Backrest framework of automobile seat

Abstract

The utility model provides a backrest framework of an automobile seat, which comprises a back plate and an annular support frame, the back plate is welded and fixed on the rear side of the support frame, and the left side and the right side of the lower end of the support frame are respectively welded and fixed with a rotating frame on one angle regulator; the backrest framework further comprises two connecting frames; the two connecting frames are fixedly welded to the inner side of one rotating frame, a supporting step is arranged on the rear side of each connecting frame, and the supporting steps abut against the front side face and the bottom face of the lower end of the supporting frame and are fixedly welded to the front side face and the bottom face of the lower end of the supporting frame; according to the utility model, the connection firmness between the supporting frame and the rotating frame in the angle regulator can be improved, so that the situation of unsoldering between the supporting frame and the rotating frame in the angle regulator can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seat accessories, in particular to a backrest frame of an automobile seat. Background Art

[0002] The backrest frame of a car seat is an important component of a car seat. The backrest frame of car seats currently on the market includes a back plate and a ring-shaped support frame. The back plate is welded and fixed to the rear side of the support frame, and the left and right sides of the lower end of the support frame are respectively welded and fixed to a rotating frame on one of the angle adjusters. However, when the backrest frame of the car seat is in use, when the support frame and the back plate rely on the angle adjuster to adjust the angle, the support frame has a poor connection firmness with the rotating frame in the angle adjuster, which easily leads to the desoldering of the support frame and the rotating frame in the angle adjuster. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a backrest frame of a car seat, which can improve the connection firmness between the support frame and the rotating frame in the angle adjuster, thereby effectively avoiding the desoldering of the support frame and the rotating frame in the angle adjuster.

[0004] The utility model provides a backrest frame of an automobile seat, comprising a back plate and a ring-shaped supporting frame, wherein the back plate is welded and fixed to the rear side of the supporting frame, and the left and right sides of the lower end of the supporting frame are respectively welded and fixed to a rotating frame on one of the angle adjusters; the backrest frame also comprises two connecting frames; the two connecting frames are respectively welded and fixed to the inner side of one of the rotating frames, and a supporting step is arranged on the rear side of each connecting frame, and the supporting step abuts against and is welded to the front side surface and the bottom surface of the lower end of the supporting frame.

[0005] The utility model arranges two connecting frames. Since the two connecting frames are respectively welded and fixed to the inner side of one of the rotating frames, and a supporting step is arranged on the rear side of each connecting frame, the supporting step abuts against and is welded to the front side surface and the bottom surface of the lower end of the supporting frame, thereby improving the connection firmness between the supporting frame and the rotating frame in the angle adjuster, and further effectively avoiding the desoldering of the supporting frame and the rotating frame in the angle adjuster.

[0006] In a possible embodiment, an "L"-shaped folded edge folded inward is provided at the edge of the support step, and the folded edge is abutted against and welded to the front side surface and bottom surface of the lower end of the support frame; by providing an "L"-shaped folded edge folded inward at the edge of the support step, the folded edge can not only further support the support frame, but also after the folded edge is welded to the front side surface and bottom surface of the lower end of the support frame, the welding firmness of the support frame and the connecting frame can be further improved, that is, the fixing firmness of the support frame and the rotating frame can be further improved.

[0007] In a possible embodiment, a bend folded toward the rear is provided at the inner edge of the upper end of each connecting frame, and each bend abuts against the inner side wall of the support frame and is welded and fixed; by providing a bend folded toward the rear at the inner edge of the upper end of each connecting frame, and each bend abuts against the inner side wall of the support frame and is welded and fixed, the fixing firmness and reliability of the support frame and the connecting frame can be further improved, that is, the fixing firmness of the support frame and the rotating frame can be further improved.

[0008] In one possible embodiment, a rolled edge with a "U"-shaped cross section is provided at the edge of the back panel, and the opening of the rolled edge is facing the rear side of the backrest frame; by providing a rolled edge with a "U"-shaped cross section at the edge of the back panel, the structural strength at the edge of the back panel can be further improved to improve the deformation resistance at the edge of the back panel.

[0009] In a possible embodiment, a plurality of reinforcing ribs are extruded and distributed at intervals on each curl; by extruding a plurality of reinforcing ribs distributed at intervals on each curl, the structural strength and deformation resistance of the curl can be further improved, thereby further improving the deformation resistance at the edge of the back panel.

