Passenger car single-leg supporting instrument board cross beam structure and installation method

Abstract

The invention relates to the technical field of automobile manufacturing, in particular to a passenger car single-leg supporting instrument panel cross beam structure and an installation method. The passenger car single-leg supporting instrument panel cross beam structure comprises a cross beam main pipe beam (1); a connecting bracket (2) is arranged on the cross beam main pipe beam (1); the connecting bracket (2) is connected with a single-leg bracket (3); the single-leg bracket (3) is connected with a vehicle body; a single-leg bracket support is arranged at the middle lower part of the instrument panel cross beam; compared with a small passenger car (the middle lower part and the car body are not supported) in the market, the single-leg support is added, the stability of the instrument panel cross beam and the cab is enhanced, and meanwhile, the driving safety of passengers in the cab is ensured; the driving experience of passengers is improved; meanwhile, compared with a traditional double-leg supporting scheme, the supporting device can adapt to installation operation of a small door opening of a small passenger car, and universality is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile manufacturing. Specifically, the present invention relates to a single-leg support instrument panel crossbeam structure and installation method for a passenger car. Background Art

[0002] With the development of the competition among major domestic and foreign vehicle manufacturers and the popularization of automobiles, small passenger car customers not only have high visual requirements for the overall appearance of the vehicle; they also have relatively high requirements for the occupant use space, the convenience and performance of getting on and off the vehicle; for users in small towns and rural areas in the fourth and fifth tiers, there are uniform requirements for slow driving speed but occasional high-speed driving. Therefore, the performance of the instrument panel crossbeam needs to be strengthened to ensure the safety requirements of driving; currently, the instrument panel crossbeams of general medium and large passenger cars usually have one bracket on each side, supported by two legs; the two-leg support meets the requirements for high-speed driving, but there is performance overkill for low-speed driving; and because the door openings of small cars are relatively small, the crossbeam cannot directly enter the vehicle body. Therefore, there is no support leg device in the middle and lower parts of the instrument panel crossbeam of small cars on the market to meet the requirements of low-speed driving; the existing small car instrument panel crossbeams lack support in the middle and lower parts, and have poor performance in terms of high-speed driving stability.

[0003] The applicant found through retrieval that the Chinese patent document with the publication number 210555162U disclosed an aluminum alloy automobile instrument panel crossbeam assembly with a crossbeam main pipe of a "day" - shaped cross-section on May 19, 2020. It includes a main body of the instrument panel crossbeam assembly made of aluminum alloy. The main body of the instrument panel crossbeam assembly includes a crossbeam main pipe and a steering column fixing bracket. The steering column fixing bracket is welded and fixed on the crossbeam main pipe. It also includes a steering column support. The steering column support is arranged between two steering column fixing brackets; both the steering column support and the steering column fixing brackets are provided with installation holes for installing the steering column; the cross-section of the crossbeam main pipe is in the shape of a "day", and the crossbeam main pipe includes a hollow square pipe with a cross-section of a rounded rectangle and reinforcing ribs arranged inside the hollow square pipe; the thickness of the hollow square pipe and the reinforcing ribs is not greater than 2.5 mm; this device also cannot solve the above technical problems.

[0004] Therefore, in order to improve or solve at least one of the above problems, it is necessary to provide a single-leg support instrument panel crossbeam structure and installation method for a passenger car that is suitable for the relatively small door openings of small passenger cars and can provide support for the lower part of the crossbeam. Summary of the Invention

[0005] The purpose of the present invention is to provide a single-leg support instrument panel crossbeam structure and installation method for a passenger car that can be suitable for the relatively small door openings of small passenger cars and can provide support for the lower part of the crossbeam.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a single-leg support instrument panel crossbeam structure for a passenger car, including a crossbeam main beam; a connecting bracket is provided on the crossbeam main beam; the connecting bracket is connected to a single-leg bracket; and the single-leg bracket is connected to the vehicle body.

[0007] The connecting bracket includes a first side plate and a second side plate; one end of the first side plate and the second side plate are connected to the main beam of the crossbeam; the other ends of the first side plate and the second side plate are connected to the middle and lower connecting bracket of the crossbeam; the middle and lower connecting bracket of the crossbeam is connected to the single-leg bracket.

