Microphone fixing mechanism for in-vehicle noise test

Abstract

The utility model provides a microphone fixing mechanism for in-vehicle noise test, which comprises a device body, the device body comprises an adjusting mechanism, the free end of the adjusting mechanism is respectively provided with a first clamping mechanism and a second clamping mechanism, the first clamping mechanism is used for clamping a microphone, and the second clamping mechanism is used for clamping a microphone. The second clamping mechanism is clamped and fixed with the headrest bracket; the adjusting mechanism is provided with a plurality of bolt holes, and bolts penetrate through the corresponding bolt holes to adjust the position of the microphone relative to the headrest support. According to the utility model, by arranging the first clamping mechanism, the second clamping mechanism and the adjusting mechanism fixed with the first clamping mechanism and the second clamping mechanism, the microphone for testing the noise in the vehicle can be adjustably fixed on the headrest bracket of the seat, and the defects existing when the microphone is fixed by an adhesive tape or an elastic rope are avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of in-vehicle noise testing equipment, and specifically to a microphone fixing mechanism for in-vehicle noise testing. Background Technology

[0002] In the current field of in-vehicle noise testing technology, the commonly used method for fixing microphones is to install them on the side of the seat headrest using tape or elastic rope.

[0003] However, practical experience has revealed a series of drawbacks to the method of securing the microphone with tape or elastic cord, such as:

[0004] 1. Because the microphone is in direct contact with the seat headrest, relative movement between the two is inevitable during daily use, resulting in friction. This friction interferes with the microphone's normal perception and collection of in-vehicle noise, causing the test results to deviate from the actual situation and fail to accurately reflect the noise level inside the vehicle.

[0005] 2. When conducting two different noise tests on the same vehicle, it is difficult to ensure that the microphone is installed in exactly the same position each time due to the need to disassemble and reinstall it. Even slight differences in position can significantly affect the noise sampling results. Because the noise distribution in different locations inside the vehicle is not uniform, changes in the microphone position will lead to differences in the collected noise samples, making the two test results incomparable and unable to provide a reliable basis for evaluating the vehicle's noise performance.

[0006] 3. When a car is driving on a bumpy road, the vehicle body will experience significant vibration and shaking. Under such conditions, microphones secured by tape or elastic ropes are prone to shifting position and may even detach from their original location, making it impossible to accurately collect noise data from the intended location.

[0007] Therefore, it is crucial to design a microphone mounting fixture with a simple structure. Utility Model Content

[0008] To address the aforementioned technical problems, this utility model provides a microphone fixing mechanism for in-vehicle noise testing, comprising a device body, wherein the device body includes an adjustment mechanism, and the free end of the adjustment mechanism is respectively provided with a first clamping mechanism and a second clamping mechanism, wherein:

[0009] The first clamping mechanism is used to clamp the microphone;

[0010] The second clamping mechanism is clamped and fixed to the headrest bracket;

[0011] The adjustment mechanism is provided with several bolt holes, and the position of the microphone relative to the headrest bracket is adjusted by passing bolts through the corresponding bolt holes.

[0012] Furthermore, the device body has an L-shaped structure.

[0013] Furthermore, the adjustment mechanism includes a first adjustment component and a second adjustment component, with the two ends of the first adjustment component and the second adjustment component being vertically fixed.

[0014] Furthermore, the free end of the first adjustment component is provided with the first clamping mechanism, and the free end of the second adjustment component is provided with the second clamping mechanism.

[0015] Furthermore, both the first adjustment component and the second adjustment component include nested sleeves and plastic tubes. The sleeves and the plastic tubes are provided with bolt holes of equal diameter. A plurality of equally spaced bolt holes are provided along the length direction of the plastic tube. The position of the microphone relative to the headrest bracket is adjusted by passing bolts through the bolt holes at corresponding positions on the sleeves and the plastic tubes.

[0016] Furthermore, the first clamping mechanism includes a first hard plastic plate and a second hard plastic plate disposed opposite to each other, wherein:

[0017] The first rigid plastic plate is fixed to the free end of the first adjusting component;

[0018] The first hard plastic plate and the second hard plastic plate are connected by bolts, and the distance between the first hard plastic plate and the second hard plastic plate is reduced by tightening the bolts to clamp the microphone.

[0019] Furthermore, the contact surfaces of the first hard plastic plate, the second hard plastic plate, and the microphone are provided with opposing arc-shaped grooves to secure the microphone.

[0020] Furthermore, the contact surfaces of the first hard plastic plate, the second hard plastic plate, and the microphone are provided with anti-slip rubber pads.

[0021] Furthermore, the second clamping mechanism includes a third hard plastic plate and a fourth hard plastic plate disposed opposite to each other, wherein:

[0022] The third rigid plastic plate is fixed to the free end of the second adjustment component;

[0023] The third hard plastic plate and the fourth hard plastic plate are movably connected by bolts, and by tightening the bolts, the gap between the third hard plastic plate and the fourth hard plastic plate is reduced to secure them to the headrest bracket.

