Zero-gravity framework mechanism quick-change structure and seat

Abstract

The utility model discloses a zero-gravity framework mechanism quick change structure and a seat, and belongs to the technical field of automobile seats, the zero-gravity framework mechanism quick change structure comprises two seat cushion side plates, a first rod, a second rod, a third rod, a fourth rod, a first support, a second support and an angle adjusting core piece assembly, the two seat cushion side plates are arranged in parallel, and the seat cushion side plates are connected through the first rod and the second rod; the first rod is hinged to the third rod, the second rod is hinged to the fourth rod, the third rod is hinged to the first support, the fourth rod is hinged to the angle adjusting core piece assembly, the angle adjusting core piece assembly is hinged to the second support, and the angle adjusting core piece assembly comprises a connecting movable piece, a connecting static piece, an angle adjusting drive and an angle adjusting core piece. The other end of the connecting movable piece is fixedly connected with the angle adjusting core piece, the angle adjusting core piece is hinged to the connecting static piece, the angle adjusting drive output end is connected with the angle adjusting core piece in a matched mode, and the connecting static piece is fixed to the second support. The angle-adjusting core piece, the angle-adjusting connecting movable piece and the angle-adjusting connecting static piece are welded in a laser welding mode, welding heat is low, welding deformation is small, welding is stable, the size is stable, and stable performance can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile seats, in particular to a zero-gravity skeleton mechanism quick-change structure and a seat. Background Art

[0002] Patent No. CN202110643449.X discloses a utility model patent for "an automatically adjustable zero-gravity seat structure and automobile". The utility model is driven by a double-sided electric lead screw to achieve inclination adjustment, which is costly and not conducive to mass production; it uses dual motors to drive unified actions, and synchronization is difficult to ensure, resulting in seat torsional shaking or even jamming; the lead screw bears radial loads, and the stiffness and strength cannot be guaranteed; as the lead screw is adjusted, the load span is constantly changing, and the structural stability is poor; the adjustment noise is loud.

[0003] Patent No. CN201910782504.6 discloses a utility model patent for a "zero gravity seat and a car containing the same". The backrest and seat cushion of this utility model are adjusted synchronously, and it can only be used as a single-function dedicated seat structure, and its usage is limited. In order to reduce the surface step difference between the seat cushion and the backrest during the adjustment process, the rotation center of the backrest is very close to the center of the rear upper connecting rod of the seat cushion, which makes it easy for the backrest and the seat cushion to interfere with each other during rotation, which greatly restricts the shape.

[0004] Patent No. CN202111340091.X discloses a utility model patent for "a zero-gravity seat frame with lateral avoidance". The lateral avoidance function of this utility model only provides lateral sliding, and requires the user to identify the adjustment space by himself, which is not convenient enough; its inclination adjustment adopts a double adjuster, but the structure of the rotation adjustment mechanism is complex, the adjuster is arc welded, the thermal deformation is obvious, and the volume of the connecting parts will also increase. Utility Model Content

[0005] In view of the above problems, the utility model provides a zero-gravity skeleton mechanism quick-change structure and a seat, including a seat cushion side panel, a first rod, a second rod, a third rod, a fourth rod, a first bracket, a second bracket and an angle adjustment core component assembly. There are two seat cushion side panels, which are arranged in parallel. The seat cushion side panels are connected by the first rod and the second rod. The first rod is hinged to the third rod, the second rod is hinged to the fourth rod, the third rod is hinged to the first bracket, the fourth rod is hinged to the angle adjustment core component assembly, and the angle adjustment core component assembly is hinged to the second bracket. The angle adjustment core component assembly includes: a connecting moving part, a connecting static part, an angle adjustment drive and an angle adjustment core component. One end of the connecting moving part is hinged to the fourth rod, and the other end of the connecting moving part is fixedly connected to the angle adjustment core component. The angle adjustment core component is hinged with the connecting static component, the angle adjustment drive output end is connected with the angle adjustment core component, and the connecting static component is fixed on the second bracket; the angle adjustment core component and the angle adjustment connecting dynamic component and the angle adjustment connecting static component are welded by laser welding, with low welding heat, small welding deformation, stable welding, stable size, and stable performance; the slide rail and the slide rail front bracket and the slide rail rear bracket are welded by laser welding, with low welding heat, small welding deformation, stable welding, stable size, and stable performance; the angle adjustment core component assembly and the slide rail front bracket are assembled by screw connection, and the strength parts of the quick-change mechanism can be switched at any time according to customer production requirements, without the need to open new tooling, the process is simple, easy to implement, and can ensure the batch production rhythm.

