A vehicle acceleration exterior noise test tool

Abstract

The utility model relates to the field of noise testing tooling, and in particular to a vehicle acceleration external noise testing tooling, comprising a bottom plate, a fixing rod fixedly connected to the upper end of the bottom plate, a support plate connected to the upper end of the fixing rod through a lifting assembly, a laser displacement sensor fixedly connected to the upper end of the support plate, an acoustic sensor fixedly connected to the upper end of the extension plate, a support sleeve connected to the lifting assembly by cooperating with the support plate through a connecting assembly, a fixing seat fixedly connected to the circumferential surface of the support sleeve, a rotating block rotatably connected to the interior of the fixing seat, a supporting leg fixedly connected to the lower end of the rotating block, a fixing shell slidably connected to the outer surface of the supporting leg, a fastener threadedly connected to one side of the fixing shell, and a base rotatably connected to the lower end of the fixing shell. The utility model can support the overall equipment more stably on the ground, so that the acoustic sensor can test the noise of the vehicle acceleration more stably.

Description

Technical Field

[0001] The utility model relates to the field of noise testing tools, in particular to a tool for testing the noise outside a vehicle when the vehicle is accelerating. Background Art

[0002] At present, in the process of automobile noise testing, the noise measuring equipment is placed in the noise testing site. As the car accelerates, airflow is generated. These airflows can easily cause the bracket supporting the test equipment to topple over. Therefore, it is necessary to design a tool for testing the exterior noise of an accelerated car. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a tool for testing the noise outside the vehicle when the vehicle is accelerating.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a vehicle acceleration driving exterior noise test tool, comprising a bottom plate, a fixing rod is fixedly connected to the upper end of the bottom plate, the upper end of the fixing rod is connected to a support plate through a lifting assembly, the upper end of the support plate is fixedly connected to a laser displacement sensor, the rear end of the support plate is fixedly connected to an extension plate, the upper end of the extension plate is fixedly connected to an acoustic sensor, the circumferential surface of the fixing rod is slidably connected to a support sleeve, the support sleeve is connected to the support plate through a connecting assembly, and the support sleeve is connected to the lifting assembly through the connecting assembly and the support plate, the circumferential surface of the support sleeve is connected to a support mechanism, the support mechanism comprises a fixed seat, a rotating block, a support leg, a fixed shell, a fastener and a base, the circumferential surface of the support sleeve is fixedly connected to the fixing seat, the interior of the fixing seat is rotatably connected to a rotating block, the lower end of the rotating block is fixedly connected to a support leg, the outer surface of the support leg is slidably connected to a fixing shell, one side of the fixing shell is threadedly connected to a fastener, and the fastener is used to squeeze the support leg, and the lower end of the fixing shell is rotatably connected to the base.

[0005] Furthermore, the lifting assembly includes a motor, a threaded rod, a movable seat and a movable rod, the upper end of the base is fixedly connected to the motor, the motor is located in the fixed rod, the fixed rod is rotatably connected to the threaded rod inside, the output shaft end of the motor is fixedly connected to the threaded rod, the circumferential surface of the threaded rod is threadedly connected to the movable seat, the upper end of the movable seat is fixedly connected to a plurality of movable rods, the plurality of movable rods all penetrate the fixed rod upward and are slidably connected to the fixed rod, and the plurality of movable rods are fixedly mounted on the bottom end of the support plate.

[0006] Furthermore, the connecting assembly includes a connecting rod and an ear plate, the circumferential surface of the support sleeve is fixedly connected to the ear plate, the upper end of the ear plate is fixedly connected to the connecting rod, and the connecting rod is fixedly installed on the bottom end of the support plate.

[0007] Furthermore, a wireless transmitter is fixedly connected to the top of the support plate, and an input end of the wireless transmitter is electrically connected to the laser displacement sensor and the acoustic sensor respectively, and is used to transmit test data to a receiving end.

[0008] Furthermore, the base, the rotating block, the fixed seat, the supporting leg, the fixed shell and the fastener are each provided in three pieces and are evenly distributed around the supporting sleeve.

[0009] Furthermore, the lower end surfaces of the plurality of bases and the bottom plate are provided with anti-slip grooves.

[0010] The utility model has the following beneficial effects:

[0011] Compared with the prior art, this tooling for testing the exterior noise of an automobile when accelerating, controls the operation of the lifting assembly to raise the height of the support plate while, with the cooperation of the connecting assembly, drives the support sleeve to rise, thereby driving the support mechanism to adjust the height. At this time, when the support mechanism is supported on the ground, the supported height gradually increases, and the supported area can also be gradually expanded, so that the support mechanism can support the ground more stably, so that the fixed rod can drive the support plate to be stably supported on the ground. In addition, when the height of the support plate is no longer adjusted, the support area can be changed by only adjusting the relative displacement of the support leg and the fixed shell, and then by adjusting the distance between the base and the fixed rod, so that the overall equipment is stably located on the ground, so that the acoustic sensor can test the noise of the automobile when accelerating more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of a vehicle acceleration exterior noise test tooling proposed by the utility model;

[0013] Figure 2 This is a schematic diagram of the overall structure of a rear-view of a vehicle acceleration exterior noise test tooling proposed by the utility model;

[0014] Figure 3 A vehicle acceleration noise test tool proposed by the utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0015] Figure 4 This is a structural schematic diagram of a vehicle acceleration exterior noise test tooling proposed by the utility model, with a partial section viewed from the right;

[0016] Figure 5 A vehicle acceleration noise test tool proposed by the utility model Figure 4 Schematic diagram of the enlarged structure of B.

