Seat mounting bracket connected to automobile restraint system and automobile seat

Abstract

This application relates to a seat mounting bracket and a vehicle seat connected to a vehicle restraint system. The bracket comprises: a bracket body, comprising a mounting base plate, one side of the mounting base plate having a first flange folded upward, and the other side of the mounting base plate having a second flange folded upward; a link bracket mounting plate, connected to the top of the first flange and extending upward, with a first threaded hole formed on the link bracket mounting plate by tapping; and a seat belt buckle mounting plate, connected to the top of the second flange and extending upward, with a second threaded hole formed on the link bracket mounting plate by tapping. The bracket body, link bracket mounting plate, and seat belt buckle mounting plate are integrally stamped and formed from steel plate. This application effectively reduces the number of parts and the space required for layout. Furthermore, its structure enhances the tensile strength of the seat mounting bracket, preventing the seat belt fixing points from cracking and failing during a vehicle collision.

Description

Technical Field

[0001] The present application relates to the technical field of automobile seats, and in particular to a seat mounting bracket connected to an automobile restraint system and an automobile seat. Background Art

[0002] The restraint system is a fundamental device for protecting drivers and passengers during a collision. It prevents passengers from sliding forward due to inertia and potentially falling off their seats, potentially causing injury, during sudden deceleration or emergency braking. It can be life-saving. The seatbelt buckle is a crucial component of the restraint system.

[0003] For vehicles with seats that can be adjusted forward and backward, the seat belt buckle is usually installed on a sliding rail seat belt buckle mounting bracket on the inner side of the seat cushion frame. This requires that the seat cushion frame can not only realize the installation of the seat belt buckle, but also have sufficient strength to ensure the normal operation of the restraint system.

[0004] In the related art, the existing seat belt buckle fixing structure adopts a split design of a seat belt buckle bracket and a link bracket. The seat belt buckle bracket and the link bracket are fixed together on the seat slide rail, wherein a seat belt buckle bracket nut is welded on the seat belt buckle bracket, and a link bracket nut is welded on the link bracket.

[0005] Due to the space required for the seat belt buckle bracket nut and the link bracket nut, the seat belt buckle bracket and the link bracket cannot be designed as an integrated whole, resulting in a large number of parts required to assemble the seat belt buckle fixing structure; the space required for the parts layout is also relatively large, and there are deficiencies in terms of economy and space utilization, as well as difficulty in assembly. Summary of the Invention

[0006] The embodiments of the present application provide a seat mounting bracket and a car seat connected to a car restraint system to solve the problem in the related art that the seat belt buckle fixing structure adopts a split design of the seat belt buckle bracket and the link bracket, which has insufficient space utilization and assembly difficulty.

[0007] A first aspect of an embodiment of the present application provides a seat mounting bracket connected to a vehicle restraint system, comprising:

[0008] The bracket body includes a mounting base, one side of the mounting base is provided with a first flange folded upward, and the other side of the mounting base is provided with a second flange folded upward;

[0009] a link bracket mounting plate, the link bracket mounting plate being connected to the top of the first flange and extending upward, the link bracket mounting plate being formed with a first threaded hole by tapping;

[0010] a seat belt buckle mounting plate, the seat belt buckle mounting plate being connected to the top of the second flange and extending upward, the seat belt buckle mounting plate being formed with a second threaded hole by tapping;

[0011] The bracket body, the link bracket mounting plate and the safety belt buckle mounting plate are integrally stamped and formed structures of steel plate materials.

[0012] In some embodiments: two downwardly protruding sunken platforms are provided on the mounting base, and the two sunken platforms are arranged at intervals along the length direction of the mounting base, one of the sunken platforms is provided with a first mounting hole for fixing the bracket body on the seat rail, and the other sunken platform is provided with a long waist hole for fixing the bracket body on the seat rail.

[0013] In some embodiments: the mounting base includes a guide rail connecting section and an avoidance protrusion section, the avoidance protrusion section is located at one end of the guide rail connecting section and above the guide rail connecting section, and the guide rail connecting section and the avoidance protrusion section are connected by an intermediate transition section arc transition.

[0014] In some embodiments: the first threaded hole on the link bracket mounting plate and the second threaded hole on the seat belt buckle mounting plate are spaced apart along the length direction of the bracket body, the first threaded hole protrudes toward the direction close to the seat belt buckle mounting plate, and the second threaded hole protrudes toward the direction close to the link bracket mounting plate.

