A high-precision sound pressure detection module

Abstract

This utility model relates to a high-precision sound pressure detection module, including a base, a height adjustment assembly, and a sound pressure detection sensor. The height adjustment assembly includes a column, a lifting rod, and a lead screw. The column is fixedly mounted on the outer wall of the top of the base, and the lifting rod is inserted into the top of the column. The bottom end of the lead screw is rotatably connected to the outer wall of the top of the base via a bearing, and a toothed sleeve is provided on the outer wall of the lead screw. The lifting rod is threaded onto the outside of the lead screw. A guide rod is fixedly mounted on the inner wall of the column, and the lifting rod is slidably sleeved on the outside of the guide rod. This utility model allows the lifting rod to slide inside the column, enabling adjustment of the height of the top base and mounting bracket. It also allows adjustment of the height of the sound pressure detection sensor fixed inside the mounting bracket according to the sound emission position of the object to be detected, bringing the sound pressure detection sensor closer to the sound emission position of the object to be detected, thereby improving the accuracy of sound pressure detection.

Description

Technical Field

[0001] This utility model relates to the field of sound pressure detection technology, and in particular to a high-precision sound pressure detection module. Background Technology

[0002] A sound pressure level detector (SPR) is an instrument used to measure sound pressure (pressure fluctuations generated by sound in a medium). It is widely used in noise monitoring, industrial testing, acoustic research and other fields. The SPR converts the pressure changes of sound waves into electrical signals through sensors (such as microphones or piezoelectric elements), and after amplification and processing, outputs a quantifiable sound pressure level (usually in decibels dB).

[0003] The existing sound pressure detection modules have the following drawbacks in practical use:

[0004] In existing sound pressure detection modules, if the sound pressure detection sensor has a fixed height and angle when detecting the sound pressure of the object being detected, it is not convenient to adjust the height and angle of the sound pressure detection sensor according to the location of the object. After fixing the sound pressure detection sensor module, there is a problem that the sound pressure detection sensor is too far away from the object being detected, which will reduce the accuracy of sound pressure detection. Utility Model Content

[0005] In the existing technology, when the sound pressure detection module is at a fixed height and angle, it is not convenient to adjust the height and angle of the sound pressure detection sensor according to the position of the object. After fixing the sound pressure detection sensor module, there is a problem that the sound pressure detection sensor is too far away from the object to be detected, which will reduce the accuracy of sound pressure detection. This utility model provides a high-precision sound pressure detection module.

[0006] The technical solution adopted by this utility model is: a high-precision sound pressure detection module, including a base, a height adjustment component, and a sound pressure detection sensor. The height adjustment component includes a column, a lifting rod, and a lead screw. The column is fixedly installed on the outer wall of the top of the base, and the lifting rod is inserted into the top of the column. The bottom end of the lead screw is rotatably connected to the outer wall of the top of the base through a bearing, and a toothed sleeve is provided on the outer wall of the lead screw. The lifting rod is threaded onto the outside of the lead screw. A guide rod is fixedly installed on the inner wall of the column, and the lifting rod is slidably sleeved onto the outside of the guide rod. Several fixing holes are opened on the outer wall of the toothed sleeve. Fixing screws are threaded into the outer wall of the column, and the threads of the fixing screws penetrate the outer wall of the column and are threaded into the inside of the fixing holes.

[0007] Furthermore, a rotating assembly is provided at the top of the lifting rod. The rotating assembly includes a top seat, a mounting frame, and a fixed cylinder. The top seat is fixedly installed at the top of the lifting rod, and the sound pressure detection sensor is fixedly installed inside the mounting frame.

[0008] Furthermore, round rods are fixedly installed on the outer walls of both sides of the mounting frame, and the mounting frame is rotatably connected to the inside of the top seat through the round rods.

[0009] Furthermore, a fixing cylinder is fixedly installed on the outer wall of one side of the top seat, and a circular plate is slidably connected inside the fixing cylinder.

[0010] Furthermore, a plug rod is fixedly installed on the outer wall of the circular plate, and a number of insertion holes are opened on the outer wall of one side of the mounting bracket in an equidistant structure, and the plug rod is inserted into the inside of the insertion hole.

[0011] Furthermore, a pull ring is fixedly installed on the outer wall of one side of the circular plate, and the pull ring extends to the outside of the fixed cylinder.