[0008] A mounting plate is provided on the middle and lower connecting bracket of the cross beam; a waist-shaped hole is provided on the mounting plate; a mounting bolt is connected to the single-leg bracket; and the mounting bolt is connected in the waist-shaped hole.

[0009] The single-leg bracket is provided with a vehicle body connecting plate; the vehicle body connecting plate is connected to the end of the single-leg bracket away from the middle and lower connecting bracket of the cross beam; the vehicle body connecting plate is connected to the vehicle body floor.

[0010] A right-side fixing bracket of the crossbeam is provided at the end of the main beam of the crossbeam; the right-side fixing bracket of the crossbeam includes a first bracket lining plate and a first bracket connecting plate; the first bracket lining plate is clamped on the main beam of the crossbeam and is connected to the first bracket connecting plate; the first bracket lining plate and the first bracket connecting plate are both provided with a first bolt mounting hole; a first mounting bolt is provided in the first bolt mounting hole; the first mounting bolt is connected to the vehicle body.

[0011] A connecting plate is provided at the bottom of the first bracket connecting plate; a side plate is provided on one side of the second side plate; one end of the connecting plate is connected to the first bracket connecting plate; the other end of the connecting plate is connected to the side plate; a reinforcing plate is provided between the first side plate and the second side plate.

[0012] A left side fixing bracket of the cross beam is arranged on the cross beam main beam; the left side fixing bracket of the cross beam is arranged at one end of the cross beam main beam away from the right side fixing bracket of the cross beam; the left side fixing bracket of the cross beam is connected to the vehicle body.

[0013] The left side fixed bracket of the cross beam includes a second bracket lining plate and a second bracket connecting plate; the second bracket lining plate is clamped on the cross beam main beam and connected to the second bracket connecting plate; the second bracket lining plate and the second bracket connecting plate are both provided with a second bolt mounting hole; the second bolt mounting hole is provided with a second mounting bolt; the second mounting bolt is connected to the vehicle body.

[0014] A steering column fixing bracket is provided on the cross beam main beam; the steering column fixing bracket is arranged between the first side plate and the left side fixing bracket of the cross beam; the steering column fixing bracket includes a bottom bracket; the bottom bracket is respectively provided with a first top bracket and a second top bracket; the cross beam main beam is arranged on the bottom bracket, and the cross beam main beam is arranged between the first top bracket and the second top bracket; the second top bracket is connected to the front panel of the vehicle body.

[0015] A method for installing the single-leg supporting instrument panel cross beam structure of a passenger vehicle, the method comprising the following steps:

[0016] S1: Connect the crossbeam main beam to the connecting bracket, the crossbeam right side fixing bracket, the crossbeam left side fixing bracket and the steering column fixing bracket respectively;

[0017] S2: Install the cross beam main beam in the vehicle body;

[0018] S3: Connect the two ends of the single-leg bracket to the middle and lower connecting bracket of the crossbeam and the vehicle body floor respectively.

[0019] The beneficial effects of this application are:

[0020] 1. The present application provides a single-leg bracket support at the middle and lower part of the dashboard beam; compared with small passenger cars on the market (the middle and lower part have no support from the body), the single-leg bracket is added to enhance the stability of the dashboard beam and the cockpit, while ensuring the driving safety of the cockpit occupants; improving the driving experience of the occupants; at the same time, compared with the traditional double-leg support solution, the present application can adapt to the installation operation of smaller door openings of small passenger cars and is more versatile.

[0021] 2. The main beam of the crossbeam of the present application is integrally welded with the connecting bracket, the right side fixing bracket of the crossbeam, the left side fixing bracket of the crossbeam and the steering column fixing bracket, and is pre-installed in the vehicle body; then the single-leg bracket is installed and fixed to the middle and lower connecting bracket of the crossbeam and the vehicle body floor; this can avoid interference between the single-leg bracket and the vehicle body door sill during final assembly of the device, thus facilitating the installation operation; at the same time, a waist-shaped hole is provided on the mounting plate of the middle and lower connecting bracket of the crossbeam, and the single-leg bracket is connected to the waist-shaped hole by mounting bolts, which can meet the assembly tolerance requirements and meet the final assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0023] Figure 1 This is a structural schematic diagram of the single-leg support instrument panel crossbeam structure and installation method of the passenger car.