[0015] In some embodiments: a positioning hole is provided on the second flange, the positioning hole is located below the second threaded hole, the connection between the safety belt buckle mounting plate and the second flange is smoothly transitioned through rounded corners, and the connection between the link bracket mounting plate and the first flange is smoothly transitioned through rounded corners.

[0016] In some embodiments: a link bracket avoidance groove protruding toward the safety belt buckle mounting plate is stamped out at the connection between the link bracket mounting plate and the first flange, and a plurality of reinforcing ribs are stamped out at the connection between the first flange and the second flange and the mounting base plate.

[0017] In some embodiments: the link bracket mounting plate is coplanar with the first flange, the seat belt buckle mounting plate is coplanar with the second flange, and the cross-section of the seat mounting bracket formed by the bracket body, the link bracket mounting plate and the seat belt buckle mounting plate is a "U"-shaped structure with the opening facing upward.

[0018] A second aspect of the embodiments of the present application provides a car seat, comprising:

[0019] A seat cushion frame and a seat rail, wherein a seat mounting bracket for connecting a vehicle restraint system as described in any of the above embodiments is connected between the seat cushion frame and the seat rail.

[0020] The link bracket mounting plate of the seat mounting bracket is connected to the link bracket via a fastener, and the link bracket is fixedly connected to the seat cushion frame;

[0021] The support body of the seat mounting support is fixedly connected to the seat guide rail, and the safety belt buckle mounting plate of the seat mounting support is connected to the safety belt buckle through a fastener.

[0022] In some embodiments: the seat cushion frame includes a seat cushion frame tube, both ends of the seat cushion frame tube are rotatably connected to the seat cushion frame, the link bracket is fixedly connected to one end of the seat cushion frame tube, and the other end of the seat cushion frame tube is fixedly connected to the gear plate.

[0023] In some embodiments: there are two seat rails, and the rear end of each seat rail is connected to the seat mounting bracket, the seat mounting bracket located on the inner side of the car seat is connected to the seat belt buckle and link bracket, and the seat mounting bracket located on the outer side of the car seat is connected to the seat belt lower fixed point mounting mechanism and link bracket.

[0024] The beneficial effects of the technical solution provided by this application include:

[0025] An embodiment of the present application provides a seat mounting bracket and a car seat connected to a car restraint system. Since the seat mounting bracket connected to a car restraint system of the present application is provided with a bracket body, the bracket body includes a mounting base, one side of the mounting base is provided with a first flange folded upward, and the other side of the mounting base is provided with a second flange folded upward; a link bracket mounting plate, the link bracket mounting plate is connected to the top of the first flange and extends upward, and a first threaded hole is formed on the link bracket mounting plate by punching and tapping; a seat belt buckle mounting plate, the seat belt buckle mounting plate is connected to the top of the second flange and extends upward, and a second threaded hole is formed on the seat belt buckle mounting plate by punching and tapping; the bracket body, the link bracket mounting plate and the seat belt buckle mounting plate are an integral stamping structure of steel plate material.

[0026] Therefore, the seat mounting bracket for connecting to the vehicle restraint system of the present application is provided with an upwardly extending link bracket mounting plate on the first flange of the bracket body. The link bracket mounting plate is formed with a first threaded hole through a punching and tapping process. An upwardly extending seat belt buckle mounting plate is provided on the second flange of the bracket body. The seat belt buckle mounting plate is formed with a second threaded hole through a punching and tapping process. The bracket body, link bracket mounting plate, and seat belt buckle mounting plate are integrally stamped and formed from steel sheet material. This seat mounting bracket effectively reduces the number of parts and the space required for its layout. Furthermore, its structure enhances the tensile strength of the seat mounting bracket, preventing the seat belt fixing points from cracking and failing in the event of a vehicle collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Figure 1 This is a structural stereogram of the seat mounting bracket from a first perspective according to an embodiment of the present application;

[0029] Figure 2 This is a structural stereogram of the seat mounting bracket from a second perspective according to an embodiment of the present application;

[0030] Figure 3 This is a structural front view of the seat mounting bracket according to an embodiment of the present application;

[0031] Figure 4 for Figure 3 Structural cross-sectional view along the AA direction;

[0032] Figure 5 for Figure 4 A partial enlarged view of point A in the middle;

[0033] Figure 6 This is a rear view of the structure of the seat mounting bracket according to an embodiment of the present application;

[0034] Figure 7 for Figure 6 Structural cross-sectional view and partial enlarged view along the BB direction;

[0035] Figure 8 This is a top view of the structure of the seat mounting bracket according to an embodiment of the present application;

[0036] Figure 9 for Figure 8 Structural cross-sectional view along CC direction;

[0037] Figure 10 This is a left side view of the structure of the seat mounting bracket according to an embodiment of the present application;

[0038] Figure 11 This is a schematic diagram of the structure of a car seat according to an embodiment of the present application.

