with a height of 5cm, which provides stable support while raising the overall height, facilitating the movement of the top and bottom longitudinal bars.
[0049] The top horizontal bar and the top vertical bar are fixed together by a tee joint. The two ends of the top movable vertical bar are movably connected to the top horizontal bar and move through a T-shaped tee, and are fixed by bolts and nuts.
[0050] Three vertical bars are set, all of which are vertical. Two of them are connected at one end to the connection between the bottom horizontal bar and the bottom vertical bar, and at the other end to the connection between the top horizontal bar and the top vertical bar, respectively. One end of the third vertical bar is connected to the end of one of the bottom horizontal bars away from the bottom vertical bar, and at the other end is connected to the end of the top horizontal bar corresponding to one of the bottom horizontal bars.
[0051] The two ends of the vertical moving rod are movably connected to another bottom crossbar and a top crossbar, respectively. The vertical moving rod is also fixed to the bottom crossbar and the top crossbar by T-shaped tees.
[0052] Two top moving rods are respectively set on both sides of the vertical moving rod and the bottom moving rod. Adjusting the vertical moving rod and the bottom moving rod can adjust the position of the top moving rod, making it easier to adjust to the corresponding position. At the same time, the vertical moving rod and the bottom moving rod can also serve as supports.
[0053] In some embodiments, the bottom crossbar, bottom longitudinal bar, and bottom movable longitudinal bar are all connected by standard sections, the length of which is 1m, 10cm, 20cm, 30cm, 40cm, or 50cm, and all of them have scales on their outer walls.
[0054] In some embodiments, the top crossbar, the top longitudinal bar, and the top movable longitudinal bar are all connected by standard segments, the length of which is 1m, 10cm, 20cm, 30cm, 40cm, or 50cm, and all of them have scales on their outer walls.
[0055] Therefore, a suitable combination of standard sections can be selected according to the size of the anechoic chamber to fully adapt to the space of the anechoic chamber, or a positioning device of appropriate size can be assembled according to the size of the sound source being measured.
[0056] It should be noted that in this embodiment, the X-axis direction is the direction of movement along the length of the bottom or top crossbar, the Y-axis direction is the direction of movement along the length of the bottom or top longitudinal bar, and the Z-axis direction is the vertical direction, that is, the direction of movement along the length of the vertical rod.
[0057] The implementation principle of the sound pressure testing and positioning device in this application embodiment is as follows: through the coordinated structure of the frame base, frame top, vertical rod, top movable longitudinal rod, at least two vertical hanging rods, and retractable scale pull rod, the device can cover all measurement surfaces of different sizes and different reflective surfaces in the same scenario. This solves the problem of high cost and large space occupation caused by the need to customize multiple sets of frames in the prior art. At the same time, by using the scale of the top movable longitudinal rod and the pull rod, the three-dimensional coordinates can be directly read and reproduced, overcoming the defects of large errors and poor reproducibility of manual visual positioning, thereby achieving the effects of rapid assembly, strong versatility and high accuracy.
[0058] The above are exemplary embodiments disclosed in this invention. However, it should be noted that various changes and modifications can be made without departing from the scope of the embodiments of this invention as defined by the claims. The functions, steps, and / or actions of the methods according to the disclosed embodiments described herein do not need to be performed in any particular order. Furthermore, although the elements disclosed in the embodiments of this invention may be described or claimed individually, they may be understood as multiple unless explicitly limited to a singular number.
[0059] It should be understood that, as used herein, the singular form "a" is intended to include the plural form as well, unless the context clearly supports an exception. It should also be understood that, as used herein, "and / or" refers to any and all possible combinations of one or more of the associatedly listed items. The embodiment numbers disclosed above are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.
[0060] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples. Within the framework of the invention, technical features of the above embodiments or different embodiments can be combined, and many other variations of different aspects of the invention exist, which are not provided in the details for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.
Claims
1. A sound pressure testing and positioning device, characterized in that: The system includes a frame base, a frame top, vertical rods, and corresponding vertical hangers and tie rods. The two ends of each vertical rod are vertically connected to the frame base and the frame top, respectively. The frame top includes a top movable longitudinal rod, which is movably positioned along the top of the frame. Both the frame top and the frame base have graduations on their outer walls. At least two vertical hangers are provided, with each top movable longitudinal rod corresponding to one of the vertical hangers. Each vertical hanger is connected to the top movable longitudinal rod. A tie rod is retractably nested within the vertical hanger and is also marked with graduations. A microphone clamp is installed at the end of the tie rod furthest from the vertical hanger, and / or detachable microphone clamps are installed on the tie rod and the vertical hanger at corresponding graduations.
2. The sound pressure testing and positioning device according to claim 1, characterized in that: Both the vertical hanger and the tie rod have 1mm graduations on their outer walls, and the vertical hanger is made of standard sections connected together, with standard section lengths of 1m, 10cm, 20cm, 30cm, 40cm or 50cm.
3. The sound pressure testing and positioning device according to claim 1, characterized in that: It also includes a T-shaped tee, which is movably fitted onto the top movable vertical rod. The vertical hanger is connected to one end of the T-shaped tee, and the T-shaped tee is made of transparent material with an alignment line in the middle for aligning with the scale.
4. The sound pressure testing and positioning device according to claim 1, characterized in that: It also includes a vertical moving rod, the two ends of which are movably connected to the frame base and the frame base, respectively.
5. The sound pressure testing and positioning device according to claim 1, characterized in that: The frame base includes a bottom crossbar and a bottom longitudinal bar. Two bottom crossbars are provided and are vertically connected to the two ends of the bottom longitudinal bar.
6. The sound pressure testing and positioning device according to claim 5, characterized in that: The frame base also includes a bottom movable longitudinal bar, the two ends of which are movably connected to the two bottom crossbars respectively.
7. The sound pressure testing and positioning device according to claim 6, characterized in that: The bottom crossbar, the bottom longitudinal bar, and the bottom movable longitudinal bar are all connected by standard sections. The length of the standard sections is 1m, 10cm, 20cm, 30cm, 40cm, or 50cm, and all of them have scales on their outer walls.
8. The sound pressure testing and positioning device according to claim 5, characterized in that: The frame base also includes a base, which is provided with multiple bases and supported by the bottom crossbar and the bottom longitudinal bar.
9. A sound pressure testing and positioning device according to claim 1 or 5, characterized in that: The top of the frame includes a top horizontal bar and a top vertical bar. Two top horizontal bars are provided and are vertically connected to the two ends of the top vertical bar. The two ends of the top movable vertical bar are movably connected to the two top horizontal bars.
10. A sound pressure testing and positioning device according to claim 9, characterized in that: The top horizontal bar, the top vertical bar, and the top movable vertical bar are all connected by standard sections. The length of the standard sections is 1m, 10cm, 20cm, 30cm, 40cm, or 50cm, and all of them have scales on their outer walls.