[0012] Furthermore, a spring connected to the circular plate is provided on the inner wall of the fixed cylinder, and the spring is sleeved on the outside of the pull ring.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model, through a height adjustment component, enables the lifting rod to slide inside the column, allowing adjustment of the height of the top seat and mounting bracket. It also allows adjustment of the height of the sound pressure detection sensor fixed inside the mounting bracket according to the sound emission position of the object to be detected, thus bringing the sound pressure detection sensor closer to the sound emission position of the object to be detected and improving the accuracy of sound pressure detection.

[0015] 2. Secondly, this utility model, through the rotating component, can rotate the mounting bracket and the sound pressure detection sensor fixed inside the mounting bracket, thereby adjusting the angle of the sound pressure detection sensor. When used in conjunction with the height adjustment component, the position of the sound pressure detection sensor can be flexibly adjusted so that the sound pressure detection sensor is positioned at the sound-emitting location of the object to be detected, which can improve the sound pressure detection accuracy and avoid the problem that the sound pressure detection accuracy is affected by the distance between the sound pressure detection sensor and the sound-emitting location of the object to be detected being too far. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the entire utility model;

[0017] Figure 2 This is a sectional perspective view of the present invention;

[0018] Figure 3 This is a perspective view of the mounting bracket of this utility model;

[0019] Figure 4 This is a perspective view of the fixed cylinder of this utility model.

[0020] The components in the diagram are labeled as follows: 1. Base; 2. Height adjustment assembly; 201. Column; 202. Lifting rod; 203. Lead screw; 204. Gear sleeve; 205. Fixing screw; 206. Fixing hole; 207. Guide rod; 3. Rotating assembly; 301. Top seat; 302. Mounting bracket; 303. Round rod; 304. Fixing cylinder; 305. Round plate; 306. Insert rod; 307. Insertion hole; 308. Pull ring; 309. Spring; 4. Sound pressure detection sensor. Detailed Implementation

[0021] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The following is in conjunction with the appendix Figures 1-4 The present invention will be further described below.

[0024] To address the problems existing in the background technology, this application proposes the following technical solution: a high-precision sound pressure detection module.

[0025] The specific technical solution includes a base 1, a height adjustment assembly 2, and a sound pressure detection sensor 4. The height adjustment assembly 2 includes a column 201, a lifting rod 202, and a lead screw 203. The column 201 is fixedly installed on the outer wall of the top of the base 1, and the lifting rod 202 is inserted into the top of the column 201. The bottom end of the lead screw 203 is rotatably connected to the outer wall of the top of the base 1 via a bearing, and a toothed sleeve 204 is provided on the outer wall of the lead screw 203. The lifting rod 202 is threaded onto the outside of the lead screw 203. A guide rod 207 is fixedly installed on the inner wall, and a lifting rod 202 is slidably sleeved on the outside of the guide rod 207. Several fixing holes 206 are opened on the outer wall of the toothed sleeve 204. A fixing screw 205 is threaded into the outer wall of the column 201, and the fixing screw 205 is threaded through the outer wall of the column 201 and then threaded into the inside of the fixing hole 206. The height adjustment component 2 is used to adjust the height of the sound pressure detection sensor 4, and can adjust the height of the sound pressure detection sensor 4 according to the height of the object to be detected.

[0026] In specific implementations, such as Figure 1 , 3 and Figure 4 As shown, a rotating assembly 3 is provided at the top of the lifting rod 202. The rotating assembly 3 includes a top seat 301, a mounting bracket 302, and a fixed cylinder 304. The top seat 301 is fixedly installed at the top of the lifting rod 202, and the sound pressure detection sensor 4 is fixedly installed inside the mounting bracket 302. The rotating assembly 3 is used to adjust the angle of the sound pressure detection sensor 4, which can rotate the sound pressure detection sensor 4 to the location of the object to be detected, thereby improving the sound pressure detection accuracy of the object to be detected.

[0027] Furthermore, round rods 303 are fixedly installed on the outer walls of both sides of the mounting bracket 302, and the mounting bracket 302 is rotatably connected to the inside of the top seat 301 through the round rods 303. When the mounting bracket 302 rotates, it will drive the sound pressure detection sensor 4 fixed inside the mounting bracket 302 to rotate.

[0028] Furthermore, a fixing cylinder 304 is fixedly installed on the outer wall of one side of the top seat 301, and a circular plate 305 is slidably connected inside the fixing cylinder 304. The fixing cylinder 304 is used to fix the mounting bracket 302.

[0029] Furthermore, a plug rod 306 is fixedly installed on the outer wall of the circular plate 305, and several plug holes 307 are opened on one side of the outer wall of the mounting bracket 302 in an equidistant structure. The plug rod 306 is inserted into the inside of the plug hole 307, which can fix the mounting bracket 302 and prevent the mounting bracket 302 from rotating.