[0039] Reference numerals:

[0040] 10. Bracket body; 11. Mounting base; 11a. Guide rail connection section; 11b. Avoidance raised section; 11c. Intermediate transition section; 12. First flange; 13. Second flange; 14. Sink; 15. First mounting hole; 16. Long waist hole; 17. Reinforcement rib;

[0041] 20. Link bracket mounting plate; 21. First threaded hole; 22. Link bracket avoidance slot; 30. Safety belt buckle mounting plate; 31. Second threaded hole; 32. Positioning hole;

[0042] 100. Seat mounting bracket; 201. Link bracket; 202. Safety belt buckle; 203. Tooth plate; 204. Seat cushion frame tube; 205. Seat rail; 206. Seat cushion frame. DETAILED DESCRIPTION

[0043] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0044] The embodiment of the present application provides a seat mounting bracket and a car seat connected to a car restraint system, which can solve the problems in the related art that the seat belt buckle fixing structure adopts a split design of the seat belt buckle bracket and the link bracket, which has insufficient space utilization and assembly difficulty.

[0045] See also Figure 1 and Figure 2 As shown, a first aspect of an embodiment of the present application provides a seat mounting bracket connected to a vehicle restraint system, the seat mounting bracket 100 comprising:

[0046] The bracket body 10 includes a mounting base 11, which has a rectangular plate structure. A first flange 12 folded upward is provided on one side of the mounting base 11, and a second flange 13 folded upward is provided on the other side of the mounting base 11; the first flange 12 and the second flange 13 are parallel to each other and spaced apart.

[0047] The link bracket mounting plate 20 is connected to the top of the first flange 12 and extends upward. A first threaded hole 21 is formed on the link bracket mounting plate 20 by punching and tapping. The link bracket mounting plate 20 is connected to the link bracket 201 by punching and tapping.

[0048] The seat belt buckle mounting plate 30 is connected to the top of the second flange 13 and extends upward. A second threaded hole 31 is formed on the seat belt buckle mounting plate 30 by punching and tapping. The seat belt buckle mounting plate 30 is formed with a second threaded hole 31 by punching and tapping to connect the seat belt buckle 202.

[0049] The bracket body 10, link bracket mounting plate 20, and seatbelt buckle mounting plate 30 are constructed from a single piece of steel, laser-cut and then stamped using a die. This structure offers high structural strength, compact footprint, and ease of installation.

[0050] The seat mounting bracket for connecting to the vehicle restraint system of the present embodiment has an upwardly extending link bracket mounting plate 20 on the first flange 12 of the bracket body 10. A first threaded hole 21 is formed in the link bracket mounting plate 20 through tapping and punching. An upwardly extending seat belt buckle mounting plate 30 is provided on the second flange 13 of the bracket body 10. A second threaded hole 31 is formed in the seat belt buckle mounting plate 30 through tapping and punching.

[0051] Moreover, the bracket body 10, the link bracket mounting plate 20 and the seat belt buckle mounting plate 30 are an integrally stamped structure of steel plate material. The seat mounting bracket 100 can effectively reduce the number of parts and the space required for layout. At the same time, its structure can enhance the tensile strength of the seat mounting bracket 100 and prevent the seat belt fixing installation point from being torn and failing during a car collision.

[0052] In some alternative embodiments: See Figure 8 and Figure 9 As shown, an embodiment of the present application provides a seat mounting bracket connected to a vehicle restraint system. The mounting base 11 of the seat mounting bracket 100 is provided with two downwardly protruding sinks 14 , and the two sinks 14 are spaced apart along the length direction of the mounting base 11 .

[0053] Both sinkers 14 are circular structures. One of the sinkers 14 is located at the rear end of the mounting base 11, and is provided with a first mounting hole 15 for fixing the bracket body 10 on the seat guide rail 205. The other sinker 14 is located at the front end of the mounting base 11, and is provided with a long waist hole 16 for fixing the bracket body 10 on the seat guide rail 205.

[0054] The depth of the two sinks in the embodiment of the present application is 1mm. The sink 14 can change the mounting surface between the seat rail 205 and the bracket body 10 from a large plane to two small planes, effectively improving the assembly accuracy. The long waist hole 16, the rear end of the sinking platform 14 is opened The first mounting hole 15 is provided.

