Seat backrest

Abstract

The utility model relates to the field of seats, in particular to a seat backrest. The seat backrest comprises a frame, a supporting plate is installed on the frame, spine supporting pieces are detachably connected to the supporting plate, the spine supporting pieces are located between the supporting plate and the fabric, the number of the spine supporting pieces is two or more, and the spine supporting pieces have multiple kinds of hardness. The seat backrest provided by the utility model has the advantages that the structure is simple, and the spine supporting piece is convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the field of seats, in particular to a seat backrest. Background Art

[0002] Existing seats are provided with a support device to support the human spine, thereby protecting the spine and improving comfort.

[0003] For example, the patent document with the publication number CN112622720A discloses an automobile seat backrest support device for relieving the low back pain symptoms of drivers, including: a support device for the upper waist and the lower part of the chest and back, and a support device for the upper end of the ilium. The support device for the upper waist and the lower part of the chest and back presses the seat backrest forward to form a rectangular protrusion with a length of about 20 ± 5 cm, a width of about 25 ± 5 cm, a height of 1.5 ± 0.8 cm, and the lower edge is about 30 ± 5 cm away from the seat surface, supporting the upper waist and the lower part of the chest and back regions. The support device for the upper end of the ilium presses the seat backrest forward to form a rectangular protrusion with a length of about 7 ± 3 cm, a width of about 25 ± 5 cm, a height of 3 ± 1 cm, and the lower edge is about 13 ± 3 cm away from the seat surface, supporting the upper end of the ilium region.

[0004] Again, the patent document with the publication number CN202200982U discloses a train carriage seat, characterized in that the back contact surface and the waist contact surface on the seat backrest are arc-shaped.

[0005] However, in the above technologies, the support device cannot be disassembled and replaced.

[0006] Therefore, a seat backrest is proposed to solve the above technical problems. Utility Model Content

[0007] To solve the above technical problems, the purpose of the present utility model is to provide a seat backrest, which has the advantages of simple structure and convenient installation and disassembly of the spine support member.

[0008] The technical solution adopted by the present utility model to solve the problem is: a seat backrest, including: a frame, a support plate is installed on the frame, a spine support member is detachably connected to the support plate, the spine support member is located on the support plate, there are two or more spine support members, and two or more spine support members have various hardnesses.

[0009] As a further improvement of the above technical solution, the spine support member is magnetically connected, clamped or connected by screws to the support plate; the spine support members are provided on the upper, middle and lower parts of the support plate, and the spine support members are used to support the thoracic vertebrae, lumbar vertebrae and sacral vertebrae.

[0010] As a further improvement of the above technical solution, a fabric is provided inside the frame, and a load-bearing plate is installed in the middle of the fabric. The position of the load-bearing plate corresponds to that of the spinal support member before and after.

[0011] As a further improvement of the above technical solution, a lumbar cushion is installed on the support plate. The lumbar cushion is arc-shaped, and an elastic band is connected to the front end of the lumbar cushion. The spinal support member includes a lumbar spine support member, and the lumbar spine support member is installed on the lumbar cushion and is located behind the elastic band.

[0012] As a further improvement of the above technical solution, the spinal support member is a sheet with a broken-line cross-section, which is integrally bent and formed from a metal sheet or integrally formed by plastic injection molding. A connecting rib is connected between the two ends of the spinal support member.

[0013] The beneficial effects of the present utility model are as follows: By providing a spinal support member, the human spine can be supported, thereby protecting the spine and improving comfort. At the same time, the spinal support member is detachable. Description of the Drawings

[0014] The following further explains and illustrates the present utility model in conjunction with the description of the drawings and specific embodiments.

[0015] Figure 1 It is a schematic structural diagram of a preferred embodiment of the present utility model;

[0016] Figure 2 is Figure 1 the exploded view shown.

[0017] In the figure: 1, support plate; 2, frame; 21, load-bearing plate; 22, elastic band; 3, fabric; 4, spinal support member; 41, connecting rib; 5, lumbar spine support member; 6, lumbar cushion. Detailed Description of the Embodiments

[0018] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0019] In the description of the present utility model, it should be understood that the orientation descriptions such as up, down, front, back, left, right, etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 the present utility model.