[0030] Furthermore, a pull ring 308 is fixedly installed on the outer wall of one side of the circular plate 305, and the pull ring 308 extends to the outside of the fixed cylinder 304. The circular plate 305 and the insertion rod 306 can be moved by the pull ring 308.

[0031] Furthermore, a spring 309 connected to the circular plate 305 is provided on the inner wall of the fixed cylinder 304, and the spring 309 is sleeved on the outside of the pull ring 308. The elastic force of the spring 309 can push the circular plate 305 and the insertion rod 306 to move.

[0032] To ensure that those skilled in the art can fully understand the technical solution, this application provides the following overall overview:

[0033] In use, rotating the gear sleeve 204 drives the lead screw 203 to rotate, which in turn causes the lifting rod 202 to move the top seat 301 up and down. This allows the height of the sound pressure sensor 4 to be adjusted according to the sound-emitting position of the object being detected. The fixing screw 205, threaded through the outer wall of the column 201 and then threaded into the fixing hole 206, secures the gear sleeve 204, preventing it from causing the lead screw 203 to rotate. This also prevents the lifting rod 202 from descending on its own due to the lead screw 203's rotation. Pulling the pull ring 308 moves the insertion rod 306 out of the insertion hole 307. Rotating the mounting... The mounting bracket 302 drives the sound pressure detection sensor 4 to adjust its angle. When the pull ring 308 is released, the spring force of the spring 309 can push the circular plate 305 and the insertion rod 306 to move, so that the insertion rod 306 is inserted into the insertion hole 307, which can fix the mounting bracket 302. The height adjustment component 2 works in conjunction with the rotation component 3 to adjust the sound pressure detection sensor 4 to the sound-emitting position of the object to be detected. This can avoid the problem that the sound pressure detection accuracy is affected by the distance between the sound pressure detection sensor 4 and the sound-emitting position of the object to be detected being too far, thus achieving high-precision sound pressure detection.

[0034] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0035] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A high-precision sound pressure detection module, characterized in that, The system includes a base (1), a height adjustment assembly (2), and a sound pressure detection sensor (4). The height adjustment assembly (2) includes a column (201), a lifting rod (202), and a lead screw (203). The column (201) is fixedly mounted on the outer wall of the top of the base (1), and the lifting rod (202) is inserted into the top of the column (201). The bottom end of the lead screw (203) is rotatably connected to the outer wall of the top of the base (1) through a bearing, and a toothed sleeve (204) is provided on the outer wall of the lead screw (203). The rod (202) is threaded onto the outside of the lead screw (203). A guide rod (207) is fixedly installed on the inner wall of the column (201), and the lifting rod (202) is slidably sleeved on the outside of the guide rod (207). Several fixing holes (206) are opened on the outer wall of the toothed sleeve (204). A fixing screw (205) is threaded into the outer wall of the column (201), and the fixing screw (205) is threaded through the outer wall of the column (201) and then threaded into the inside of the fixing hole (206).

2. The high-precision sound pressure detection module according to claim 1, characterized in that, The top of the lifting rod (202) is provided with a rotating component (3), which includes a top seat (301), a mounting bracket (302) and a fixed cylinder (304). The top seat (301) is fixedly installed at the top of the lifting rod (202), and the sound pressure detection sensor (4) is fixedly installed inside the mounting bracket (302).

3. The high-precision sound pressure detection module according to claim 2, characterized in that, The mounting bracket (302) has round rods (303) fixedly installed on the outer walls on both sides, and the mounting bracket (302) is rotatably connected to the inside of the top seat (301) through the round rods (303).

4. The high-precision sound pressure detection module according to claim 3, characterized in that, A fixing cylinder (304) is fixedly installed on the outer wall of one side of the top seat (301), and a circular plate (305) is slidably connected inside the fixing cylinder (304).

5. The high-precision sound pressure detection module according to claim 4, characterized in that, A plug rod (306) is fixedly installed on the outer wall of the circular plate (305), and a number of plug holes (307) are opened on the outer wall of one side of the mounting bracket (302) in an equidistant structure, and the plug rod (306) is inserted into the inside of the plug hole (307).

6. A high-precision acoustic pressure detection module according to claim 5, characterized in that, A pull ring (308) is fixedly provided on the outer wall of one side of the circular plate (305), and the pull ring (308) extends to the outside of the fixed cylinder (304).

7. A high-precision acoustic pressure detection module according to claim 6, characterized in that, The inner wall of the fixed cylinder (304) is provided with a spring (309) connected to the circular plate (305), and the spring (309) is sleeved on the outside of the pull ring (308).

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