In-vehicle noise position identification device

Abstract

The invention relates to the technical field of vehicle detection, and discloses an in-vehicle noise position recognition device which comprises a test device used for collecting noise information and a fixing frame clamped in a rear row sitting area, and the fixing frame comprises a clamping seat abutting against the front face of a rear row seat and a telescopic frame abutting against the back face of a front row seat. The telescopic frame comprises a fixed rod, a sliding rod and a reinforcing rod, the tail end of the fixed rod is fixedly connected with the clamping base, a sliding groove is formed in the fixed rod, the sliding rod is slidably connected with the sliding groove, the fixed rod and the sliding rod are connected through a fastening part, a threaded groove is formed in the sliding rod, the reinforcing rod is in threaded connection with the threaded groove, and a mounting base is arranged on the side wall of the fixed rod. The test equipment is clamped on the mounting seat, and the device can be firmly clamped between the front row of seats and the rear row of seats, so that a stable mounting platform is provided for the test equipment, noise caused by non-automobile factors is reduced, the accuracy of data acquired by the test equipment is improved, and the position of noise in an automobile is better judged.

Description

Technical Field

[0001] The invention relates to a noise recognition device, in particular to a noise position recognition device inside a vehicle. Background Art

[0002] The detection of in-vehicle noise location identification usually involves a series of systematic steps to ensure that the noise source can be accurately and effectively located. The preparation stage includes the following steps:

[0003] 1. Determine the test environment: Choose a relatively open and quiet environment for noise testing;

[0004] 2. Prepare test equipment: Use a sound level meter or other noise measurement equipment that complies with the standards;

[0005] 3. Set up the test vehicle: Make sure the vehicle is in a closed state, including windows, sunroof, air inlets and outlets. Auxiliary devices such as wipers, heaters, fans and air conditioners should not be working during the measurement process.

[0006] It can be seen that the identification of the position of in-car noise requires keeping the car quiet. In order to reduce the impact of the sound caused by the tester himself on the test effect, the measuring equipment needs to be fixed in the front driving area and the rear passenger area of ​​the car. The sound source information is automatically collected through the measuring equipment during the entire driving process of the vehicle.

[0007] In the front driving area, a clamp can be installed at the air-conditioning outlet to fix the measuring equipment. However, due to the differences in vehicles, the layout of the rear passenger area also varies. The rear passenger area of ​​most vehicles lacks a structure that can fix the measuring equipment, which can easily cause friction or fall of the measuring equipment during driving, causing unnecessary noise that affects the test results.

[0008] Therefore, a noise position identification device is needed that can fix the measuring device in the rear seating area. Summary of the invention

[0009] In view of this, the present invention provides a device for identifying the position of noise in a vehicle to solve the above technical problems.

[0010] The technical solution of the present invention is achieved in this way:

[0011] The present invention provides a device for identifying the position of noise in a vehicle, comprising a test device for collecting noise information and a fixed frame clamped in a rear seating area, wherein the test device is installed on the fixed frame, the fixed frame comprises a clamping seat abutting against the front of the rear seat and a telescopic frame abutting against the back of the front seat, the telescopic frame comprises a fixed rod, a sliding rod and a reinforcement rod, the tail end of the fixed rod is fixedly connected to the clamping seat, a sliding groove is provided inside the fixed rod, the sliding rod is slidably connected to the sliding groove, the fixed rod and the sliding rod are connected by a fastening component, a threaded groove is provided inside the sliding rod, the reinforcement rod is threadedly connected to the threaded groove, a mounting seat is provided on the side wall of the fixed rod, and the test device is clamped on the mounting seat.

[0012] Preferably, the fastening component comprises a fastening bolt, a threaded hole communicating with the slide groove is formed on the side wall of the fixing rod, and the fastening bolt passes through the threaded hole to abut against the sliding rod.

[0013] Preferably, the threaded hole is formed at an end of the fixing rod away from the clamping seat.

[0014] Preferably, a rotating wheel is provided at the front end of the reinforcement rod, and the rotating wheel is fixedly sleeved on the outer wall of the reinforcement rod.