[0055] In some alternative embodiments: See Figure 8 and Figure 9 As shown, an embodiment of the present application provides a seat mounting bracket for connecting to a vehicle restraint system. The mounting base 11 of the seat mounting bracket 100 includes a guide rail connecting section 11a and a relief protrusion section 11b. The relief protrusion section 11b is located at the front end of and above the guide rail connecting section 11a. The guide rail connecting section 11a and the relief protrusion section 11b are connected by an intermediate transition section 11c, which is an arc-shaped transition.

[0056] The avoidance protrusion section 11b of the embodiment of the present application is located at the front end of the guide rail connecting section 11a and above the guide rail connecting section 11a. The height difference between the guide rail connecting section 11a and the avoidance protrusion section 11b is 16 mm, which can effectively avoid other components on the seat rail 205, reduce the contact area with the seat rail 205, and at the same time, effectively increase the tensile strength of the bracket body 10.

[0057] In some alternative embodiments: See Figures 3 to 7 As shown, an embodiment of the present application provides a seat mounting bracket connected to a vehicle restraint system, wherein the first threaded hole 21 on the link bracket mounting plate 20 of the seat mounting bracket 100 is extracted into an M9 threaded hole by a tapping process, the height of the first threaded hole 21 is 3 mm, and the thread depth in the hole is 5 mm.

[0058] The edge of the hole where the first threaded hole 21 fits with the link bracket mounting plate 20 has a rounded corner of R1, which can facilitate the passage of bolts; the link bracket 201 is connected to the outer side of the link bracket mounting plate 20 through the bolt through this first threaded hole 21, and the link bracket 201 can swing relative to the link bracket mounting plate 20 with the bolt as the rotating axis.

[0059] The second threaded hole 31 on the seat belt buckle mounting plate 30 of the seat mounting bracket 100 is extracted into a 7 / 16 threaded hole through a tapping process. The height of the second threaded hole 31 is 4mm, and the thread depth in the hole is 6mm. The edge of the hole where the second threaded hole 31 fits with the seat belt buckle mounting plate 30 has a rounded corner of R0.5 to facilitate the passage of bolts.

[0060] The first threaded hole 21 on the link bracket mounting plate 20 and the second threaded hole 31 on the seat belt buckle mounting plate 30 are spaced apart along the length direction of the bracket body 10. The first threaded hole 21 protrudes toward the direction close to the seat belt buckle mounting plate 30, and the second threaded hole 31 protrudes toward the direction close to the link bracket mounting plate 20.

[0061] The spacing between the first threaded hole 21 and the second threaded hole 31 along the length direction of the bracket body 10 is 32 mm, and the spacing between the first threaded hole 21 and the second threaded hole 31 along the height direction of the bracket body 10 is 6.5 mm, so that the first threaded hole 21 and the second threaded hole 31 are staggered with each other, thereby facilitating the first threaded hole 21 and the second threaded hole 31 to be processed simultaneously by the tapping process.

[0062] In some alternative embodiments: See Figure 1 and Figure 2 As shown, the embodiment of the present application provides a seat mounting bracket for connecting to a vehicle restraint system. The second flange 13 of the seat mounting bracket 100 has a positioning hole 32 formed therein. The positioning hole 32 is located below the second threaded hole 31. The positioning hole 32 is a 7 mm x 7 mm square hole (with a fillet radius of 1 mm).

[0063] This positioning hole 32 is used to position the seatbelt buckle 202, preventing it from rotating during assembly and reducing thread scratching. The smooth, rounded transition between the seatbelt buckle mounting plate 30 and the second flange 13, and the smooth, rounded transition between the link bracket mounting plate 20 and the first flange 12, effectively reduces stress concentration and the risk of seat mounting bracket 100 cracking and failure during a collision.

[0064] In some alternative embodiments: See Figure 1 、 Figure 2 and Figure 10 As shown, an embodiment of the present application provides a seat mounting bracket connected to a vehicle restraint system, wherein a link bracket avoidance groove 22 protruding toward the seat belt buckle mounting plate 30 is stamped out at the connection between the link bracket mounting plate 20 of the seat mounting bracket 100 and the first flange 12, and a plurality of reinforcing ribs 17 are stamped out at the connection between the first flange 12 and the second flange 13 and the mounting base plate 11.

