Seat integrated mounting bracket assembly and automobile

Abstract

The invention discloses a seat integrated mounting bracket assembly and an automobile. The seat integrated mounting bracket assembly comprises a main pipe body, a first mounting bracket and a second mounting bracket, the first mounting bracket comprises a first main body and a backrest hinge, a first vehicle body connecting part, a seat connecting part, a first safety belt lock catch connecting part and a main pipe connecting part I are arranged on the first main body, the seat connecting part is rotationally connected with the backrest hinge, and the main pipe connecting part I is connected with the right part of the main pipe body; a vehicle body and safety belt connecting part, a second safety belt lock catch connecting part and a main pipe connecting part II are arranged on the second mounting bracket; and the main pipe connecting part II is connected with the left part of the main pipe body. According to the integrated seat mounting bracket assembly, the functions and the number of mounting points are large, the stability and the reliability of each mounting point are high, adaptive adjustment can be carried out according to the mounting point requirements of different vehicle types, and the universality is high.

Description

Technical Field

[0001] The invention relates to automobile parts, in particular to a seat integrated mounting bracket assembly and an automobile. Background Art

[0002] With the development of one-piece die-casting technology, more and more new models use one-piece die-casting bodies, but one-piece die-casting bodies have two disadvantages compared to traditional bodies that are welded from multiple sheet metal parts: 1. It is more difficult to mold through. Traditional bodies can adjust a small number of parts to adapt to different models. If one-piece die-casting body parts are to be used in different models, they can only be borrowed as a whole, which has higher requirements for peripheral parts matching and human-machine layout. 2. It is more expensive to set high-strength mounting points on the one-piece die-casting body. At the same time, special tooling is required for mounting point processing, and there is also a limit on the number of mounting points. The cost of traditional body mounting points is low, and there is almost no limit on the number. Take the rear floor of the body at the lower end of the rear seat backrest of the traditional body as an example. The seat back, seat cushion, ISOFIX lower fixing point (ISOFIX refers to the child seat fixing device), seat belt buckle and other parts need to be installed there. The mounting points related to the rear seats in the traditional body reach more than ten mounting points, and the positions of these mounting points may need to be slightly adjusted for different models. If these mounting points are still set directly on the one-piece die-casting body, the one-piece die-casting body will be difficult to meet the requirements.

[0003] CN205044581U discloses a seat center mounting hinge, including a mounting hinge base and a mounting hinge connecting plate; the middle of the mounting hinge base is a cavity structure; the number of mounting hinge connecting plates is 2, and they are symmetrical and connected to the mounting hinge base through mounting hinge rivets. This technical solution is used for the installation of car seats, and the car seat can be easily rotated 180°, and it is not easy to wear and slip, so that the car seat can be easily folded and the backrest can be adjusted. Undoubtedly, the technical solution disclosed in the above patent document is a beneficial attempt in the technical field, but the two holes on the inclined surface of the mounting hinge base are at angles to each other, which cannot be applied to the one-piece die-cast car body, and its function is only to install the seat, and its function is relatively small. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a seat-integrated mounting bracket assembly and a car, which have many functions and mounting points, each mounting point has high stability and reliability, and can be adaptively adjusted according to the mounting point requirements of different vehicle models, and has strong versatility.

[0005] A seat-integrated mounting bracket assembly in the present invention comprises a main body, a first mounting bracket and a second mounting bracket; the first mounting bracket comprises a first main body and a backrest hinge, the first main body is provided with a first vehicle body connection portion, a seat connection portion, a first safety belt buckle connection portion and a main body connection portion 1, the seat connection portion is rotatably connected to the backrest hinge, and the main body connection portion 1 is connected to the right part of the main body; the second mounting bracket is provided with a vehicle body and safety belt connection portion, a second safety belt buckle connection portion and a main body connection portion 2, and the main body connection portion 2 is connected to the left part of the main body.