[0024] Figure 2This is a structural schematic diagram of the connecting bracket of the single-leg supporting instrument panel crossbeam structure and installation method of the passenger car.

[0025] Figure 3 The schematic diagram of the structure of the single-leg bracket for supporting the instrument panel cross beam structure and the installation method of the single-leg bracket of the passenger car is shown.

[0026] Figure 4 The schematic diagram of the structure of the right side fixing bracket of the crossbeam of the single-leg supporting instrument panel crossbeam of the passenger car and the installation method thereof.

[0027] Figure 5 The schematic diagram of the structure of the left side fixing bracket of the crossbeam of the single-leg supporting instrument panel crossbeam of the passenger car and the installation method thereof.

[0028] Figure 6 The schematic diagram of the structure of the steering column fixing bracket of the single-leg supporting instrument panel crossbeam structure and installation method of the passenger car is shown.

[0029] The marks in the above figure are:

[0030] The markings in the figure are:

[0031] 1. Crossbeam main beam,

[0032] 2. Connecting bracket, 201. First side plate, 202. Second side plate, 203. Side plate, 204. Reinforcement plate,

[0033] 3. Single leg bracket, 301. Mounting bolts, 302. Body connecting plate,

[0034] 4. Connecting bracket at the middle and lower part of the beam, 401, mounting plate, 402, waist-shaped hole,

[0035] 5. Fixed bracket on the right side of the crossbeam, 501. First bracket lining plate, 502. First bracket connecting plate, 503. First bolt mounting hole, 504. Connecting plate,

[0036] 6. Left side fixing bracket of beam, 601. Second bracket lining plate, 602. Second bracket connecting plate, 603. Second bolt mounting hole,

[0037] 7. Steering column fixing bracket, 701. Bottom bracket, 702. First top bracket, 703. Second top bracket. DETAILED DESCRIPTION

[0038] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0039] Figure 1The single-leg supporting instrument panel cross beam structure of the passenger car shown comprises a cross beam main beam 1; a connecting bracket 2 is arranged on the cross beam main beam 1; the connecting bracket 2 is connected to a single-leg bracket 3; and the single-leg bracket 3 is connected to the vehicle body.

[0040] A single-leg bracket 3 is provided at the middle and lower part of the dashboard cross beam; compared with small passenger cars on the market (the middle and lower parts are not supported by the body), the single-leg bracket 3 is added to enhance the stability of the dashboard cross beam and the cockpit, while ensuring the driving safety of the cockpit occupants; improving the driving experience of the occupants; at the same time, compared with the traditional double-leg support solution, the present application can adapt to the installation operation of smaller door openings of small passenger cars and is more versatile.

[0041] The connecting bracket 2 includes a first side plate 201 and a second side plate 202; one end of the first side plate 201 and the second side plate 202 are connected to the crossbeam main beam 1; the other ends of the first side plate 201 and the second side plate 202 are connected to the middle and lower connecting bracket 4 of the crossbeam; the middle and lower connecting bracket 4 of the crossbeam is connected to the single-leg bracket 3.

[0042] The first side plate 201 and the second side plate 202 are both arc-shaped plates; the ends of the first side plate 201 and the second side plate 202 are fixedly connected to the crossbeam main beam 1; the middle and lower connecting bracket 4 of the crossbeam is a U-shaped plate; one side of the middle and lower connecting bracket 4 of the crossbeam is bolted to the first side plate 201; the other side of the middle and lower connecting bracket 4 of the crossbeam is bolted to the second side plate 202; the single-leg bracket 3 is fixedly connected to the middle of the middle and lower connecting bracket 4 of the crossbeam, and is arranged on the side of the middle and lower connecting bracket 4 of the crossbeam away from the connecting bracket 2.