[0017] Legend:

[0018] 1. Bottom plate; 2. Fixed rod; 3. Connecting rod; 4. Support plate; 5. Extension plate; 6. Acoustic sensor; 7. Laser displacement sensor; 8. Wireless transmitter; 9. Base; 10. Fixed shell; 11. Support leg; 12. Fixed seat; 13. Ear plate; 14. Fastener; 15. Motor; 16. Moving seat; 17. Moving rod; 18. Support sleeve; 19. Rotating block; 20. Threaded rod. DETAILED DESCRIPTION

[0019] Reference Figure 1-5The utility model provides a vehicle acceleration driving exterior noise test tool, comprising a bottom plate 1, the upper end of the bottom plate 1 is fixedly connected to a fixing rod 2, the upper end of the fixing rod 2 is connected to a supporting plate 4 through a lifting assembly, the upper end of the supporting plate 4 is fixedly connected to a laser displacement sensor 7, the rear end of the supporting plate 4 is fixedly connected to an extension plate 5, the upper end of the extension plate 5 is fixedly connected to an acoustic sensor 6, the circumferential surface of the fixing rod 2 is slidably connected to a supporting sleeve 18, the supporting sleeve 18 is connected to the supporting plate 4 through a connecting assembly, and the supporting sleeve 18 is connected to the lifting assembly by cooperating with the supporting plate 4 through the connecting assembly. Then, the circumferential surface of the support sleeve 18 is connected to a support mechanism, which includes a fixed seat 12, a rotating block 19, a support leg 11, a fixed shell 10, a fastener 14 and a base 9. The circumferential surface of the support sleeve 18 is fixedly connected to the fixed seat 12, the interior of the fixed seat 12 is rotatably connected to the rotating block 19, the lower end of the rotating block 19 is fixedly connected to the support leg 11, the outer surface of the support leg 11 is slidably connected to the fixed shell 10, one side of the fixed shell 10 is threadedly connected to the fastener 14, and the fastener 14 is used to squeeze the support leg 11, and the lower end of the fixed shell 10 is rotatably connected to the base 9. During operation, after moving the entire device to the test site, the height of the support plate 4 is adjusted according to the height of the test to be performed. Specifically, the operation of the lifting assembly can be controlled to drive the support plate 4 to move up and down. At this time, with the cooperation of the connecting assembly, the support sleeve 18 can be driven to adjust the height, and then the support mechanism can be driven to adjust the height. As the height of the support plate 4 is adjusted higher and higher, the support mechanism is in a higher position. At this time, the fasteners 14 are loosened to move it away from the support legs 11, and the relative displacement of the fixed shell 10 and the support legs 11 can be adjusted along the support legs 11. After the base 9 is supported on the ground, the fasteners 14 are tightened to squeeze the support legs 11 tightly. At this time, the support legs 11 can be firmly located on the fixed shell 10. In the fixed shell 10, the area supported by the support mechanism is enlarged, so that as the height of the support plate 4 is adjusted higher, the supported area will also be adjusted larger, and thus more stable. When the height of the support plate 4 is no longer adjusted, the support area can be changed by adjusting the relative displacement between the support legs 11 and the fixed shell 10, and then by adjusting the distance between the base 9 and the fixed rod 2, so that the entire device is stably located on the ground, so that the sound sensor 6 can be used to stably test the noise generated by the accelerated driving of the car. During the test, the laser displacement sensor 7 is used to test the height of the sound sensor 6, so that the noise conditions of the car during accelerated driving at different heights can be accurately tested.

[0020] Furthermore, the lifting assembly includes a motor 15, a threaded rod 20, a moving seat 16 and a moving rod 17. The upper end of the base 9 is fixedly connected with the motor 15, the motor 15 is located in the fixed rod 2, the fixed rod 2 is internally rotatably connected with the threaded rod 20, the output shaft end of the motor 15 is fixedly connected with the threaded rod 20, the circumferential surface of the threaded rod 20 is threadedly connected with the moving seat 16, and the upper end of the moving seat 16 is fixedly connected with a plurality of moving rods 17, the plurality of moving rods 17 all penetrate the fixed rod 2 upward and are slidably connected to the fixed rod 2, and the plurality of moving rods 17 are fixedly installed at the bottom end of the support plate 4. When working, the operation of the motor 15 can drive the threaded rod 20 to rotate, and at this time the moving seat 16 will drive the moving rod 17 to be lifted and lowered along the fixed rod 2, and then drive the support plate 4 to be adjusted in height, and finally complete the height adjustment of the acoustic sensor 6 and the laser displacement sensor 7, so as to test the noise of the car during acceleration at different heights.