[0006] Further, the first main body includes a first base plate, a first flange arranged on the right side of the first base plate, and a second flange arranged on the left side of the first base plate, and the main pipe connecting portion 1 includes a first notch arranged in the middle of the first flange and a second notch arranged in the middle of the second flange, and the first notch and the second notch match the shape of the outer surface of the main pipe body.

[0007] Further, the first seat belt buckle connection part includes a first seat belt buckle connection hole arranged at the front of the first flange and a second seat belt buckle connection hole arranged at the front of the second flange; the first flange is provided with a first reinforced limiting flange extending to the right, and the second flange is provided with a second reinforced limiting flange extending to the left; the first reinforced limiting flange is located between the first notch and the first seat belt buckle connection hole, and the second reinforced limiting flange is located between the second notch and the second seat belt buckle connection hole.

[0008] Furthermore, the rear portion of the first flange extends upward, and the seat connection portion is arranged at the upper portion of the first flange; the first body connection portion is arranged at the rear portion of the first main body, and a weight-reducing hole is arranged at the front portion of the first main body, and the weight-reducing hole is a rectangular through hole with a length along the front-to-back direction.

[0009] Furthermore, the first mounting bracket also includes a reinforcing plate, which includes a supporting portion and a mounting portion that are perpendicular to each other; the supporting portion is connected to the first base plate, the first flange and the second flange, the mounting portion extends backward and is parallel to the first base plate, and the left side of the mounting portion is connected to the second flange; a third body connecting portion is provided on the mounting portion, and the third body connecting portion and the first body connecting portion are through holes whose axes are parallel to each other.

[0010] Furthermore, the second mounting bracket includes a second base plate and a third flange, and the third flange is arranged on the right side or left side of the second base plate; the vehicle body and seat belt connecting part is arranged at the rear of the second base plate, and anti-rotation limit parts are respectively arranged on the left and right sides of the vehicle body and seat belt connecting part.

[0011] Further, the second main pipe connection portion is a third notch arranged in the middle of the third flange, and the third notch matches the shape of the outer surface of the main pipe body; the second seat belt buckle connection portion is a third seat belt buckle connection hole arranged in the front of the third flange; the third flange is provided with a third reinforced limiting flange, and the third reinforced limiting flange is arranged between the third notch and the third seat belt buckle connection hole.

[0012] Furthermore, it also includes a right auxiliary tube body, a left auxiliary tube body, a right vehicle body connecting support and a left vehicle body connecting support, the tube diameters of the right auxiliary tube body and the left auxiliary tube body are smaller than the tube diameter of the main tube body, the left and right sides of the main tube body are connected to the left side of the right auxiliary tube body and the right side of the left auxiliary tube body, the right side of the right auxiliary tube body is connected to the right vehicle body connecting support, and the left side of the left auxiliary tube body is connected to the left vehicle body connecting support; at least one child seat fixing steel wire is respectively arranged on the right auxiliary tube body and the left auxiliary tube body.

[0013] Furthermore, a seat cushion fixing bracket is disposed in the middle of the main pipe body, or a seat cushion fixing bracket is disposed in the middle of the right auxiliary pipe body and the left auxiliary pipe body respectively.

[0014] A car in the present invention comprises the above-mentioned seat integrated mounting bracket assembly.

[0015] The beneficial effects of the present invention are: (1) The main body, the first mounting bracket and the second mounting bracket of the present invention are connected by welding into an assembly, which has a compact structure and integrates multiple connecting parts. The backrest hinge can rotate relative to the first main body to provide a forward rotation and folding function for the rear seat backrest. The seat connecting part can be connected to the one-piece die-cast body. The body and seat belt connecting part can be connected to the one-piece die-cast body and the rear seat belt at the same time. The first seat belt buckle connecting part and the second seat belt buckle connecting part can install multiple rear seat belt buckles. Therefore, the seat integrated mounting bracket assembly has many functions and a large number of mounting points.