[0024] Furthermore, the contact surfaces of the third and fourth hard plastic plates that hold the headrest bracket are provided with wavy serrations.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] This utility model, by setting a first clamping mechanism, a second clamping mechanism, and an adjustment mechanism fixed to both, enables the microphone used for in-vehicle noise testing to be adjusted and fixed to the headrest bracket of the seat, so that the microphone is fixed without contacting the headrest, avoiding the defects of fixing the microphone with tape or elastic rope. Attached Figure Description

[0027] Figure 1 This is a front view of an embodiment of the present utility model;

[0028] Figure 2 This is a top view of an embodiment of the present utility model;

[0029] Figure 3 This is a side view of an embodiment of the present utility model.

[0030] In the picture:

[0031] 100. First adjustment component; 110. First clamping mechanism; 111. First rigid plastic plate; 112. Second rigid plastic plate;

[0032] 200. Second adjustment component; 210. Second clamping mechanism; 211. Third hard plastic plate; 212. Fourth hard plastic plate. Detailed Implementation

[0033] To make the technical solutions and effects of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0034] The present invention aims to provide a microphone fixing mechanism for in-vehicle noise testing, which solves the defects of existing microphone fixing methods using tape or elastic rope.

[0035] Please see Figure 1-3 The microphone fixing mechanism for in-vehicle noise testing mainly includes the device body, which has an L-shaped structure.

[0036] The device body includes an adjustment mechanism, and the free end of the adjustment mechanism is respectively provided with a first clamping mechanism 110 and a second clamping mechanism 210, wherein the first clamping mechanism 110 is used to clamp the microphone; the second clamping mechanism 210 is clamped and fixed with the headrest bracket.

[0037] The adjustment mechanism has several bolt holes, and the position of the microphone relative to the headrest bracket is adjusted by passing bolts through the corresponding bolt holes.

[0038] In a further embodiment, the adjustment mechanism includes a first adjustment component 100 and a second adjustment component 200, with the two ends of the first adjustment component 100 and the second adjustment component 200 being vertically fixed.

[0039] Both the first adjustment component 100 and the second adjustment component 200 include nested sleeves and plastic tubes. The sleeves and plastic tubes are provided with bolt holes of equal diameter, and a number of equally spaced bolt holes are provided along the length of the plastic tube. The position of the microphone relative to the headrest bracket is adjusted by passing bolts through the corresponding bolt holes in the sleeves and plastic tubes.

[0040] First, the first adjustment component 100 disclosed in this embodiment will be described.

[0041] The free end of the first adjustment component 100 is provided with a first clamping mechanism 110, which is used to clamp the microphone.

[0042] The first adjustment assembly 100 includes a first sleeve and a first plastic tube.

[0043] The first plastic tube is embedded in the hollow inner cavity of the first sleeve. The first sleeve and the first plastic tube are provided with bolt holes of the same diameter, and at least two bolt holes are provided along the length of the first plastic tube. The height of the first clamping mechanism is adjusted by passing bolts through the corresponding bolt holes of the first sleeve and the first plastic tube.

[0044] In one specific embodiment, the first sleeve has a diameter of 21mm, the first plastic tube has a diameter of 20mm, the first plastic tube has a length of 500mm, and 20 bolt holes are spaced apart along the length of the first plastic tube.

[0045] In use, the first plastic tube is inserted into the first sleeve. Depending on the vehicle model, different bolt holes can be used to adjust the height of the first plastic tube relative to the first sleeve, that is, to adjust the height of the microphone.

[0046] Next, the second adjustment component 200 disclosed in this embodiment will be described.

[0047] The free end of the second adjustment component 200 is provided with a second clamping mechanism 210, which clamps and fixes the headrest bracket.

[0048] The second adjustment assembly 200 includes a second sleeve and a second plastic tube.

[0049] The second plastic tube is embedded in the hollow inner cavity of the second sleeve. The second sleeve and the second plastic tube are provided with bolt holes of the same diameter, and at least two bolt holes are provided along the length of the second plastic tube. The height of the second clamping mechanism is adjusted by passing bolts through the bolt holes at corresponding positions of the second sleeve and the second plastic tube.

[0050] In one specific embodiment, the second sleeve has a diameter of 21 mm; the second plastic tube has a diameter of 20 mm and a length of 500 mm, and 20 bolt holes are spaced apart along the length of the second plastic tube.

[0051] When in use, the second plastic tube is inserted into the second sleeve. Depending on the vehicle model, different bolt holes can be used to adjust the extension length of the second plastic tube relative to the second sleeve, that is, to adjust the position of the microphone relative to the seat headrest.

[0052] Finally, the first clamping mechanism 110 and the second clamping mechanism 210 disclosed in this embodiment will be described.

[0053] The first clamping mechanism 110 includes a first hard plastic plate 111 and a second hard plastic plate 112 disposed opposite to each other.

