Interchangeable disassembly structure for backrest and footrest

Abstract

The present invention discloses an interchangeable disassembly and assembly structure for a backrest footrest, comprising a backrest and a footrest plate, the key of which is that a swing arm is rotatably mounted inside the backrest, a through hole is provided on the rear side of the backrest, the swing arm has a first connecting section that can be rotated out of the through hole, and a second connecting section is provided on the footrest plate, and the second connecting section is assembled and connected to the first connecting section in a detachable manner. The beneficial effects of the present invention are that the footrest plate can be disassembled and assembled outside the backrest, can be replaced at any time, has good interchangeability, can be conveniently repaired and parts can be replaced at any time, and can meet the personalized selection needs of users.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile footrests, and in particular relates to an interchangeable disassembly and assembly structure for a backrest footrest. Background Art

[0002] With the development of automobile technology and the improvement of quality of life, consumers have higher and higher requirements for the comfort of cars. At present, in order to enrich the riding experience of passengers in the middle and rear seats, some mid-to-high-end cars provide footrests for passengers in the middle and rear seats to support the passengers' feet. The footrests are usually set on the back side of the front seat backrests and can be flipped down and unfolded when needed.

[0003] In the prior art, some footrests are deployed and used in an electrically driven manner. A rotating mechanism is connected between the footrest plate and the drive module of such footrests. Since the drive module and the rotating mechanism are both fixedly arranged inside the backrest, when faced with the personalized selection needs of consumers, such as choosing different styles of face covers according to their own preferences or choosing footrest plates with different shapes, the entire backrest frame needs to be disassembled in order to replace the external footrest plate, which is costly and difficult to be widely accepted by the market. Summary of the invention

[0004] In view of this, the present invention provides an interchangeable disassembly and assembly structure for a backrest footrest, which can realize the disassembly and assembly of the footrest plate outside the backrest, and has good interchangeability.

[0005] To achieve the above purpose, the technical solution of the present invention is as follows:

[0006] An interchangeable disassembly and assembly structure for a backrest and a footrest comprises a backrest and a footrest plate, the key of which is that a swing arm is rotatably mounted inside the backrest, a through hole is provided on the rear side of the backrest, the swing arm has a first connecting section that can be rotated out from the through hole, and a second connecting section is provided on the footrest plate, and the second connecting section is assembled and connected to the first connecting section in a detachable manner.

[0007] By adopting the above structure, the footrest can be directly replaced externally without disassembling the whole frame of the backrest, and the interchangeability is good. The user can replace the face cover with different styles or the footrest with different shapes at any time according to personal preference.

[0008] Preferably, the first connecting section and the second connecting section are both in an arc-shaped sheet structure, and a pre-positioning structure is provided between the two, so that the footrest can be hung on the first connecting section. With the above structure, when the footrest is installed, the first connecting section and the second connecting section are not fastened, and the footrest can be pre-hung on the back of the backrest, making the subsequent fixing operation more convenient.

[0009] Preferably, the pre-positioning structure includes a positioning protrusion and a support platform arranged on the inner side of the first connecting section, the positioning protrusion and the support platform are respectively located at the upper and lower ends of the first connecting section, and the upper end of the second connecting section is provided with a positioning groove adapted to the positioning protrusion. With the above structure, the lower end of the second connecting section is supported on the support platform, and the positioning groove is hung on the positioning protrusion, so that the pre-positioning installation can be achieved.

[0010] Preferably, the first connecting section and the second connecting section are provided with connecting holes facing each other. The above structure is adopted to facilitate the first connecting section and the second connecting section to be locked together by screw connection.

[0011] Preferably, the support platform is an arc-shaped structure, and its curvature is adapted to the lower end of the second connecting section. The above structure can ensure the reliability of pre-positioning installation.

[0012] Preferably, a frame bar is fixedly provided in the foot support plate, and the second connecting section is formed by extending outward from the end of the frame bar.

[0013] As a preferred embodiment, a decorative cover is installed at the position of the backrest corresponding to the through hole. The first connecting section and the second connecting section are buckled with decorative components on the outside. The above structure can ensure the appearance quality of the seat.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The footrest can be disassembled and assembled on the outside of the backrest and can be replaced at any time with good interchangeability. It is not only convenient for maintenance and replacement of parts at any time, but also can meet the user's personalized selection needs.

[0016] 2. The use of double arc-shaped pieces and pre-positioned installation connection method can ensure the feasibility of disassembly and assembly, and has the technical advantages of convenient operation and low replacement cost.

[0017] 3. In different seat product applications, the actuator connected to the backrest frame does not change, only the soft decoration of the footrest changes, which can ensure that the structural strength of the frame core is not affected and the safety performance of the seat product can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the backrest footrest (in the unfolded state);

[0019] Figure 2 A schematic diagram of the backrest structure reflecting the interchangeable disassembly and assembly structure;

[0020] Figure 3 for Figure 2 A partial enlarged view of point Ⅰ in the middle;

[0021] Figure 4A partial exploded schematic diagram reflecting the specific structure of the first connecting section and the second connecting section;

[0022] Figure 5 It is a schematic diagram of the structure of the backrest footrest (folded state). DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with embodiments and drawings.