[0016] (2) The first mounting bracket and the second mounting bracket of the present invention are connected through a main pipe, forming a Y-direction force transmission path, which is beneficial for transmitting the force divergence of the mounting point on the first mounting bracket to the second mounting bracket, and is also beneficial for transmitting the force divergence of the mounting point on the second mounting bracket to the first mounting bracket, thereby improving the stability and reliability of each mounting point.

[0017] (3) The present invention can be adaptively adjusted according to the installation point requirements of different vehicle models, has strong versatility, and can meet the human-machine layout requirements of different vehicle models without changing the one-piece die-cast body structure, which is conducive to the universalization of the body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration: Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention; Figure 2 It is an exploded view of the first embodiment of the present invention; Figure 3 An exploded view of a first mounting bracket according to Embodiment 1 of the present invention; Figure 4 This is a schematic structural diagram of the connection between the first main body and the reinforcing plate in the first embodiment of the present invention; Figure 5 It is a structural schematic diagram of the connection between the first mounting bracket and the rear seat belt buckle of the first embodiment of the present invention; Figure 6 This is a schematic structural diagram of a second mounting bracket according to Embodiment 1 of the present invention; Figure 7 It is a structural schematic diagram of a second mounting bracket, a rear seat belt buckle and a rear seat belt connection according to the first embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of Embodiment 2 of the present invention; Fig. 9 This is a schematic diagram of the structure of Embodiment 3 of the present invention; Fig.10 It is an exploded view of the left auxiliary pipe body, the left vehicle body connecting support, the child seat fixing wire and the seat cushion fixing bracket of the third embodiment of the present invention; Fig.11 This is a structural schematic diagram of the left auxiliary pipe body, the left vehicle body connecting support, the child seat fixing wire, the seat cushion fixing bracket and the rear seat cushion steel wire connection of the third embodiment of the present invention.

[0019] The following are marked in the accompanying drawings: 1- Main body; 2-first mounting bracket, 21-backrest hinge, 22-first main body, 221-first body connection part, 222-seat connection part, 223-first safety belt buckle connection part, 224-main pipe connection part 1, 225-first bottom plate, 226-first flange, 227-second flange, 228-weight reduction hole, 229-first reinforcement limit flange, 2210-second reinforcement limit flange, 23-reinforcement plate, 231-support part, 232-installation part, 233-third body connection part; 3-second mounting bracket, 31-body and seat belt connection part, 32-second seat belt buckle connection part, 33-main connecting part 2, 34-second bottom plate, 35-third flange, 36-third reinforced limiting flange, 37-anti-rotation limiting part; 4-right auxiliary tube body, 5-left auxiliary tube body, 6-right vehicle body connecting support, 7-left vehicle body connecting support, 8-child seat fixing wire, 9-seat cushion fixing bracket, 91-seat cushion steel wire fixing hole; 10-Rear seat safety belts, 11-Rear seat safety belt buckles, 12-Rear seat cushion steel wires. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] Embodiment 1: like Figure 1-Figure 7 As shown, a seat integrated mounting bracket assembly in this embodiment includes a main body 1, a first mounting bracket 2 and a second mounting bracket 3; the first mounting bracket 2 includes a first main body 22 and a backrest hinge 21, the first main body 22 is provided with a first body connection portion 221, a seat connection portion 222, a first safety belt buckle connection portion 223 and a main body connection portion 1 224, the seat connection portion 222 is rotatably connected to the backrest hinge 21, and the main body connection portion 1 224 is connected to the right part of the main body 1; the second mounting bracket 3 is provided with a body and safety belt connection portion 31, a second safety belt buckle connection portion 32 and a main body connection portion 2 33, and the main body connection portion 2 33 is connected to the left part of the main body 1.