[0054] The first rigid plastic plate 111 is fixed to the free end of the first adjusting component 100.

[0055] The first hard plastic plate 111 and the second hard plastic plate 112 are connected by bolts, and the distance between the first hard plastic plate 111 and the second hard plastic plate 112 is reduced by tightening the bolts to clamp the microphone.

[0056] Preferably, the contact surfaces of the first hard plastic plate 111 and the second hard plastic plate 112 with the microphone are provided with corresponding arc-shaped grooves to stabilize the microphone.

[0057] Preferably, the contact surfaces of the first hard plastic plate 111 and the second hard plastic plate 112 with the microphone are provided with anti-slip rubber pads.

[0058] The second clamping mechanism 210 includes a third hard plastic plate 211 and a fourth hard plastic plate 212 disposed opposite to each other.

[0059] The third rigid plastic plate 211 is fixed to the free end of the second adjustment component 200.

[0060] The third hard plastic plate 211 and the fourth hard plastic plate 212 are connected by bolts, and the gap between the third hard plastic plate 211 and the fourth hard plastic plate 212 is reduced by tightening the bolts to secure them to the headrest bracket.

[0061] Preferably, the contact surfaces of the third hard plastic plate 211 and the fourth hard plastic plate 212 that hold the headrest bracket are provided with wavy teeth to enhance the clamping stability.

[0062] This device allows the microphone used for in-vehicle noise testing to be fixed in position, and it will not rub against the headrest during the test, thus preventing interference. At the same time, the device is adjustable and suitable for most vehicle models.

[0063] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A microphone fixing mechanism for in-vehicle noise testing, characterized in that, The device includes a main body, which includes an adjustment mechanism. The free ends of the adjustment mechanism are respectively provided with a first clamping mechanism (110) and a second clamping mechanism (210), wherein: The first clamping mechanism (110) is used to clamp the microphone; The second clamping mechanism (210) is clamped and fixed to the headrest bracket; The adjustment mechanism is provided with several bolt holes, and the position of the microphone relative to the headrest bracket is adjusted by passing bolts through the corresponding bolt holes.

2. The microphone fixing mechanism for in-vehicle noise testing according to claim 1, characterized in that, The device body has an L-shaped structure.

3. The microphone fixing mechanism for in-vehicle noise testing according to claim 1, characterized in that, The adjustment mechanism includes a first adjustment component (100) and a second adjustment component (200), with the two ends of the first adjustment component (100) and the second adjustment component (200) being fixed vertically.

4. The microphone fixing mechanism for in-vehicle noise testing according to claim 3, characterized in that, The first adjustment component (100) has a first clamping mechanism (110) at its free end, and the second adjustment component (200) has a second clamping mechanism (210) at its free end.

5. The microphone fixing mechanism for in-vehicle noise testing according to claim 3, characterized in that, Both the first adjustment component (100) and the second adjustment component (200) include nested sleeves and plastic tubes. The sleeves and plastic tubes are provided with bolt holes of equal diameter. A plurality of equally spaced bolt holes are provided along the length direction of the plastic tube. The position of the microphone relative to the headrest bracket is adjusted by passing bolts through the bolt holes at corresponding positions on the sleeves and plastic tubes.

6. The microphone fixing mechanism for in-vehicle noise testing according to claim 3, characterized in that, The first clamping mechanism (110) includes a first hard plastic plate (111) and a second hard plastic plate (112) disposed opposite to each other, wherein: The first rigid plastic plate (111) is fixed to the free end of the first adjusting component (100); The first hard plastic plate (111) and the second hard plastic plate (112) are connected by bolts, and the distance between the first hard plastic plate (111) and the second hard plastic plate (112) is reduced by tightening the bolts to clamp the microphone.

7. The microphone fixing mechanism for in-vehicle noise testing according to claim 6, characterized in that, The first hard plastic plate (111), the second hard plastic plate (112) and the contact surface of the microphone are provided with opposite arc-shaped grooves to stabilize the microphone.

8. The microphone fixing mechanism for in-vehicle noise testing according to claim 6, characterized in that, The contact surfaces of the first hard plastic plate (111), the second hard plastic plate (112) and the microphone are provided with anti-slip rubber pads.

9. The microphone fixing mechanism for in-vehicle noise testing according to claim 3, characterized in that, The second clamping mechanism (210) includes a third hard plastic plate (211) and a fourth hard plastic plate (212) disposed opposite to each other, wherein: The third rigid plastic plate (211) is fixed to the free end of the second adjustment component (200); The third hard plastic plate (211) and the fourth hard plastic plate (212) are connected by bolts, and the distance between the third hard plastic plate (211) and the fourth hard plastic plate (212) is reduced by tightening the bolts to secure them to the headrest bracket.

10. The microphone fixing mechanism for in-vehicle noise testing according to claim 9, characterized in that, The contact surfaces of the third hard plastic plate (211) and the fourth hard plastic plate (212) that hold the headrest bracket are provided with wavy teeth.

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