[0015] Preferably, a spherical abutment joint is provided at the top end of the reinforcement rod.

[0016] Preferably, an anti-skid plate is provided at the front end of the abutment joint, a spherical hinge groove is opened at one end of the anti-skid plate, and the abutment joint is hinged in the hinge groove.

[0017] Preferably, the card seat is a triangular prism structure, and the inclined angle surface of the card seat is inserted into the connection between the seat cushion and the backrest of the rear seat.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention provides a device for identifying the position of noise in a vehicle. A card seat is pressed against the connection between the seat cushion and the backrest of the rear seat, and a barrier is formed on the card seat by the seat cushion and the backrest to prevent the card seat from moving backward. The sliding rod is pulled outward, and the sliding rod is locked with the fixing rod by the fastening component to complete the initial fixation. Subsequently, the reinforcing rod is rotated while the sliding rod is gripped to screw out the reinforcing rod, and a stable forward pressure is applied to the back of the front seat through the front end of the reinforcing rod. The card seat is subjected to a reaction force brought by the front seat and applies a stable backward pressure to the rear seat through the telescopic frame, thereby completing the fixing function of the fixing frame. Finally, the test equipment is clamped on the mounting seat to complete the fixed installation of the test equipment. When the vehicle is accelerating or decelerating, the test equipment can remain relatively stable, thereby reducing the noise brought by non-automotive factors, improving the accuracy of data collected by the test equipment, and better judging the position of the noise in the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the installation effect of the present invention;

[0022] Figure 2 It is a schematic diagram of the top surface structure of the fixing frame of the present invention;

[0023] Figure 3 It is a schematic diagram of the internal structure of the telescopic frame of the present invention.

[0024] In the figure, 1. front seat; 2. rear seat; 3. seat; 4. fixing rod; 5. sliding rod; 6. reinforcement rod; 7. mounting seat; 8. fastening bolt; 9. rotating wheel; 10. abutment; 11. anti-skid plate; 12. testing equipment. DETAILED DESCRIPTION

[0025] In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0026] See also Figures 1 to 3 The present invention provides a device for identifying the position of noise in a vehicle, comprising a test device 12 for collecting noise information and a fixed frame clamped in the rear seating area, wherein the test device 12 is installed on the fixed frame, wherein the fixed frame comprises a card seat 3 abutting against the front of the rear seat 2 and a telescopic frame abutting against the back of the front seat 1, wherein the telescopic frame comprises a fixed rod 4, a sliding rod 5 and a reinforcement rod 6, wherein the tail end of the fixed rod 4 is fixedly connected to the card seat 3, a sliding groove is provided inside the fixed rod 4, and the sliding rod 5 is slidably connected to the sliding groove, the fixed rod 4 and the sliding rod 5 are connected by a fastening component, a threaded groove is provided inside the sliding rod 5, and the reinforcement rod 6 is threadedly connected to the threaded groove, and a mounting seat 7 is provided on the side wall of the fixed rod 4, and the test device 12 is clamped on the mounting seat 7.

[0027] Before the test, first place the card seat 3 against the connection between the seat cushion and the backrest of the rear seat 2, and use the seat cushion and the backrest to form a barrier for the card seat 3 to prevent the card seat 3 from moving backward. At this time, the telescopic frame is tilted and points to the front seat 1. Pull the sliding rod 5 outward until the top of the reinforcement rod 6 is against the back of the front seat 1, or after the maximum limit, lock the sliding rod 5 and the fixing rod 4 through the fastening component to complete the initial fixation; then, rotate the reinforcement rod 6 while holding the sliding rod 5 to unscrew the reinforcement rod 6, and use the characteristic that the threaded connection will not retract backwards under pressure to make the reinforcement rod 6 extend as far as possible. , a stable forward pressure is applied to the back of the front seat 1 through the front end of the reinforcement rod 6, and the card seat 3 applies a stable backward pressure to the rear seat 2 through the reaction force brought by the front seat 1 through the telescopic frame, thereby completing the fixing function of the fixing frame, and finally the test equipment 12 is connected to the mounting seat 7 to complete the fixed installation of the test equipment 12. When the vehicle is accelerating or decelerating, the test equipment 12 can remain relatively stable, thereby reducing the noise caused by non-automotive factors, improving the accuracy of the data collected by the test equipment 12, and better judging the location of the noise in the car.