[0022] The main body 1, the first mounting bracket 2 and the second mounting bracket 3 are connected into an assembly by welding, which has a compact structure and integrates multiple connecting parts. The backrest hinge 21 can rotate relative to the first main body 22 to provide a forward rotation and folding function for the rear seat backrest. The seat connecting part 222 can be connected to the one-piece die-cast body. The body and seat belt connecting part 31 can be connected to the one-piece die-cast body and the rear seat seat belt 10 at the same time. The first seat belt buckle connecting part 223 and the second seat belt buckle connecting part 32 can install multiple rear seat belt buckles 11. Therefore, the seat integrated mounting bracket assembly has many functions and a large number of installation points.

[0023] At the same time, the first mounting bracket 2 and the second mounting bracket 3 are connected through the main pipe 1 to form a Y-direction force transmission path (the Y direction is the left and right direction of the vehicle body), which is beneficial for transmitting the force divergence of the mounting point on the first mounting bracket 2 to the second mounting bracket 3, and is also beneficial for transmitting the force divergence of the mounting point on the second mounting bracket 3 to the first mounting bracket 2, thereby improving the stability and reliability of each mounting point.

[0024] In addition, it can be adaptively adjusted according to the installation point requirements of different models, and has strong versatility. It can meet the human-machine layout requirements of different models without changing the one-piece die-cast body structure, which is conducive to the universalization of the body.

[0025] In this embodiment, the first main body 22 includes a first bottom plate 225, a first flange 226 arranged on the right side of the first bottom plate 225, and a second flange 227 arranged on the left side of the first bottom plate 225. The main pipe connecting portion 224 includes a first notch arranged in the middle of the first flange 226 and a second notch arranged in the middle of the second flange 227. The first notch and the second notch match the shape of the outer surface of the main pipe body 1.

[0026] The main body 1 is a round tube, and the first notch and the second notch are both arc-shaped, and the main body 1 is placed on the first notch and the second notch and then fixedly connected by welding. The first bottom plate 225, the first flange 226 and the second flange 227 form a U-shaped structure with high strength and not easy to deform.

[0027] In this embodiment, the first seat belt buckle connection part 223 includes a first seat belt buckle connection hole arranged at the front of the first flange 226 and a second seat belt buckle connection hole arranged at the front of the second flange 227; the first flange 226 is provided with a first reinforced limiting flange 229 extending to the right, and the second flange 227 is provided with a second reinforced limiting flange 2210 extending to the left; the first reinforced limiting flange 229 is located between the first notch and the first seat belt buckle connection hole, and the second reinforced limiting flange 2210 is located between the second notch and the second seat belt buckle connection hole.

[0028] The first seat belt buckle connecting hole and the second seat belt buckle connecting hole can be used to install a rear seat belt buckle 11 respectively, the first reinforced limit flange 229 can enhance the strength of the first flange 226, and the second reinforced limit flange 2210 can enhance the strength of the second flange 227, thereby enhancing the overall strength of the first body 22, and the first reinforced limit flange 229 and the second reinforced limit flange 2210 can also limit the rotation angle of the rear seat belt buckle 11 respectively.

[0029] In this embodiment, the rear portion of the first flange 226 extends upward, and the seat connection portion 222 is arranged at the upper portion of the first flange 226; the first body connection portion 221 is arranged at the rear portion of the first main body 22, and a weight reduction hole 228 is arranged at the front portion of the first main body 22. The weight reduction hole 228 is a rectangular through hole with a length along the front-to-back direction. The weight reduction hole 228 can reduce the weight of the first mounting bracket 2, which is conducive to the lightweight of the entire vehicle.

[0030] In this embodiment, the first mounting bracket 2 also includes a reinforcing plate 23, and the reinforcing plate 23 includes a supporting portion 231 and a mounting portion 232 which are perpendicular to each other; the supporting portion 231 is connected to the first base plate 225, the first flange 226 and the second flange 227, the mounting portion 232 extends backward and is parallel to the first base plate 225, and the left side of the mounting portion 232 is connected to the second flange 227; a third body connecting portion 233 is provided on the mounting portion 232, and the third body connecting portion 233 and the first body connecting portion 221 are through holes whose axes are parallel to each other.

