Light and thin waist rest structure of integrated backrest

Abstract

The utility model provides a light and thin waist rest structure of an integrated backrest, the waist rest structure comprises a waist rest plate and a fixing piece, the waist rest plate forms an arc-shaped supporting surface, two ends of the waist rest plate form connecting clamps, the waist rest plate is connected on a backrest frame through the connecting clamps, the backrest frame is provided with two supporting rods which are arranged vertically, and the fixing piece is arranged on the back frame. A mounting groove is formed in the supporting rod, the connecting clamp is inserted into the mounting groove, and the fixing piece is connected to the upper portion of the mounting groove in a matched mode and arranged on the connecting clamp in a covering mode. The waist backup plate is of a light and thin integrated plate type structure, the arc-shaped supporting face of the waist backup plate is used for supporting the curved surface of the waist, the supporting fitting degree is good, the waist backup plate is connected with the backrest frame through the connecting clamp, the mounting groove is formed in the backrest frame and used for being matched with connection of the waist backup plate, and the fixing piece is directly fixed to the mounting groove and forms a restraining structure for the connecting clamp. And separation from the mounting groove is avoided.

Description

Technical Field

[0001] The utility model relates to an improvement of the lumbar support structure of a seat, in particular to a thin and light lumbar support structure with an integrated backrest. Background Technique

[0002] The lumbar support of a seat is connected to the backrest structure and is used to support the human waist. The lumbar support has an arc-shaped support surface for supporting the body surface. In the seat structure with an integrated backrest, the backrest forms an integrated frame structure, and its upper end to the lower end cover the support surface of the human torso. At the same time, a mesh material is tightly arranged on the backrest frame. Therefore, the matching lumbar support is required to be stably fixed on the backrest frame and avoid exceeding the thickness range of the backrest frame. Therefore, it is necessary to design the structure of the lumbar support to achieve its reliable connection. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the above deficiencies existing in the prior art, and to provide a thin and light lumbar support structure with an integrated backrest.

[0004] The technical solution adopted by the utility model to solve the above problems is: the lumbar support structure includes a lumbar support plate and a fixing member. The lumbar support plate forms an arc-shaped support surface, and both ends of the lumbar support plate form connection cards. The lumbar support plate is connected to the backrest frame through the connection cards. The backrest frame has two vertically arranged support rods, and there are installation grooves on the support rods. The connection cards are inserted into the installation grooves, and the fixing member is cooperatively connected above the installation grooves and covers the connection cards. The lumbar support plate is a thin and light integrated plate structure, and its arc-shaped support surface is used to support the lumbar curve, and the support fit is good. The lumbar support plate is connected to the backrest frame through the connection cards. Installation grooves are formed on the backrest frame to cooperate with the connection of the lumbar support plate, and the fixing member is directly fixed on the installation grooves and forms a restraint structure for the connection cards to prevent them from detaching from the installation grooves.

[0005] Further, the lumbar support plate is integrally formed by a plastic material. Its arc-shaped support surface is an elastic surface, and its connection cards are rigid structures. The connection cards are arranged at an angle relative to the arc-shaped support surface, and the connection cards extend a clamping length and are inserted into the installation grooves. The elastic surface has a good support effect and has a certain degree of deformation ability, and the use comfort is good. The connection cards are rigid structures, which can avoid structural loosening.

[0006] Further, the edge of the installation groove forms a thickened flat edge. The thickened flat edge forms a flat structure parallel to the contact surface of the connection card. The thickened flat edge is formed by thickening the inner edge of the backrest frame. The thickened straight edge forms a reliable connection foundation. When the lumbar support plate is pressed, its elastic effect can be effectively realized. The thickened and flat structures are integrally formed with the backrest frame, which is convenient for processing and has good strength.

[0007] Further, a spring groove is provided at the bottom of the installation groove. A spring is elastically installed in the spring groove and is arranged in a pressing manner with the connection card. The spring can realize the small-angle swing of the lumbar support plate, can better fit the body, and effectively improve the comfort of support.

[0008] Further, the fixing member includes an arc-shaped pressing strip, a socket column, and a screw hole. Socket columns are provided at both ends of the arc-shaped pressing strip, and screw holes are provided on the socket columns. Installation columns are provided at positions corresponding to the socket columns in the installation groove. The socket columns are coaxially sleeved on the installation columns and are fixed by installation screws. The arc-shaped pressing strip covers and is arranged above the connection card. The fixing member forms an arc-shaped structure that fits the structure of the lumbar support plate. It is fixed and installed by screws at both ends, forming an effective spatial constraint on the lumbar support plate. The fixing members are symmetrically arranged on both sides of the backrest frame.