[0028] The fastening component includes a fastening bolt 8. The side wall of the fixing rod 4 is provided with a threaded hole connected to the sliding groove. The fastening bolt 8 passes through the threaded hole and abuts against the sliding rod 5. The position of the sliding rod 5 can be adjusted by loosening the fastening bolt 8; the position of the sliding rod 5 can be fixed by tightening the fastening bolt 8.

[0029] The threaded hole is formed at one end of the fixing rod 4 away from the holder 3 , so that the fastening bolt 8 can contact the sliding rod 5 to the maximum extent, thereby expanding the extension range of the sliding rod 5 .

[0030] A rotating wheel 9 is provided at the front end of the reinforcing rod 6 . The rotating wheel 9 is fixedly sleeved on the outer wall of the reinforcing rod 6 , and the reinforcing rod 6 can be conveniently rotated by tightening the wheel.

[0031] A spherical abutment joint 10 is provided at the top end of the reinforcement rod 6 . The smooth spherical abutment joint 10 can minimize the damage to the front seat 1 and prevent the abutment joint 10 from puncturing or scratching the seat leather cover.

[0032] The front end of the abutment joint 10 is provided with an anti-skid plate 11, one end of the anti-skid plate 11 is provided with a spherical hinge groove, and the abutment joint 10 is hinged in the hinge groove. The anti-skid plate 11 can increase the contact area with the front seat 1, thereby increasing the friction force and making the fixing frame more stable and reliable. The spherical hinge groove can adjust the angle of the anti-skid plate 11 so that the anti-skid plate 11 can better contact with the front seat 1.

[0033] The seat 3 is a triangular prism structure, and the inclined angle surface of the seat 3 is inserted into the connection between the seat cushion and the backrest of the rear seat 2, so that the inclined surface of the seat 3 can be inserted into the connection, providing a better force point for the seat 3 and improving the stability of the seat 3.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for identifying the position of noise in a vehicle, comprising a test device for collecting noise information and a fixing frame clamped in a rear seat area, wherein the test device is mounted on the fixing frame, and characterized in that: The fixed frame includes a base abutting against the front of the rear seat and a telescopic frame abutting against the back of the front seat, the telescopic frame includes a fixed rod, a sliding rod and a reinforcement rod, the tail end of the fixed rod is fixedly connected to the base, a sliding groove is provided inside the fixed rod, the sliding rod is slidably connected to the sliding groove, the fixed rod and the sliding rod are connected by a fastening component, a threaded groove is provided inside the sliding rod, the reinforcement rod is threadedly connected to the threaded groove, the side wall of the fixed rod is provided with a mounting seat, and the test equipment is clamped on the mounting seat.

2. The in-vehicle noise position identification device according to claim 1, characterized in that: The fastening component comprises a fastening bolt, a threaded hole communicating with the slide groove is formed on the side wall of the fixing rod, and the fastening bolt passes through the threaded hole and abuts against the sliding rod.

3. The in-vehicle noise position identification device according to claim 2, characterized in that: The threaded hole is formed at an end of the fixing rod away from the clamping seat.

4. The in-vehicle noise position identification device according to claim 1, characterized in that: A rotating wheel is provided at the front end of the reinforcing rod, and the rotating wheel is fixedly sleeved on the outer wall of the reinforcing rod.

5. The device for identifying the position of noise in a vehicle according to claim 4, characterized in that: The top end of the reinforcement rod is provided with a spherical abutment joint.

6. The device for identifying the position of noise in a vehicle according to claim 5, characterized in that: The front end of the abutment joint is provided with an anti-slip plate, one end of the anti-slip plate is provided with a spherical hinge groove, and the abutment joint is hinged in the hinge groove.

7. The device for identifying the position of noise in a vehicle according to claim 1, characterized in that: The card seat is a triangular prism structure, and the inclined angle surface of the card seat is inserted into the connection between the seat cushion and the backrest of the rear seat.

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