[0065] In this embodiment, a link bracket avoidance groove 22 is arranged on the outer side of the connection between the link bracket mounting plate 20 and the first flange 12. This link bracket avoidance groove 22 not only avoids the link bracket 201 but also effectively enhances the tensile strength of the seat mounting bracket 100. Four triangular reinforcement ribs 17 are provided between the bottom surface of the bracket body 10 and the first and second flanges 12 and 13 to further enhance the structural strength of the seat mounting bracket 100.

[0066] In some alternative embodiments: See Figure 1 、 Figure 2 and Figure 10 As shown, an embodiment of the present application provides a seat mounting bracket connected to a vehicle restraint system, wherein the link bracket mounting plate 20 of the seat mounting bracket 100 is coplanar with the first flange 12, and the seat belt buckle mounting plate 30 is coplanar with the second flange 13. The cross-section of the seat mounting bracket 100 formed by the bracket body 10, the link bracket mounting plate 20 and the seat belt buckle mounting plate 30 is a "U"-shaped structure with the opening facing upward.

[0067] See also Figure 11 As shown, the second aspect of the embodiment of the present application provides a car seat, comprising:

[0068] A seat mounting bracket 100 for connecting a vehicle restraint system, as described in any of the above embodiments, is connected between the seat frame and the seat rail 205. The link bracket mounting plate 20 of the seat mounting bracket 100 is connected to a link bracket 201 via fasteners, and the link bracket 201 is fixedly connected to the seat frame.

[0069] The bracket body 10 of the seat mounting bracket 100 is fixedly connected to the seat rail 205. The seat belt buckle mounting plate 30 of the seat mounting bracket 100 is connected to the seat belt buckle 202 via fasteners. The seat cushion framework includes a seat cushion frame tube 204, which is pivotally connected to the seat cushion frame 206 at both ends. The link bracket 201 is fixedly connected to one end of the seat cushion frame tube 204, and the other end of the seat cushion frame tube 204 is fixedly connected to the tooth plate 203.

[0070] There are two seat rails 205, and the rear end of each seat rail 205 is connected to a seat mounting bracket 100. The seat mounting bracket 100 located on the inner side of the car seat is connected to the seat belt buckle 202 and the link bracket 201, and the seat mounting bracket 100 located on the outer side of the car seat is connected to the seat belt lower fixed point mounting mechanism (not shown in the figure) and the link bracket 201.

[0071] How it works

[0072] An embodiment of the present application provides a seat mounting bracket and a car seat connected to a car restraint system. Since the seat mounting bracket connected to a car restraint system of the present application is provided with a bracket body 10, the bracket body 10 includes a mounting base 11, one side of the mounting base 11 is provided with a first flange 12 folded upward, and the other side of the mounting base 11 is provided with a second flange 13 folded upward; a link bracket mounting plate 20, the link bracket mounting plate 20 is connected to the top of the first flange 12 and extends upward, and a first threaded hole 21 is formed on the link bracket mounting plate 20 by punching and tapping; a seat belt buckle mounting plate 30, the seat belt buckle mounting plate 30 is connected to the top of the second flange 13 and extends upward, and a second threaded hole 31 is formed on the seat belt buckle mounting plate 30 by punching and tapping; the bracket body 10, the link bracket mounting plate 20 and the seat belt buckle mounting plate 30 are an integral stamping structure of steel plate material.

[0073] Therefore, the seat mounting bracket 10 of the present application, which is connected to the vehicle restraint system, has an upwardly extending link bracket mounting plate 20 on the first flange 12 of the bracket body 10. The link bracket mounting plate 20 has a first threaded hole 21 formed therein through a punching and tapping process. An upwardly extending seat belt buckle mounting plate 30 is also provided on the second flange 13 of the bracket body 10. The seat belt buckle mounting plate 30 has a second threaded hole 32 formed therein through a punching and tapping process. Furthermore, the bracket body 10, link bracket mounting plate 20, and seat belt buckle mounting plate 30 are integrally stamped and formed from steel sheet material. This seat mounting bracket 100 effectively reduces the number of parts and the space required for their arrangement. Furthermore, its structure enhances the tensile strength of the seat mounting bracket 100, preventing the seat belt fixing points from cracking and failing during a vehicle collision.

