Special jig for measuring road noise

Abstract

The utility model relates to the technical field of special tools for road noise measurement, and discloses a special tool for road noise measurement, which comprises a first guide rail table and a first scale mark, the first scale mark is arranged at the front end of the first guide rail table, and a first sliding seat is arranged on the right side of the top end of the first guide rail table. A second sliding base is arranged on the left side of the top end of the first guide rail table, the sliding groove is formed in the top end of the first guide rail table, and a first rotary knob is movably connected to the front end of the first sliding base. According to the special jig for measuring the road noise, the first guide rail table and other parts are arranged, the first sliding base and the second sliding base can be moved on the first guide rail table according to the diameter of a tire, and when the first sliding base and the second sliding base are moved to the needed positions, the first rotary knob and the second rotary knob are utilized for conveniently positioning the first sliding base and the second sliding base; therefore, the transverse distance is more convenient to adjust, and the problem that the transverse distance is inconvenient to adjust according to the width of the tire during measurement is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of special fixtures for road noise measurement, and particularly relates to a special fixture for road noise measurement. Background Technique

[0002] Tire road noise measurement refers to measuring the noise level generated by tires at different vehicle speeds and on different road surfaces by using special instruments. This measurement is mainly to ensure the safety and comfort of vehicles driving on the road. When measuring, a special fixture is needed to assist in the measurement.

[0003] According to the design of the existing special fixture for road noise measurement, it is not convenient to adjust the lateral spacing during measurement according to the width of the tire, resulting in inflexibility and inconvenience during measurement. Therefore, its structure needs to be improved.

[0004] Now, a new type of special fixture for road noise measurement is proposed to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a special fixture for road noise measurement to solve the problem that the bottle body is not convenient to adjust the lateral spacing during measurement according to the width of the tire in the above-mentioned background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A special fixture for road noise measurement, including a first guide rail platform and a first scale line. The front end of the first guide rail platform is provided with a first scale line. The right side of the top of the first guide rail platform is provided with a first sliding seat, and the left side of the top of the first guide rail platform is provided with a second sliding seat. The inside of the top of the first guide rail platform is provided with a chute. The front end of the first sliding seat is movably connected with a first knob, and the front end of the second sliding seat is movably connected with a second knob.

[0007] Preferably, the first sliding seat and the second sliding seat can slide on the top of the first guide rail platform. The first sliding seat is detachable from the first guide rail platform through the first knob, and the second sliding seat is detachable from the first guide rail platform through the second knob.

[0008] Preferably, a first mounting seat is fixedly installed on the top of the first sliding seat, and a second mounting seat is fixedly installed on the top of the second sliding seat. The right side of the first mounting seat is fixedly connected with a second guide rail platform, and one side of the second mounting seat is fixedly connected with a third guide rail platform. A fourth sliding seat is arranged on one side of the second guide rail platform, and a third sliding seat is arranged on one side of the third guide rail platform. The front end of the third sliding seat is movably connected with a third knob, and the front end of the fourth sliding seat is movably connected with a fourth knob.

[0009] Preferably, a first support seat is fixedly installed on one side of the third sliding seat. A first movable rod is disposed through the inside of the first support seat, and the first movable rod is movable inside the first support seat. A second support seat is fixedly installed on one side of the fourth sliding seat. A second movable rod is disposed through the inside of the second support seat, and the second movable rod is movable inside the second support seat.

[0010] Preferably, the third sliding seat is slidable on one side of the third guide rail table, and the fourth sliding seat is slidable on one side of the second guide rail table.

[0011] Preferably, a third mounting bracket is fixedly installed at the rear end of the first movable rod, and a microphone is placed inside the third mounting bracket.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The special jig for road noise measurement not only realizes convenient adjustment of the lateral spacing and convenient adjustment of the height, but also facilitates the adjustment of the position of the microphone;

[0013] (1) By providing a first guide rail table, a first scale line, a sliding groove, a second guide rail table, a first knob, a first sliding seat, a first mounting seat, a third guide rail table, a second sliding seat, a second knob, and a second mounting seat, according to the diameter of the tire, the first sliding seat and the second sliding seat can be respectively moved on the first guide rail table. When moving to the required position, the first knob and the second knob are used to conveniently position the first sliding seat and the second sliding seat, making the adjustment of the lateral spacing more convenient;