[0031] The strength of the first mounting bracket 2 is further enhanced by the reinforcing plate 23, and the third body connecting portion 233 and the first body connecting portion 221 are two through holes with axes parallel to each other, which can match the one-piece die-cast body, avoiding the inability to reserve corresponding matching structures in the one-piece die-cast body (such as nuts in the die-cast body, etc.) due to the different axial angles of the through holes.

[0032] In this embodiment, the second mounting bracket 3 includes a second base plate 34 and a third flange 35, and the third flange 35 is arranged on the right side or left side of the second base plate 34; the vehicle body and seat belt connecting part 31 is arranged at the rear of the second base plate 34, and the left and right sides of the vehicle body and seat belt connecting part 31 are respectively provided with anti-rotation limit parts 37.

[0033] The third flange 35 can increase the strength of the second mounting bracket 3; the body and seat belt connection portion 31 is a third seat belt buckle connection hole; the mounting hole of the rear seat belt 10, the third seat belt buckle connection hole and the one-piece die-cast body are connected by a bolt; the three share one bolt, making the structure compact and reducing the number of mounting points; the anti-rotation limit portion 37 can limit the rotation of the mounting structure of the rear seat belt 10.

[0034] In this embodiment, the second main pipe connection portion 33 is a third notch arranged in the middle of the third flange 35, and the third notch matches the shape of the outer surface of the main pipe body 1; the second seat belt buckle connection portion 32 is a third seat belt buckle connection hole arranged in the front of the third flange 35; the third flange 35 is provided with a third reinforced limiting flange 36, and the third reinforced limiting flange 36 is arranged between the third notch and the third seat belt buckle connection hole.

[0035] The main body 1 is a round tube, and the third notches are all arc-shaped. The main body 1 is placed on the third notches and then fixedly connected by welding. A rear seat belt buckle 11 can be installed in the third seat belt buckle connection hole, and the third reinforcing limit flange 36 can enhance the strength of the third flange 35, thereby enhancing the overall strength of the second mounting bracket 3, and the third reinforcing limit flange 36 can also limit the rotation angle of the rear seat belt buckle 11.

[0036] Embodiment 2: like Figure 8 As shown, a seat integrated mounting bracket assembly in this embodiment adds a seat cushion fixing bracket 9 on the basis of the first embodiment, and the seat cushion fixing bracket 9 is located in the middle of the main pipe body 1.

[0037] A seat cushion wire fixing hole 91 is provided on the seat cushion fixing bracket 9, and the seat cushion fixing bracket 9 is U-shaped. After the upper arc-shaped notch of the seat cushion fixing bracket 9 is welded to the main pipe body 1, a channel is formed between the bottom plate of the seat cushion fixing bracket 9 and the main pipe body 1. The rear seat cushion steel wire can pass through the channel and be fixed to the seat cushion steel wire fixing hole 91 on the bottom plate of the seat cushion fixing bracket 9 by bolts.

[0038] Embodiment three: like Figure 9-11 As shown, a seat integrated mounting bracket assembly in this embodiment is added with a right auxiliary tube body 4, a left auxiliary tube body 5, a right vehicle body connecting support 6 and a left vehicle body connecting support 7 on the basis of the first embodiment, the tube diameters of the right auxiliary tube body 4 and the left auxiliary tube body 5 are smaller than the tube diameter of the main tube body 1, the left and right sides of the main tube body 1 are connected to the left side of the right auxiliary tube body 4 and the right side of the left auxiliary tube body 5, the right side of the right auxiliary tube body 4 is connected to the right vehicle body connecting support 6, and the left side of the left auxiliary tube body 5 is connected to the left vehicle body connecting support 7; at least one child seat fixing steel wire 8 is respectively provided on the right auxiliary tube body 4 and the left auxiliary tube body 5.