[0074] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0075] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0076] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A seat mounting bracket for connecting a vehicle restraint system, characterized in that: include: A bracket body (10), the bracket body (10) comprising a mounting base (11), one side of the mounting base (11) being provided with a first flange (12) folded upward, and the other side of the mounting base (11) being provided with a second flange (13) folded upward; A link bracket mounting plate (20), the link bracket mounting plate (20) being connected to the top of the first flange (12) and extending upward, and a first threaded hole (21) being formed on the link bracket mounting plate (20) by tapping. A safety belt buckle mounting plate (30), the safety belt buckle mounting plate (30) being connected to the top of the second flange (13) and extending upward, and a second threaded hole (31) being formed on the safety belt buckle mounting plate (30) by tapping and punching; The bracket body (10), the link bracket mounting plate (20) and the safety belt buckle mounting plate (30) are integrally stamped and formed structures of steel plate material.

2. A seat mounting bracket for connecting a vehicle restraint system according to claim 1, characterized in that: The mounting base (11) is provided with two downwardly protruding sinks (14), and the two sinks (14) are spaced apart along the length direction of the mounting base (11). One of the sinks (14) is provided with a first mounting hole (15) for fixing the bracket body (10) on the seat guide rail (205), and the other sink (14) is provided with a long waist hole (16) for fixing the bracket body (10) on the seat guide rail (205).

3. A seat mounting bracket for connecting a vehicle restraint system according to claim 1 or 2, characterized in that: The mounting base plate (11) comprises a guide rail connecting section (11a) and an avoidance protrusion section (11b); the avoidance protrusion section (11b) is located at one end of the guide rail connecting section (11a) and above the guide rail connecting section (11a); the guide rail connecting section (11a) and the avoidance protrusion section (11b) are connected in a circular arc transition via an intermediate transition section (11c).

4. The seat mounting bracket for connecting to a vehicle restraint system according to claim 1, wherein: The first threaded hole (21) on the link bracket mounting plate (20) and the second threaded hole (31) on the safety belt buckle mounting plate (30) are spaced apart along the length direction of the bracket body (10), the first threaded hole (21) protrudes in a direction close to the safety belt buckle mounting plate (30), and the second threaded hole (31) protrudes in a direction close to the link bracket mounting plate (20).

5. The seat mounting bracket for connecting to a vehicle restraint system according to claim 1, wherein: A positioning hole (32) is provided on the second flange (13), and the positioning hole (32) is located below the second threaded hole (31). The connection between the safety belt buckle mounting plate (30) and the second flange (13) is smoothly transitioned through a rounded corner, and the connection between the link bracket mounting plate (20) and the first flange (12) is smoothly transitioned through a rounded corner.

6. The seat mounting bracket for connecting to a vehicle restraint system according to claim 1, wherein: A link bracket avoidance groove (22) protruding toward the safety belt buckle mounting plate (30) is punched out at the connection between the link bracket mounting plate (20) and the first flange (12), and a plurality of reinforcing ribs (17) are punched out at the connection between the first flange (12) and the second flange (13) and the mounting base plate (11).

7. The seat mounting bracket for connecting to a vehicle restraint system according to claim 1, wherein: The link bracket mounting plate (20) is coplanar with the first flange (12), and the safety belt buckle mounting plate (30) is coplanar with the second flange (13). The cross section of the seat mounting bracket (100) formed by the bracket body (10), the link bracket mounting plate (20) and the safety belt buckle mounting plate (30) is a "U"-shaped structure with the opening facing upward.

8. A car seat, characterized in that: include: A seat cushion frame and a seat rail (205), wherein a seat mounting bracket (100) for connecting a vehicle restraint system according to any one of claims 1 to 7 is connected between the seat cushion frame and the seat rail (205), The link bracket mounting plate (20) of the seat mounting bracket (100) is connected to a link bracket (201) via a fastener, and the link bracket (201) is fixedly connected to the seat cushion frame; The support body (10) of the seat mounting support (100) is fixedly connected to the seat guide rail (205), and the safety belt buckle mounting plate (30) of the seat mounting support (100) is connected to the safety belt buckle (202) via a fastener.

9. The car seat according to claim 8, wherein: The seat cushion frame comprises a seat cushion frame tube (204), both ends of the seat cushion frame tube (204) are rotatably connected to a seat cushion frame (206), the link bracket (201) is fixedly connected to one end of the seat cushion frame tube (204), and the other end of the seat cushion frame tube (204) is fixedly connected to a tooth plate (203).

10. The car seat according to claim 8, characterized in that: Two seat rails (205) are provided, and the rear end of each seat rail (205) is connected to the seat mounting bracket (100). The seat mounting bracket (100) located on the inner side of the car seat is connected to the safety belt buckle (202) and the link bracket (201), and the seat mounting bracket (100) located on the outer side of the car seat is connected to the safety belt lower fixing point mounting mechanism and the link bracket (201).

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