[0021] Further, the connecting assembly includes a connecting rod 3 and an ear plate 13, the circumferential surface of the support sleeve 18 is fixedly connected with the ear plate 13, the upper end of the ear plate 13 is fixedly connected with the connecting rod 3, and the connecting rod 3 is fixedly installed at the bottom end of the support plate 4. During operation, when the support plate 4 is raised and lowered, the connecting rod 3 is driven to be raised and lowered, and then the support sleeve 18 is driven to be raised and lowered with the cooperation of the ear plate 13, and finally the support height of the support mechanism is changed.

[0022] Furthermore, a wireless transmitter 8 is fixedly connected to the top of the support plate 4, and the input end of the wireless transmitter 8 is electrically connected to the laser displacement sensor 7 and the acoustic sensor 6, respectively, and is used to transmit the test data to the receiving end. When working, the wireless transmitter 8 is connected to the receiving end on the data acquisition system, so that the data collected by the acoustic sensor 6 and the laser displacement sensor 7 can be directly transmitted in real time.

[0023] Furthermore, the base 9, the rotating block 19, the fixing seat 12, the supporting leg 11, the fixing shell 10 and the fastener 14 are all provided in three pieces, and are evenly distributed around the supporting sleeve 18. When working, the whole device can be supported on the ground more stably, and when the whole device is close to the car, even if the car accelerates, the airflow generated is not easy to cause the whole device to fall.

[0024] Furthermore, the lower end surfaces of the plurality of bases 9 and the bottom plate 1 are all provided with anti-skid patterns, so that the bases 9 and the bottom plate 1 can be more stably placed on the ground during operation.

[0025] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle acceleration exterior noise test tool, comprising a bottom plate (1), characterized in that: The upper end of the base plate (1) is fixedly connected to a fixing rod (2), the upper end of the fixing rod (2) is connected to a supporting plate (4) via a lifting assembly, the upper end of the supporting plate (4) is fixedly connected to a laser displacement sensor (7), the rear end of the supporting plate (4) is fixedly connected to an extension plate (5), the upper end of the extension plate (5) is fixedly connected to an acoustic sensor (6), the circumferential surface of the fixing rod (2) is slidably connected to a supporting sleeve (18), the supporting sleeve (18) is connected to the supporting plate (4) via a connecting assembly, and the supporting sleeve (18) is connected to the lifting assembly by cooperating with the supporting plate (4) via the connecting assembly, and the circumferential surface of the supporting sleeve (18) is connected to a supporting mechanism The support mechanism comprises a fixed seat (12), a rotating block (19), a support leg (11), a fixed shell (10), a fastener (14) and a base (9); the circumferential surface of the support sleeve (18) is fixedly connected to the fixed seat (12); the interior of the fixed seat (12) is rotatably connected to the rotating block (19); the lower end of the rotating block (19) is fixedly connected to the support leg (11); the outer surface of the support leg (11) is slidably connected to the fixed shell (10); one side of the fixed shell (10) is threadedly connected to the fastener (14), and the fastener (14) is used to squeeze the support leg (11); the lower end of the fixed shell (10) is rotatably connected to the base (9).

2. The vehicle acceleration exterior noise testing tool according to claim 1, characterized in that: The lifting assembly comprises a motor (15), a threaded rod (20), a movable seat (16) and a movable rod (17); the upper end of the base (9) is fixedly connected with the motor (15); the motor (15) is located in the fixed rod (2); the fixed rod (2) is rotatably connected with the threaded rod (20); the output shaft end of the motor (15) is fixedly connected with the threaded rod (20); the circumferential surface of the threaded rod (20) is threadedly connected with the movable seat (16); the upper end of the movable seat (16) is fixedly connected with a plurality of movable rods (17); the plurality of movable rods (17) all penetrate the fixed rod (2) upward and are slidably connected to the fixed rod (2); the plurality of movable rods (17) are fixedly mounted on the bottom end of the support plate (4).

3. The vehicle acceleration exterior noise testing tool according to claim 1, characterized in that: The connecting assembly comprises a connecting rod (3) and an ear plate (13); the circumferential surface of the support sleeve (18) is fixedly connected to the ear plate (13); the upper end of the ear plate (13) is fixedly connected to the connecting rod (3); and the connecting rod (3) is fixedly mounted on the bottom end of the support plate (4).

4. The vehicle acceleration exterior noise testing tool according to claim 1, characterized in that: A wireless transmitter (8) is fixedly connected to the top of the support plate (4); the input end of the wireless transmitter (8) is electrically connected to the laser displacement sensor (7) and the acoustic sensor (6) respectively, and is used to transmit test data to the receiving end.

5. The vehicle acceleration exterior noise testing tool according to claim 1, characterized in that: The base (9), the rotating block (19), the fixed seat (12), the supporting leg (11), the fixed shell (10) and the fastener (14) are each provided in three pieces and are evenly distributed around the supporting sleeve (18).

6. The vehicle acceleration exterior noise testing tool according to claim 1, characterized in that: The lower end surfaces of the plurality of bases (9) and the bottom plate (1) are all provided with anti-slip grooves.

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