[0039] The right body connecting bracket 6 and the left body connecting bracket 7 can be connected to the one-piece die-cast body to increase the installation points with the one-piece die-cast body. At the same time, the left and right sides of the main body 1 are connected to the right auxiliary tube body 4 and the left auxiliary tube body 5 through a tube shrinking process and a welding process. The right auxiliary tube body 4, the main body 1 and the left auxiliary tube body 5 are connected as a whole, forming a Y-direction force transmission path, which is beneficial to transmit the force of the installation point on the first mounting bracket 2 and the force divergence of the installation point on the second mounting bracket 3 to other positions, thereby improving the stability and reliability of each installation point.

[0040] There are fewer installation points on the right auxiliary pipe body 4 and the left auxiliary pipe body 5, and the strength requirement is lower than that of the main pipe body 1, so the pipe diameters of the right auxiliary pipe body 4 and the left auxiliary pipe body 5 are smaller. The three-section structure, its components can be flexibly applied to different vehicle models, expanding the scope of application, and the pipe diameters of different parts are adjusted according to the number of installation points to avoid performance waste.

[0041] One of the child seat fixing wires 8 is welded to the right auxiliary tube body 4, one of the child seat fixing wires 8 is welded to both the right auxiliary tube body 4 and the right vehicle body connecting bracket 6, one of the child seat fixing wires 8 is welded to the left auxiliary tube body 5, and one of the child seat fixing wires 8 is welded to both the left auxiliary tube body 5 and the left vehicle body connecting bracket 7. Both the right vehicle body connecting bracket 6 and the left vehicle body connecting bracket 7 are provided with a flange structure for increasing strength.

[0042] In this embodiment, a cushion fixing bracket 9 is respectively provided at the middle of the right auxiliary tube body 4 and the left auxiliary tube body 5. The seat cushion fixing bracket 9 is connected to the right auxiliary tube body 4 for explanation, and a cushion wire fixing hole 91 is provided on the seat cushion fixing bracket 9. The seat cushion fixing bracket 9 is U-shaped. After the arc-shaped notch on the upper part of the seat cushion fixing bracket 9 is welded to the right auxiliary tube body 4, a channel is formed between the bottom plate of the seat cushion fixing bracket 9 and the right auxiliary tube body 4, and the rear seat cushion wire 12 can pass through the channel and be fixed to the cushion wire fixing hole 91 on the bottom plate of the seat cushion fixing bracket 9 by bolts.

[0043] Embodiment 4: A car in this embodiment includes an integral die-cast body and the seat integrated mounting bracket assembly of embodiment one, two, three or four, wherein the seat integrated mounting bracket assembly is mounted on the integral die-cast body.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A seat integrated mounting bracket assembly, characterized in that: The invention comprises a main body (1), a first mounting bracket (2) and a second mounting bracket (3); the first mounting bracket (2) comprises a first main body (22) and a backrest hinge (21); the first main body (22) is provided with a first vehicle body connection portion (221), a seat connection portion (222), a first safety belt buckle connection portion (223) and a main body connection portion 1 (224); the seat connection portion (222) is rotatably connected to the backrest hinge (21); the main body connection portion 1 (224) is connected to the right part of the main body (1); the second mounting bracket (3) is provided with a vehicle body and safety belt connection portion (31), a second safety belt buckle connection portion (32) and a main body connection portion 2 (33); the main body connection portion 2 (33) is connected to the left part of the main body (1).

2. The seat integrated mounting bracket assembly according to claim 1, characterized in that: The first main body (22) comprises a first bottom plate (225), a first flange (226) arranged on the right side of the first bottom plate (225), and a second flange (227) arranged on the left side of the first bottom plate (225); the first main pipe connecting portion (224) comprises a first notch arranged in the middle of the first flange (226) and a second notch arranged in the middle of the second flange (227); the first notch and the second notch match the shape of the outer surface of the main pipe body (1).