[0014] (2) By providing a second guide rail table, a third guide rail table, a third sliding seat, a third knob, a fourth sliding seat, and a fourth knob, when it is necessary to adjust the position up and down, the third sliding seat and the fourth sliding seat can be slid on the second guide rail table and the third guide rail table. When moving to the required height, the third knob and the fourth knob are used to fix the third sliding seat and the fourth sliding seat, making the up and down adjustment more convenient;

[0015] (3) By providing a microphone, a first support seat, a second support seat, a first movable rod, and a second movable rod, the microphone is installed in the third mounting bracket. When it is necessary to adjust the position of the microphone, the first movable rod can be telescopically moved inside the first support seat, and at the same time, the second movable rod is aligned with the center point of the tire. When adjustment is required, the second movable rod can also be moved inside the second support seat. Because there are scales on the outside, it is convenient to adjust the distance more precisely and accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front cross-sectional structural view of the present utility model;

[0017] Figure 2 is a top view structural view of the connection manner between the microphone and the third mounting bracket of the present utility model;

[0018] Figure 3 This is a front view structural schematic diagram of the connection mode between the first sliding seat and the first guide rail platform of the present utility model;

[0019] Figure 4 This is a side view structural schematic diagram of the connection mode between the second mounting seat and the second sliding seat of the present utility model.

[0020] In the figure: 1. First guide rail platform; 2. First scale line; 3. Chute; 4. Second guide rail platform; 5. First knob; 6. First sliding seat; 7. First mounting seat; 8. Third guide rail platform; 9. Second sliding seat; 10. Second knob; 11. Second mounting seat; 12. Third sliding seat; 13. Microphone; 14. Third knob; 15. First movable rod; 16. Fourth sliding seat; 17. Second movable rod; 18. Fourth knob; 19. First support seat; 20. Second support seat; 21. Third mounting bracket. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1: Please refer to Figures 1-4 , a special fixture for road noise measurement, including a first guide rail platform 1 and a first scale line 2. The front end of the first guide rail platform 1 is provided with a first scale line 2. The right side of the top end of the first guide rail platform 1 is provided with a first sliding seat 6. The left side of the top end of the first guide rail platform 1 is provided with a second sliding seat 9. The inside of the top end of the first guide rail platform 1 is provided with a chute 3. The front end of the first sliding seat 6 is movably connected with a first knob 5. The front end of the second sliding seat 9 is movably connected with a second knob 10;

[0023] The first sliding seat 6 and the second sliding seat 9 can slide on the top end of the first guide rail platform 1. The first sliding seat 6 is detachable from the first guide rail platform 1 through the first knob 5. The second sliding seat 9 is detachable from the first guide rail platform 1 through the second knob 10;

[0024] Specifically, as shown in Figure 1 , Figure 2 and Figure 3 , according to the diameter of the tire, the first sliding seat 6 and the second sliding seat 9 can be respectively moved on the first guide rail platform 1. When moving to the required position, the first knob 5 and the second knob 10 are used to conveniently position the first sliding seat 6 and the second sliding seat 9, making it more convenient to adjust the lateral spacing.

[0025] Embodiment 2: A first mounting seat 7 is fixedly installed at the top of the first sliding seat 6, and a second mounting seat 11 is fixedly installed at the top of the second sliding seat 9. A second guide rail platform 4 is fixedly connected to the right side of the first mounting seat 7, and a third guide rail platform 8 is fixedly connected to one side of the second mounting seat 11. A fourth sliding seat 16 is arranged on one side of the second guide rail platform 4, and a third sliding seat 12 is arranged on one side of the third guide rail platform 8. The front end of the third sliding seat 12 is movably connected to a third knob 14, and the front end of the fourth sliding seat 16 is movably connected to a fourth knob 18;

[0026] The third sliding seat 12 is slidable on one side of the third guide rail platform 8, and the fourth sliding seat 16 is slidable on one side of the second guide rail platform 4;

[0027] Specifically, as shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , when the position needs to be adjusted up and down, the third sliding seat 12 and the fourth sliding seat 16 can be slid on the second guide rail platform 4 and the third guide rail platform 8, moved to the required height, and fixed by the third knob 14 and the fourth knob 18, making it more convenient for up and down adjustment.