[0020] In the description of the present utility model, the meanings of several and multiple are one or more than two, the meaning of more than two is more than two, understandings such as greater than, less than, exceeding, etc. do not include the base number, and understandings such as above, below, within, etc. include the base number. If the first and second are described, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0021] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0022] Refer to Figures 1 to 2 , a seat backrest, comprising: a frame 2, a support plate 1 is installed on the frame 2, a spine support 4 is detachably connected to the support plate 1, the spine support 4 is located on the support plate 1, there are more than two spine supports 4, and more than two spine supports 4 have various hardnesses. When in use, the spine support 4 is used to support the human spine, which can protect the spine and improve comfort. At the same time, the spine support 4 is convenient to disassemble, and thus it is convenient to replace spine supports 4 with different hardnesses according to personal preferences.

[0023] As a preferred embodiment, the spine support 4 is magnetically connected to the support plate 1, and magnetic parts are provided on both the support plate 1 and the spine support 4. Or the spine support 4 is snap-connected to the support plate 1, or the spine support 4 is connected to the support plate 1 by screws. The upper, middle and lower parts of the support plate 1 are all provided with spine supports 4, and the spine supports 4 are used to support the thoracic vertebrae, lumbar vertebrae and sacral vertebrae, which is convenient for installation and disassembly.

[0024] As a preferred embodiment, a fabric 3 is provided in the frame 2, a bearing plate 21 is installed on the fabric 3, and the position of the bearing plate 21 corresponds to that of the spine support 4 front and back, which can ensure the flatness of the gap of the spine support 4 and ensure comfort.

[0025] As a preferred embodiment, a lumbar pad 6 is installed on the support plate 1, the lumbar pad 6 is arc-shaped, an elastic band 22 is connected to the front end of the lumbar pad 6, and the spine support 4 includes a lumbar spine support 5, and the lumbar spine support 5 is installed on the lumbar pad 6 and is located behind the elastic band 22. The lumbar pad 6 and the elastic band 22 can be used to support the waist.

[0026] As a preferred embodiment, the spine support 4 is a sheet with a broken-line cross-section, which is integrally bent and formed from a metal sheet or integrally injection-molded from plastic, and a connecting rib 41 is connected between the two ends of the spine support 4. The deformation ability of the support 4 itself makes it have a certain elastic support effect.

[0027] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be included within the patent protection scope of the present utility model.

Claims

1. A seat backrest, characterized in that, Including: A frame (2), a support plate (1) is installed on the frame (2), a spine support member (4) is detachably connected to the support plate (1), and the spine support member (4) is located on the support plate (1).

2. A seat back according to claim 1, wherein: There are two or more of the spine support members (4), and the two or more spine support members (4) have multiple hardnesses; The spine support member (4) is magnetically connected, snap-connected or connected by screws to the support plate (1); The spine support members (4) are provided at the upper, middle and lower parts of the support plate (1), and the spine support members (4) are used to support the thoracic vertebrae, lumbar vertebrae and sacral vertebrae.

3. A seat back according to claim 1, wherein: A fabric (3) is provided inside the frame (2), a load-bearing plate (21) is installed on the fabric (3), and the positions of the load-bearing plate (21) and the spine support member (4) correspond to each other front and back.

4. A seat back according to any one of claims 1-3, wherein: A lumbar pad (6) is installed on the support plate (1), the lumbar pad (6) is arc-shaped, an elastic band (22) is connected to the front end of the lumbar pad (6), the spine support member (4) includes a lumbar spine support member (5), and the lumbar spine support member (5) is installed on the lumbar pad (6) and is located behind the elastic band (22).

5. A seat back according to claim 2, wherein: The spine support member (4) is a sheet with a broken-line cross-section, which is integrally bent from a metal sheet or integrally formed by plastic injection molding, and a connecting rib (41) is connected between the two ends of the spine support member (4).

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