[0043] A mounting plate 401 is provided on the connecting bracket 4 in the middle and lower part of the crossbeam; a waist-shaped hole 402 is provided on the mounting plate 401; a mounting bolt 301 is connected to the single-leg bracket 3; and the mounting bolt 301 is connected in the waist-shaped hole 402.

[0044] The mounting plate 401 is a square plate and is an integral structure with the middle and lower connecting bracket 4 of the crossbeam; the waist-shaped hole 402 is a through hole; two waist-shaped holes 402 are provided on the mounting plate 401; two mounting bolts 301 are connected to the end of the single-leg bracket 3; the mounting bolts 301 are connected in the waist-shaped hole 402, so as to realize the fixed connection between the single-leg bracket 3 and the middle and lower connecting bracket 4 of the crossbeam; the waist-shaped hole 402 cooperates with the mounting bolts 301 to meet the requirements of assembly tolerance and meet the final assembly process.

[0045] A vehicle body connecting plate 302 is provided on the single-leg bracket 3; the vehicle body connecting plate 302 is connected to the end of the single-leg bracket 3 away from the middle and lower connecting bracket 4 of the cross beam; and the vehicle body connecting plate 302 is connected to the vehicle body floor.

[0046] The vehicle body connecting plate 302 is a square plate and is an integral structure with the single-leg bracket 3 ; the vehicle body connecting plate 302 is connected to the vehicle body bottom plate, thereby achieving a fixed connection between the single-leg bracket 3 and the vehicle body.

[0047] A right side fixing bracket 5 of the cross beam is provided at the end of the cross beam main beam 1; the right side fixing bracket 5 of the cross beam includes a first bracket lining plate 501 and a first bracket connecting plate 502; the first bracket lining plate 501 is clamped on the cross beam main beam 1 and connected to the first bracket connecting plate 502; the first bracket lining plate 501 and the first bracket connecting plate 502 are both provided with a first bolt mounting hole 503; the first bolt mounting hole 503 is provided with a first mounting bolt; the first mounting bolt is connected to the vehicle body.

[0048] A U-shaped hole is provided on the first bracket lining plate 501, and the first bracket lining plate 501 is clamped on the crossbeam main beam 1; the first bracket connecting plate 502 is a Z-shaped plate; the first bracket connecting plate 502 is fixedly connected to the first bracket lining plate 501; two first bolt mounting holes 503 are respectively provided on the first bracket lining plate 501 and the first bracket connecting plate 502; the first mounting bolt passes through the first bolt mounting hole 503 to be connected to the vehicle body.

[0049] A connecting plate 504 is provided at the bottom of the first bracket connecting plate 502; a side plate 203 is provided on one side of the second side plate 202; one end of the connecting plate 504 is connected to the first bracket connecting plate 502; the other end of the connecting plate 504 is connected to the side plate 203; a reinforcing plate 204 is provided between the first side plate 201 and the second side plate 202.

[0050] The side plate 203 and the second side plate 202 are an integral structure, and the side plate 203 is arranged on the side of the second side plate 202 away from the first side plate 201; one end of the connecting plate 504 is welded to the side plate 203; the other end of the connecting plate 504 is welded to the first bracket connecting plate 502; the connecting plate 504 can increase the overall structural strength of the device; the reinforcing plate 204 is a U-shaped plate; the two ends of the reinforcing plate 204 are respectively fixedly connected to the first side plate 201 and the second side plate 202, thereby being able to strengthen the structural strength of the connecting bracket 2.

[0051] A left side fixing bracket 6 is provided on the cross beam main beam 1; the left side fixing bracket 6 is provided at one end of the cross beam main beam 1 away from the right side fixing bracket 5; the left side fixing bracket 6 is connected to the vehicle body.

[0052] The left side fixing bracket 6 of the cross beam is fixedly connected to the end of the cross beam main beam 1, and the left side fixing bracket 6 of the cross beam is fixedly connected to the vehicle body, so that the left side of the device can be stably connected to the vehicle body.

[0053] The left side fixed bracket 6 of the cross beam includes a second bracket lining plate 601 and a second bracket connecting plate 602; the second bracket lining plate 601 is clamped on the cross beam main beam 1 and connected to the second bracket connecting plate 602; the second bracket lining plate 601 and the second bracket connecting plate 602 are both provided with a second bolt mounting hole 603; the second bolt mounting hole 603 is provided with a second mounting bolt; the second mounting bolt is connected to the vehicle body.