[0024] like Figures 2 to 4 As shown, an interchangeable disassembly and assembly structure for convenient replacement of the footrest B, a swing arm 1 is rotatably mounted on the inner frame of the backrest A, a through hole a is provided on the rear backboard 3 of the backrest A, the outer end of the swing arm 1 has a first connecting section 1a, the first connecting section 1a can be screwed out from the through hole a, a skeleton bar 2 is provided inside the footrest B, the end of the skeleton bar 2 has a second connecting section 2a extending outwardly, the second connecting section 2a is located outside the footrest B, and the second connecting section 2a is assembled and connected to the first connecting section 1a in a detachable manner, such as riveting, screw connection, plug-in, etc.

[0025] The first connecting section 1a and the second connecting section 2a are both arc-shaped sheet structures, and the first connecting section 1a and the second connecting section 2a are provided with connecting holes b that are opposite to each other. In the present embodiment, there are two groups of the first connecting section 1a and the second connecting section 2a, and the two groups of the first connecting section 1a and the second connecting section 2a are respectively located at the two ends between the footrest B and the backrest A, and the first connecting section 1a and the second connecting section 2a are both locked and connected by screws e.

[0026] like Figure 1 As shown, in order to ensure the appearance quality of the seat, a decorative cover c is fastened to the position of the backrest A corresponding to the through hole a, and a decorative component d is fastened to the outside of the first connecting section 1a and the second connecting section 2a.

[0027] like Figure 5 As shown, when the footrest B is in the folded state, the first connecting section 1a and the second connecting section 2a are both located inside the backrest A.

[0028] For example Figure 1 , 3 As shown, after the footrest B is flipped and unfolded, the first connecting section 1a and the second connecting section 2a are rotated out from the through hole a of the backrest A. The decorative component d can be removed to expose the first connecting section 1a and the second connecting section 2a, and then the footrest B can be removed by removing the screws e.

[0029] In order to facilitate the installation of the footrest B, a pre-positioning structure is provided between each group of the first connecting section 1a and the second connecting section 2a. The pre-positioning structure includes a positioning protrusion 1b and a support platform 1c arranged on the inner side of the first connecting section 1a, and a positioning groove 2b arranged on the upper end of the second connecting section 2a, wherein the positioning protrusion 1b and the support platform 1c are respectively located at the upper and lower ends of the first connecting section 1a, and the positioning groove 2b is adapted to the positioning protrusion 1b. During assembly, the lower end of the second connecting section 2a is supported on the support platform 1c, and the positioning groove 2b is hung on the positioning protrusion 1b, and the pre-positioning installation can be achieved. At this time, even if the first connecting section 1a and the second connecting section 2a are not screwed, the footrest B can still be hung on the rear side of the backrest A, making the subsequent fixing operation more convenient. Furthermore, in order to ensure the stability of the pre-positioning installation, the support platform 1c is an arc-shaped structure, and its curvature is adapted to the lower end of the second connecting section 2a.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention, and such changes all fall within the scope of protection of the present invention.

Claims

1. An interchangeable disassembly and assembly structure for a backrest and footrest, comprising a backrest (A) and a footrest plate (B), characterized in that: A swing arm (1) is rotatably mounted in the backrest (A), a through hole (a) is provided on the rear side of the backrest (A), the swing arm (1) has a first connecting section (1a) that can be rotated out of the through hole (a), and a second connecting section (2a) is provided on the footrest (B), and the second connecting section (2a) is detachably assembled and connected to the first connecting section (1a); The first connecting section (1a) and the second connecting section (2a) are both in an arc-shaped sheet-like structure, and a pre-positioning structure is provided between the two, the pre-positioning structure comprising a positioning protrusion (1b) and a support platform (1c) arranged on the inner side of the first connecting section (1a), the positioning protrusion (1b) and the support platform (1c) are respectively located at the upper and lower ends of the first connecting section (1a), and the upper end of the second connecting section (2a) is provided with a positioning groove (2b) adapted to the positioning protrusion (1b); The first connecting section (1a) and the second connecting section (2a) are each provided in two groups, and the two groups of the first connecting section (1a) and the second connecting section (2a) are respectively located at two ends between the footrest (B) and the backrest (A).

2. The interchangeable disassembly structure for the backrest footrest according to claim 1, characterized in that: The first connecting section (1a) and the second connecting section (2a) are provided with connecting holes (b) facing each other.

3. The interchangeable disassembly and assembly structure for a backrest footrest according to claim 1, characterized in that: The support platform (1c) is an arc-shaped structure, and its curvature is adapted to the lower end of the second connecting section (2a).

4. The interchangeable disassembly and assembly structure for a backrest footrest according to claim 1, characterized in that: A frame bar (2) is fixedly provided inside the foot support plate (B), and the second connecting section (2a) is formed by extending outwards from the end of the frame bar (2).

5. The interchangeable disassembly and assembly structure for a backrest footrest according to claim 1, characterized in that: A decorative cover (c) is installed at a position of the backrest (A) corresponding to the through hole (a).

6. The interchangeable disassembly structure for a backrest footrest according to claim 1, characterized in that: The first connecting section (1a) and the second connecting section (2a) are buckled with decorative parts (d) on their exteriors.

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