[0006] The technical scheme of the utility model is as follows: a zero-gravity skeleton mechanism quick-change structure, comprising: a seat cushion side panel, a first rod, a second rod, a third rod, a fourth rod, a first bracket, a second bracket and an angle adjustment core component assembly. There are two seat cushion side panels, which are arranged in parallel. The seat cushion side panels are connected by the first rod and the second rod. The first rod is hinged to the third rod, the second rod is hinged to the fourth rod, the third rod is hinged to the first bracket, the fourth rod is hinged to the angle adjustment core component assembly, the angle adjustment core component assembly is hinged to the second bracket, and the angle adjustment core component assembly comprises: a connecting moving part, a connecting static part, an angle adjustment drive and an angle adjustment core component. One end of the connecting moving part is hinged to the fourth rod, and the other end of the connecting moving part is fixedly connected to the angle adjustment core component. The angle adjustment core component is hinged to the connecting static part. The angle adjustment drive output end is cooperatively connected to the angle adjustment core component, and the connecting static part is fixed on the second bracket.

[0007] Furthermore, the angle adjustment core component includes a small gear and a large gear, the small gear is connected to the connecting moving part, and the large gear is connected to the connecting static part.

[0008] Furthermore, the center distance between the small gear and the large gear is 1.35 mm.

[0009] Furthermore, the large gear has 37 teeth and the small gear has 36 teeth.

[0010] Furthermore, it also includes a slide rail, and the first bracket and the second bracket are slidably connected to the slide rail.

[0011] Furthermore, the first rod is hinged to the seat cushion side plate, and the second rod is hinged to the seat cushion side plate.

[0012] A zero-gravity skeleton mechanism quick-change seat comprises: a backrest, a seat pot, a leg support bracket and a zero-gravity skeleton mechanism quick-change structure, wherein one end of the backrest is hinged to one end of a seat cushion side plate, the other end of the seat cushion side plate is hinged to one end of the seat pot, and the other end of the seat pot is hinged to the leg support bracket.

[0013] The beneficial effects of the utility model are:

[0014] The angle adjustment core components and the angle adjustment connecting dynamic parts and the angle adjustment connecting static parts are welded by laser welding, which has low welding heat, small welding deformation, stable welding, stable size, and can ensure stable performance; the slide rails and the slide rail front brackets and the slide rail rear brackets are welded by laser welding, which has low welding heat, small welding deformation, stable welding, stable size, and can ensure stable performance; the angle adjustment core component assembly and the slide rail front bracket are assembled by screw connection, and the strength parts of the quick-change mechanism can be switched at any time according to customer production requirements. There is no need to open new tooling, the process is simple, easy to implement, and can ensure the batch production rhythm. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the lower part of the seat of the utility model.

[0016] Figure 2 It is a side view of the seat of the utility model.

[0017] Figure 3 This is a schematic diagram of the angle adjustment core component of the utility model.

[0018] Figure 4 This is a schematic diagram of the closed angle adjustment core component of the utility model.

[0019] Figure 5 This is a schematic diagram of the opening of the angle adjustment core component of the utility model.

[0020] Figure 6 This is the principle diagram of the utility model.

[0021] Figure 7 It is a prior art seat.

[0022] Figure 8 The utility model relates to a seat support member of the prior art.

[0023] In the figure:

[0024] 1 seat cushion side panel, 2 seat basin, 3 leg support bracket, 4 first bracket, 5 second bracket, 6 slide rail, 7 angle adjustment core component assembly, 8 backrest, 101 first rod, 102 second rod, 103 third rod, 104 fourth rod, 701 connecting moving part, 702 connecting static part, 703 angle adjustment drive, 704 angle adjustment core component, A small gear, B center distance, C large gear. DETAILED DESCRIPTION

[0025] It should be noted that in the description of the present invention, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "clockwise", "counterclockwise", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connection", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral connection; the connection can be a mechanical connection or an electrical connection; the connection can be a direct connection or an indirect connection through an intermediate medium, and can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] A zero-gravity skeleton mechanism quick-change structure comprises: a seat cushion side plate 1, a first rod 101, a second rod 102, a third rod 103, a fourth rod 104, a first bracket 4, a second bracket 5, a slide rail 6 and an angle adjustment core component assembly 7.

[0028] There are two seat cushion side panels 1, which are arranged in parallel and connected by a first rod 101 and a second rod 102.

[0029] The first rod 101 is hinged to the seat cushion side plate 1 , and the second rod 102 is hinged to the seat cushion side plate 1 .

[0030] The first rod 101 is hinged to the third rod 103 , and the second rod 102 is hinged to the fourth rod 104 .

[0031] The third rod 103 is hinged to the first bracket 4 , and the fourth rod 104 is hinged to the angle adjustment core component assembly 7 .

[0032] The angle adjustment core component assembly 7 is hinged to the second bracket 5 .

[0033] The first bracket 4 and the second bracket 5 are both slidably connected to the slide rail 6 .

[0034] The angle adjustment core component assembly 7 includes: a connecting moving component 701 , a connecting static component 702 , an angle adjustment drive 703 and an angle adjustment core component 704 .

[0035] One end of the connecting movable member 701 is hinged to the fourth rod 104, and the other end of the connecting movable member 701 is fixedly connected to the angle adjustment core member 704. The angle adjustment core member 704 is hinged to the connecting static member 702. The output end of the angle adjustment drive 703 is cooperatively connected to the angle adjustment core member 704, and the connecting static member 702 is fixed on the second bracket 5.