[0010] In a possible embodiment, a plurality of connecting strips spaced from left to right are welded and fixed to the lower end of the support frame, and the lower edge of each connecting strip is welded and fixed to the front side of the lower end of the back plate; by adopting this structure, with the action of a plurality of connecting strips, the fixing firmness and reliability of the lower end of the back plate and the lower end of the support frame can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a first three-dimensional structural schematic diagram of the utility model;

[0012] Figure 2 for Figure 1 The schematic diagram of the structure after the enlargement of A in the middle;

[0013] Figure 3 This is a second three-dimensional structural schematic diagram of the utility model;

[0014] Figure 4 It is a schematic diagram of the three-dimensional structure of the connecting frame. DETAILED DESCRIPTION

[0015] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0016] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0017] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0018] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] See also Figure 1-4 As shown, the embodiment of the present application discloses a backrest frame of a car seat, including a back plate 1 and a ring-shaped support frame 2, the back plate 1 is welded and fixed to the rear side of the support frame 2, and the left and right sides of the lower end of the support frame 2 are respectively welded and fixed to the rotating frame 31 on one of the angle adjusters 3; the backrest frame also includes two connecting frames 4; the two connecting frames 4 are respectively welded and fixed to the inner side of one of the rotating frames 31, and a supporting step 41 is provided on the rear side of each connecting frame 4, and the supporting step 41 is abutted against and welded to the front side and bottom surface of the lower end of the support frame 2.

[0020] An "L"-shaped folded edge 42 folded inward is provided at the edge of the support step 41, and the folded edge 42 is abutted against the front side surface and bottom surface of the lower end of the support frame 2 and welded and fixed; by providing an "L"-shaped folded edge folded inward at the edge of the support step, the folded edge can not only further support the support frame, but also after the folded edge is welded and fixed to the front side surface and bottom surface of the lower end of the support frame, the welding firmness of the support frame and the connecting frame can be further improved, that is, the fixing firmness of the support frame and the rotating frame can be further improved.

[0021] A bend 43 folded toward the rear is provided at the inner edge of the upper end of each connecting frame 4, and each bend 43 abuts against the inner wall of the support frame 2 and is welded and fixed; by providing a bend folded toward the rear at the inner edge of the upper end of each connecting frame, and each bend abuts against the inner wall of the support frame and is welded and fixed, the fixing firmness and reliability of the support frame and the connecting frame can be further improved, that is, the fixing firmness of the support frame and the rotating frame can be further improved.

[0022] A rolled edge 11 with a "U"-shaped cross section is provided at the edge of the back panel 1, and the opening of the rolled edge 11 faces the rear side of the backrest frame; by providing a rolled edge with a "U"-shaped cross section at the edge of the back panel, the structural strength at the edge of the back panel can be further improved to improve the deformation resistance at the edge of the back panel.

[0023] A plurality of reinforcing ribs 12 are extruded and distributed at intervals on each curl 11; by extruding a plurality of reinforcing ribs 12 distributed at intervals on each curl, the structural strength and deformation resistance of the curl can be further improved, thereby further improving the deformation resistance at the edge of the back panel.

[0024] A plurality of connecting strips 5 spaced from left to right are welded and fixed to the lower end of the support frame 2, and the lower edge of each connecting strip 5 is welded and fixed to the front side of the lower end of the back panel 1. By adopting this structure, with the action of a plurality of connecting strips, the fixing firmness and reliability of the lower end of the back panel and the lower end of the support frame can be further improved.

[0025] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A backrest frame of a car seat, comprising a back plate (1) and a ring-shaped support frame (2), wherein the back plate (1) is welded and fixed to the rear side of the support frame (2), and the left and right sides of the lower end of the support frame (2) are respectively welded and fixed to a rotating frame (31) on one of the angle adjusters (3); characterized in that: The backrest frame further comprises two connecting frames (4); the two connecting frames (4) are respectively welded and fixed to the inner side of one of the rotating frames (31); a supporting step (41) is provided on the rear side of each connecting frame (4); the supporting step (41) abuts against and is welded to the front side surface and the bottom surface of the lower end of the supporting frame (2).

2. The backrest frame of the automobile seat according to claim 1, characterized in that: An "L"-shaped folded edge (42) folded inward is provided at the edge of the support step (41); the folded edge (42) abuts against the front side surface and the bottom surface of the lower end of the support frame (2) and is fixed by welding.

3. The backrest frame of the automobile seat according to claim 1 or 2, characterized in that: A bend (43) folded back toward the rear is provided at the inner edge of the upper end of each connecting frame (4), and each bend (43) abuts against the inner side wall of the supporting frame (2) and is fixed by welding.

4. The backrest frame of the automobile seat according to claim 1 or 2, characterized in that: A rolled edge (11) having a U-shaped cross section is provided at the edge of the back plate (1), and the opening of the rolled edge (11) faces the rear side of the backrest frame.

5. The backrest frame of the automobile seat according to claim 4, characterized in that: A plurality of reinforcing ribs (12) distributed at intervals are extruded and formed on each of the curled edges (11).

6. The backrest frame of the automobile seat according to claim 1 or 2, characterized in that: A plurality of connection strips (5) spaced from left to right are welded and fixed to the lower end of the support frame (2), and the lower edge of each connection strip (5) is welded and fixed to the front side of the lower end of the back plate (1).

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