[0054] A U-shaped groove is provided on the second bracket lining 601; the second bracket lining 601 is clamped on the crossbeam main beam 1 through the U-shaped groove; the second bracket connecting plate 602 is a Z-shaped structure; the second bracket connecting plate 602 is fixedly connected to the second bracket lining 601; the second bracket connecting plate 602 and the second bracket lining 601 are both provided with a second bolt mounting hole 603; the second mounting bolt passes through the second bolt mounting hole 603 and is connected to the vehicle body.

[0055] A steering column fixing bracket 7 is provided on the crossbeam main beam 1; the steering column fixing bracket 7 is arranged between the first side plate 201 and the crossbeam left side fixing bracket 6; the steering column fixing bracket 7 includes a bottom bracket 701; a first top bracket 702 and a second top bracket 703 are respectively provided on the bottom bracket 701; the crossbeam main beam 1 is arranged on the bottom bracket 701, and the crossbeam main beam 1 is arranged between the first top bracket 702 and the second top bracket 703; the second top bracket 703 is connected to the front panel of the vehicle body.

[0056] The bottom bracket 701 is fixedly connected to the bottom of the cross beam main beam 1; the first top bracket 702 and the second top bracket 703 are respectively arranged at the two ends of the bottom bracket 701, and the first top bracket 702 and the second top bracket 703 are both fixedly connected to the bottom bracket 701; the steering column fixing bracket 7 is fixedly connected to the front panel of the vehicle body; thereby, the device can be stably fixed to the vehicle body.

[0057] A method for installing a single-leg supporting instrument panel crossbeam structure of a passenger car, the installation method comprising the following steps:

[0058] S1: Connect the crossbeam main beam 1 to the connecting bracket 2, the crossbeam right side fixing bracket 5, the crossbeam left side fixing bracket 6 and the steering column fixing bracket 7 respectively;

[0059] S2: Install the cross beam main beam 1 in the vehicle body;

[0060] S3: Connect the two ends of the single-leg bracket 3 to the middle and lower connecting bracket 4 of the crossbeam and the vehicle body floor respectively.

[0061] The crossbeam main beam 1 of the present application is integrally welded with the connecting bracket 2, the crossbeam right side fixing bracket 5, the crossbeam left side fixing bracket 6 and the steering column fixing bracket 7, and is pre-installed in the vehicle body; then the single-leg bracket 3 is installed and fixed with the middle and lower connecting bracket 4 of the crossbeam and the vehicle body floor; this can avoid interference between the single-leg bracket 3 and the vehicle body door sill during the final assembly of the device, and facilitate the installation operation.

[0062] The specific workflow of the present invention is as follows:

[0063] S1: Connect the crossbeam main beam 1 to the connecting bracket 2, the crossbeam right side fixing bracket 5, the crossbeam left side fixing bracket 6 and the steering column fixing bracket 7 respectively;

[0064] S2: Install the cross beam main beam 1 in the vehicle body;

[0065] S3: Connect the two ends of the single-leg bracket 3 to the middle and lower connecting bracket 4 of the crossbeam and the vehicle body floor respectively. The above is an exemplary description of the present invention in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above-mentioned concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A single-leg supporting instrument panel crossbeam structure for a passenger car, characterized in that: It comprises a crossbeam main beam (1); a connecting bracket (2) is provided on the crossbeam main beam (1); the connecting bracket (2) is connected to a single-leg bracket (3); and the single-leg bracket (3) is connected to a vehicle body.

2. A single-leg supporting instrument panel cross beam structure for a passenger vehicle according to claim 1, characterized in that: The connecting bracket (2) comprises a first side plate (201) and a second side plate (202); one end of each of the first side plate (201) and the second side plate (202) is connected to the crossbeam main beam (1); the other ends of the first side plate (201) and the second side plate (202) are connected to a crossbeam middle-lower connecting bracket (4); the crossbeam middle-lower connecting bracket (4) is connected to the single-leg bracket (3).