[0009] Compared with the prior art, the present utility model has the following advantages and effects: This design is an improvement of the lumbar support structure. The overall lumbar support structure is a thin, lightweight structure and is accommodated in the spatial structure of the backrest frame, achieving the unity of the overall appearance, having good comfort in use, reliable quality, and low difficulty in production and manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic structural diagram of the lumbar support on the backrest frame.

[0011] Figure 2 It is a partially enlarged schematic structural diagram of the installation groove.

[0012] Figure 3 It is a schematic structural diagram of the lumbar support plate.

[0013] Figure 4 It is a schematic structural diagram of the fixing member.

[0014] In the figure: 1. Lumbar support plate, 2. Fixing member, 3. Arc-shaped support surface, 4. Connection card, 5. Backrest frame, 6. Installation groove, 7. Thickened straight edge, 8. Spring groove, 9. Arc-shaped pressing strip, 10. Socket column, 11. Screw hole, 12. Installation column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The present utility model will be further described in detail below with reference to the drawings and through embodiments. The following embodiments are explanations of the present utility model, and the present utility model is not limited to the following embodiments.

[0016] A thin and light lumbar support structure with an integrated backrest. The lumbar support structure includes a lumbar support plate 1 and a fixing member 2. The lumbar support plate 1 forms an arc-shaped support surface 3. Both ends of the lumbar support plate 1 form connecting cards 4. The lumbar support plate 1 is connected to the backrest frame 5 through the connecting cards 4. The backrest frame 5 has two vertically arranged support rods, and there is an installation groove 6 on the support rods. The connecting card 4 is inserted into the installation groove 6, and the fixing member 2 is cooperatively connected above the installation groove 6 and covers the connecting card 4.

[0017] The lumbar support plate 1 is integrally formed of a plastic material. Its arc-shaped support surface 3 is an elastic surface, and its connecting card 4 is a rigid structure. The connecting card 4 is arranged at an angle with respect to the arc-shaped support surface 3. The connecting card 4 extends out a clamping length and is inserted into the installation groove 6.

[0018] The edge of the installation groove 6 forms a thickened straight edge 7. The thickened straight edge 7 forms a straight structure parallel to the contact surface of the connecting card 4. The thickened straight edge 7 is formed by thickening the inner edge of the backrest frame 5.

[0019] A spring groove 8 is provided at the bottom of the installation groove 6. A spring is elastically installed in the spring groove 8, and the spring is arranged to press against the connecting card 4.

[0020] The fixing member 2 includes an arc-shaped pressing strip 9, a socket column 10, and a screw hole 11. Socket columns 10 are provided at both ends of the arc-shaped pressing strip 9. Screw holes 11 are provided on the socket columns 10. Installation columns 12 are provided at positions corresponding to the socket columns 10 in the installation groove 6. The socket columns 10 are coaxially sleeved on the installation columns 12 and fixed by installation screws. The arc-shaped pressing strip 9 covers the connecting card 4 above.

[0021] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary rather than restrictive. The scope of the present invention is defined by the claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0022] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A thin and light lumbar support structure with an integrated backrest, characterized in that: The lumbar support structure includes a lumbar support plate (1) and a fixing member (2). The lumbar support plate (1) forms an arc-shaped support surface (3). Both ends of the lumbar support plate (1) form connecting cards (4). The lumbar support plate (1) is connected to the backrest frame (5) through the connecting cards (4). The backrest frame (5) has two vertically arranged support rods, and there are mounting grooves (6) on the support rods. The connecting cards (4) are inserted into the mounting grooves (6). The fixing member (2) is cooperatively connected above the mounting grooves (6) and covers the connecting cards (4). The lumbar support plate (1) is integrally formed of a plastic material. Its arc-shaped support surface (3) is an elastic surface, and its connecting cards (4) are of a rigid structure. The connecting cards (4) are arranged at an angle relative to the arc-shaped support surface (3). The connecting cards (4) extend out a clamping length and are inserted into the mounting grooves (6). The edge of the mounting groove (6) forms a thickened straight edge (7). The thickened straight edge (7) forms a straight structure parallel to the contact surface of the connecting card (4). The thickened straight edge (7) is formed by thickening the inner edge of the backrest frame (5). The fixing member (2) includes an arc-shaped pressing strip (9), a socket column (10), and a screw hole (11). Socket columns (10) are arranged at both ends of the arc-shaped pressing strip (9), and screw holes (11) are arranged on the socket columns (10). Mounting columns (12) are arranged at positions corresponding to the socket columns (10) in the mounting grooves (6). The socket columns (10) are coaxially sleeved on the mounting columns (12) and fixed by mounting screws. The arc-shaped pressing strip (9) covers the connecting cards (4).

2. The thin and light lumbar support structure of the integrated backrest according to claim 1, characterized in that: A spring groove (8) is provided at the bottom of the mounting groove (6). A spring is elastically installed in the spring groove (8), and the spring is arranged to press against the connecting card (4).

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