[0028] Embodiment 3: A first support seat 19 is fixedly installed on one side of the third sliding seat 12, and a first movable rod 15 is arranged through the inside of the first support seat 19. The first movable rod 15 is movable inside the first support seat 19. A second support seat 20 is fixedly installed on one side of the fourth sliding seat 16, and a second movable rod 17 is arranged through the inside of the second support seat 20. The second movable rod 17 is movable inside the second support seat 20;

[0029] A third mounting bracket 21 is fixedly installed at the rear end of the first movable rod 15, and a microphone 13 is placed inside the third mounting bracket 21;

[0030] Specifically, as shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , when the microphone 13 is installed in the third mounting bracket 21 and the position of the microphone 13 needs to be adjusted, the first movable rod 15 can be telescopically moved inside the first support seat 19, and at the same time, the second movable rod 17 is aligned with the center point of the tire. When adjustment is needed, the second movable rod 17 can also be moved inside the second support seat 20. Since there are scales on the outside, it is convenient to adjust the distance more precisely and accurately.

[0031] Working principle: When the utility model is in use, first, according to the diameter of the tire, the first sliding seat 6 and the second sliding seat 9 can be respectively moved on the first guide rail platform 1. When they are moved to the required positions, the first sliding seat 6 and the second sliding seat 9 can be conveniently positioned by using the first knob 5 and the second knob 10, making it more convenient to adjust the lateral spacing. After that, when the position needs to be adjusted up and down, the third sliding seat 12 and the fourth sliding seat 16 can slide on the second guide rail platform 4 and the third guide rail platform 8. When they are moved to the required height, the third sliding seat 12 and the fourth sliding seat 16 are fixed by using the third knob 14 and the fourth knob 18, making it more convenient to adjust up and down. Finally, the microphone 13 is installed in the third mounting bracket 21. When the position of the microphone 13 needs to be adjusted, the first movable rod 15 can be telescopically moved inside the first support seat 19. At the same time, the second movable rod 17 is aligned with the center point of the tire. When adjustment is needed at the same time, the second movable rod 17 can also move inside the second support seat 20. Because there are scales on the outside, it is convenient to adjust the distance more precisely and accurately.

[0032] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A special fixture for road noise measurement, comprising a first guide rail table (1) and a first scale line (2), characterized in that: A first scale line (2) is provided at the front end of the first guide rail table (1). A first sliding seat (6) is provided on the right side of the top end of the first guide rail table (1), and a second sliding seat (9) is provided on the left side of the top end of the first guide rail table (1). A chute (3) is provided inside the top end of the first guide rail table (1). A first knob (5) is movably connected to the front end of the first sliding seat (6), and a second knob (10) is movably connected to the front end of the second sliding seat (9).

2. The special fixture for road noise measurement according to claim 1, wherein: The first sliding seat (6) and the second sliding seat (9) are slidable on the top end of the first guide rail table (1). The first sliding seat (6) is detachable from the first guide rail table (1) through the first knob (5), and the second sliding seat (9) is detachable from the first guide rail table (1) through the second knob (10).

3. The special fixture for road noise measurement according to claim 1, wherein: A first mounting seat (7) is fixedly installed at the top end of the first sliding seat (6), and a second mounting seat (11) is fixedly installed at the top end of the second sliding seat (9). A second guide rail table (4) is fixedly connected to the right side of the first mounting seat (7), and a third guide rail table (8) is fixedly connected to one side of the second mounting seat (11). A fourth sliding seat (16) is provided on one side of the second guide rail table (4), and a third sliding seat (12) is provided on one side of the third guide rail table (8). A third knob (14) is movably connected to the front end of the third sliding seat (12), and a fourth knob (18) is movably connected to the front end of the fourth sliding seat (16).

4. The special fixture for road noise measurement according to claim 3, characterized in that: A first support seat (19) is fixedly installed on one side of the third sliding seat (12). A first movable rod (15) is penetrated through the inside of the first support seat (19), and the first movable rod (15) is movable inside the first support seat (19). A second support seat (20) is fixedly installed on one side of the fourth sliding seat (16). A second movable rod (17) is penetrated through the inside of the second support seat (20), and the second movable rod (17) is movable inside the second support seat (20).

5. The special fixture for road noise measurement according to claim 3, characterized in that: The third sliding seat (12) is slidable on one side of the third guide rail table (8), and the fourth sliding seat (16) is slidable on one side of the second guide rail table (4).

6. The special fixture for road noise measurement according to claim 4, characterized in that: A third mounting bracket (21) is fixedly installed at the rear end of the first movable rod (15), and a microphone (13) is placed inside the third mounting bracket (21).

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