3. A single-leg supporting instrument panel cross beam structure for a passenger vehicle according to claim 2, characterized in that: A mounting plate (401) is provided on the middle and lower connecting bracket (4) of the crossbeam; a waist-shaped hole (402) is provided on the mounting plate (401); a mounting bolt (301) is connected to the single-leg bracket (3); and the mounting bolt (301) is connected to the waist-shaped hole (402).

4. A single-leg supporting instrument panel cross beam structure for a passenger vehicle according to any one of claims 2-3, characterized in that: The single-leg bracket (3) is provided with a vehicle body connecting plate (302); the vehicle body connecting plate (302) is connected to the end of the single-leg bracket (3) away from the middle and lower connecting bracket (4) of the cross beam; the vehicle body connecting plate (302) is connected to the vehicle body floor.

5. A single-leg supporting instrument panel cross beam structure for a passenger vehicle according to claim 4, characterized in that: A right side fixing bracket (5) of the cross beam is provided at the end of the cross beam main beam (1); the right side fixing bracket (5) of the cross beam comprises a first bracket lining plate (501) and a first bracket connecting plate (502); the first bracket lining plate (501) is clamped on the cross beam main beam (1) and connected to the first bracket connecting plate (502); the first bracket lining plate (501) and the first bracket connecting plate (502) are both provided with a first bolt mounting hole (503); a first mounting bolt is provided in the first bolt mounting hole (503); the first mounting bolt is connected to the vehicle body.

6. A single-leg supporting instrument panel cross beam structure for a passenger vehicle according to claim 5, characterized in that: A connecting plate (504) is provided at the bottom of the first bracket connecting plate (502); a side plate (203) is provided on one side of the second side plate (202); one end of the connecting plate (504) is connected to the first bracket connecting plate (502); the other end of the connecting plate (504) is connected to the side plate (203); and a reinforcing plate (204) is provided between the first side plate (201) and the second side plate (202).

7. A single-leg supporting instrument panel cross beam structure for a passenger vehicle according to any one of claims 5-6, characterized in that: The crossbeam main beam (1) is provided with a crossbeam left side fixing bracket (6); the crossbeam left side fixing bracket (6) is arranged at one end of the crossbeam main beam (1) away from the crossbeam right side fixing bracket (5); the crossbeam left side fixing bracket (6) is connected to the vehicle body.

8. A single-leg supporting instrument panel cross beam structure for a passenger vehicle according to claim 7, characterized in that: The left side fixing bracket (6) of the cross beam comprises a second bracket lining plate (601) and a second bracket connecting plate (602); the second bracket lining plate (601) is clamped on the cross beam main beam (1) and connected to the second bracket connecting plate (602); the second bracket lining plate (601) and the second bracket connecting plate (602) are both provided with a second bolt mounting hole (603); the second bolt mounting hole (603) is provided with a second mounting bolt; the second mounting bolt is connected to the vehicle body.

9. A single-leg supporting instrument panel cross beam structure for a passenger vehicle according to claim 8, characterized in that: A steering column fixing bracket (7) is provided on the cross beam main beam (1); the steering column fixing bracket (7) is provided between the first side plate (201) and the cross beam left side fixing bracket (6); the steering column fixing bracket (7) comprises a bottom bracket (701); a first top bracket (702) and a second top bracket (703) are provided on the bottom bracket (701); the cross beam main beam (1) is provided on the bottom bracket (701), and the cross beam main beam (1) is provided between the first top bracket (702) and the second top bracket (703); the second top bracket (703) is connected to the front panel of the vehicle body.

10. A method for installing the single-leg supporting instrument panel cross beam structure of a passenger vehicle according to any one of claims 1 to 9, characterized in that: The installation method comprises the following steps: S1: Connecting the crossbeam main beam (1) to the connecting bracket (2), the crossbeam right side fixing bracket (5), the crossbeam left side fixing bracket (6) and the steering column fixing bracket (7) respectively; S2: Install the cross beam main beam (1) in the vehicle body; S3: Connecting the two ends of the single-leg bracket (3) to the middle and lower connecting bracket (4) of the crossbeam and the vehicle body floor respectively.

Images