[0036] The angle adjustment core component 704 adopts a one-tooth difference gear structure, which has a simple structure, large torque, high strength, and can ensure the safety of passengers.

[0037] A zero-gravity skeleton mechanism quick-change seat, comprising: a backrest 8, a seat pan 2, a leg support bracket 3 and a zero-gravity skeleton mechanism quick-change structure, wherein one end of the backrest 8 is hinged to one end of a seat cushion side panel 1, the other end of the seat cushion side panel 1 is hinged to one end of the seat pan 2, and the other end of the seat pan 2 is hinged to the leg support bracket 3.

[0038] The angle adjustment core component 704 includes a small gear A and a large gear C. The small gear A is connected to the connecting moving part 701, and the large gear C is connected to the connecting static part 702. The center distance B between the small gear A and the large gear C is 1.35 mm. The large gear C has 37 teeth and the small gear A has 36 teeth. They rotate in coordination with each other, that is, a one-tooth difference gear structure.

[0039] The degree of freedom P = 3n - 2Pl - Ph, where n is the component, PI is the low pair, and Ph is the high pair. In the present invention, there are four components, five low pairs, and one high pair, so P = 3*4-2*5-1 = 1, that is, the degree of freedom is 1, indicating that the present invention can move with only one power.

[0040] The angle adjustment core component 704 and the connecting moving component 701 and the connecting static component 702 are all welded by laser welding; the slide rail 6 and the first bracket 4 and the second bracket 5 are all welded by laser welding; the welding heat is low, the welding deformation is small, the welding is stable, the size is stable, and stable performance can be guaranteed.

[0041] The angle adjustment core component assembly 7 and the fourth rod 104 are assembled by riveting, and the angle adjustment core component assembly 7 and the second bracket 5 are assembled by screwing. The process is simple and easy to implement, and the batch production rhythm can be guaranteed.

[0042] The rear end of the angle adjustment drive 703 is placed inside the frame to ensure space under the seat basin and to ensure space for ECU installation.

[0043] The angle adjustment core assembly 7 of the utility model can quickly adjust Figure 8 The existing seat support structure is replaced.

[0044] The design has a simple structure, a small number of parts, a low weight, a large angle adjustment and strong comfort performance, and can enable passengers to achieve the most comfortable reclining posture and reach the human body's weightless comfort zone.

[0045] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any modification, equivalent replacement and improvement made by any technician familiar with the technical field within the technical scope disclosed by the utility model and within the spirit and principle of the utility model shall be covered by the protection scope of the utility model. At the same time, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such 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 including 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.

Claims

1. A zero-gravity skeleton mechanism quick-change structure, characterized in that: include: A seat cushion side panel, a first rod, a second rod, a third rod, a fourth rod, a first bracket, a second bracket and an angle adjustment core component assembly. There are two seat cushion side panels, which are arranged in parallel. The seat cushion side panels are connected by the first rod and the second rod. The first rod is hinged to the third rod, the second rod is hinged to the fourth rod, the third rod is hinged to the first bracket, the fourth rod is hinged to the angle adjustment core component assembly, the angle adjustment core component assembly is hinged to the second bracket, and the angle adjustment core component assembly includes: a connecting moving part, a connecting static part, an angle adjustment drive and an angle adjustment core component. One end of the connecting moving part is hinged to the fourth rod, and the other end of the connecting moving part is fixedly connected to the angle adjustment core component. The angle adjustment core component is hinged to the connecting static part. The output end of the angle adjustment drive is cooperatively connected to the angle adjustment core component, and the connecting static part is fixed on the second bracket.

2. A zero-gravity skeleton mechanism quick-change structure according to claim 1, characterized in that: The angle adjustment core component includes a small gear and a large gear, the small gear is connected to the connecting moving part, and the large gear is connected to the connecting static part.

3. A zero-gravity skeleton mechanism quick-change structure according to claim 2, characterized in that: The center distance between the small gear and the large gear is 1.35mm.

4. A zero-gravity skeleton mechanism quick-change structure according to claim 2 or 3, characterized in that: The large gear has 37 teeth and the small gear has 36 teeth.

5. A zero-gravity skeleton mechanism quick-change structure according to claim 4, characterized in that: It also includes a slide rail, and the first bracket and the second bracket are slidably connected to the slide rail.

6. The zero-gravity skeleton mechanism quick-change structure according to claim 5, characterized in that: The first rod is hinged to the seat cushion side plate, and the second rod is hinged to the seat cushion side plate.

7. A zero-gravity frame mechanism quick-change seat, comprising a backrest, a seat pan and a leg support, characterized in that: It also includes the zero-gravity skeleton mechanism quick-change structure as described in any one of claims 1 to 6, one end of the backrest is hinged to one end of the seat cushion side panel, the other end of the seat cushion side panel is hinged to one end of the seat basin, and the other end of the seat basin is hinged to the leg support bracket.

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