3. The seat integrated mounting bracket assembly according to claim 2, characterized in that: The first safety belt buckle connection portion (223) comprises a first safety belt buckle connection hole arranged at the front of the first flange (226) and a second safety belt buckle connection hole arranged at the front of the second flange (227); the first flange (226) is provided with a first reinforcing limit flange (229) extending to the right, and the second flange (227) is provided with a second reinforcing limit flange (2210) extending to the left; the first reinforcing limit flange (229) is located between the first notch and the first safety belt buckle connection hole, and the second reinforcing limit flange (2210) is located between the second notch and the second safety belt buckle connection hole.

4. The seat integrated mounting bracket assembly according to claim 2, characterized in that: The rear portion of the first flange (226) extends upward, and the seat connection portion (222) is arranged at the upper portion of the first flange (226); the first body connection portion (221) is arranged at the rear portion of the first main body (22), and a weight-reducing hole (228) is arranged at the front portion of the first main body (22), and the weight-reducing hole (228) is a rectangular through hole whose length is along the front-to-back direction.

5. The seat integrated mounting bracket assembly according to claim 3, characterized in that: The first mounting bracket (2) further comprises a reinforcing plate (23), the reinforcing plate (23) comprising a supporting portion (231) and a mounting portion (232) which are perpendicular to each other; the supporting portion (231) is connected to the first bottom plate (225), the first flange (226) and the second flange (227); the mounting portion (232) extends rearwards and is parallel to the first bottom plate (225); the left side of the mounting portion (232) is connected to the second flange (227); a third body connecting portion (233) is provided on the mounting portion (232); the third body connecting portion (233) and the first body connecting portion (221) are through holes whose axes are parallel to each other.

6. The seat integrated mounting bracket assembly according to claim 1, characterized in that: The second mounting bracket (3) comprises a second base plate (34) and a third flange (35), wherein the third flange (35) is arranged on the right side or the left side of the second base plate (34); the vehicle body and safety belt connecting portion (31) is arranged at the rear of the second base plate (34), and anti-rotation limiting portions (37) are respectively arranged on the left and right sides of the vehicle body and safety belt connecting portion (31).

7. The seat integrated mounting bracket assembly according to claim 6, characterized in that: The second main pipe connection portion (33) is a third notch arranged in the middle of the third flange (35), and the third notch matches the shape of the outer surface of the main pipe body (1); the second safety belt buckle connection portion (32) is a third safety belt buckle connection hole arranged in the front of the third flange (35); the third flange (35) is provided with a third reinforcing limit flange (36), and the third reinforcing limit flange (36) is arranged between the third notch and the third safety belt buckle connection hole.

8. The seat integrated mounting bracket assembly according to claim 1, characterized in that: The invention also comprises a right auxiliary tube body (4), a left auxiliary tube body (5), a right vehicle body connecting support (6) and a left vehicle body connecting support (7); the diameters of the right auxiliary tube body (4) and the left auxiliary tube body (5) are both smaller than the diameter of the main tube body (1); the left and right sides of the main tube body (1) are connected to the left side of the right auxiliary tube body (4) and the right side of the left auxiliary tube body (5); the right side of the right auxiliary tube body (4) is connected to the right vehicle body connecting support (6); the left side of the left auxiliary tube body (5) is connected to the left vehicle body connecting support (7); and at least one child seat fixing wire (8) is respectively provided on the right auxiliary tube body (4) and the left auxiliary tube body (5).

9. The seat integrated mounting bracket assembly according to claim 8, characterized in that: A seat cushion fixing bracket (9) is arranged in the middle of the main pipe body (1), or a seat cushion fixing bracket (9) is arranged in the middle of the right auxiliary pipe body (4) and the left auxiliary pipe body (5).

10. An automobile, characterized in that: It comprises a seat-integrated mounting bracket assembly as described in any one of claims 1-9.

Images