Backrest assembly, seat and automobile

Abstract

The utility model discloses a backrest assembly, seat and car, including: support beam, the support beam includes support frame and support wire subassembly, the support wire subassembly is provided on the support beam, the support wire subassembly encloses the inside of support frame into a plurality of support space; the supporting frame is arranged on the backrest main body, a plurality of protruding parts are arranged on the backrest main body, and the protruding parts are located in the supporting space; and the pressing plate is arranged on the backrest main body and the backrest main body. Through the arrangement of the supporting frame, the supporting wire assembly, the backrest main body and the protruding part, when the pressing plate is stressed, the protruding part and the backrest main body can provide supporting force for the pressing plate, the pressing plate can gradually make contact with the supporting wire assembly along with increase of pressure, the supporting wire assembly disperses stress of the pressing plate for supporting, and therefore the pressing plate is not prone to falling off. The pressing plate can be stably supported, and the possibility of damage to the pressing plate is reduced.

Description

Technical Field

[0001] The utility model relates to the field of automobiles, in particular to a backrest assembly, a seat and an automobile. Background Art

[0002] Generally, commercial vehicles do not have a sleeper or only a narrow sleeper at the rear, so the rest space for passengers is limited. Generally, it is necessary to make the backrest able to be laid flat forward and then the sleeper is placed to form an overall position for supporting the user. However, the existing backrest has weak back support ability and is easily damaged when supporting the user. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] To solve the above problems, the present application provides a backrest assembly in the first aspect, including:

[0005] A support beam, the support beam includes a support frame and a support wire assembly, the support wire assembly is arranged on the support beam, and the support wire assembly encloses several support spaces inside the support frame;

[0006] A backrest main body, the support frame is arranged on the backrest main body, and several protrusions are arranged on the backrest main body, and the protrusions are located in the support spaces;

[0007] A pressing plate, the pressing plate is arranged on the backrest main body and the backrest main body;

[0008] Wherein, when the pressing plate is not stressed, the pressing plate is in contact with the protrusion;

[0009] When the pressing plate is stressed, the pressing plate presses the protrusion to move towards the support wire assembly.

[0010] Optionally, the support wire assembly includes a first support wire and a second support wire, the first support wire is horizontally arranged on the support frame, and the second support wire is vertically arranged on the support frame.

[0011] Optionally, the side of the protrusion away from the backrest main body protrudes the first support wire and the second support wire.

[0012] Optionally, the backrest main body is fixedly connected or clamped with the support beam.

[0013] Optionally, a buffer groove is opened in the middle of the protrusion.

[0014] Optionally, the backrest main body is an elastic plate, which is made of polyurethane foam material.

[0015] Optionally, the backrest main body and the pressing plate are made of hard PP plates.

[0016] Optionally, it further includes a pillow body, and the pillow body includes a pillow main body and a connecting rod, and the pillow main body is connected to the support frame through the connecting rod.

[0017] The second aspect of the present application provides a seat, including a seat cushion assembly and a backrest assembly according to any technical solution of the first aspect, and the backrest assembly is rotatably arranged on the seat cushion assembly.

[0018] The third aspect of the present application provides a vehicle, including a vehicle body and a seat according to the technical solution of the second aspect, and the seat is arranged on the vehicle body.

[0019] Beneficial effects

[0020] In the embodiments of the present utility model, a backrest assembly, a seat and a vehicle are provided. In the present application, through the settings of the support frame, the support wire assembly, the backrest main body and the convex portion, when the pressing plate is stressed, the convex portion and the backrest main body will provide a supporting force to the pressing plate. As the pressure increases, the pressing plate will gradually come into contact with the support wire assembly, and the support wire assembly disperses the force on the pressing plate for support, which can realize the stable support of the pressing plate, reduce the possibility of damage to the pressing plate, and moreover, through the dispersion of the pressure, reduce the discomfort caused by excessive local stress when applying force to the pressing plate. Description of the drawings

[0021] Figure 1 It is a structural diagram of the backrest assembly of the present utility model;

[0022] Figure 2 It is a structural diagram of the backrest assembly of the present utility model before being stressed;

[0023] Figure 3 It is a structural diagram of the backrest assembly of the present utility model after being stressed;

[0024] Figure 4 It is an internal structural diagram of the backrest assembly of the present utility model;

[0025] Figure 5 It is a structural diagram of the support frame of the backrest assembly of the present utility model;

[0026] Figure 6 It is a sectional structural diagram of the seat of the present utility model;

[0027] Figure 7 It is a structural diagram of the seat of the present utility model.

[0028]

Description of the reference numerals

[0029] 1. Support beam; 11. Support frame; 12. Support wire assembly; 121. First support wire; 122. Second support wire; 2. Backrest main body; 3. Protrusion; 4. Pressure plate; 5. Buffer groove; 6. Pillow body; 61. Pillow main body; 62. Connecting rod; 7. Seat cushion assembly. Detailed implementation mode

[0030] In order to better explain the present invention for easy understanding, the present invention will be described in detail below in conjunction with the drawings through specific implementation modes.

[0031] Refer to in combination Figures 1-5 As shown in the figure, according to the first aspect embodiment of the present application, a backrest assembly is provided, including:

[0032] A support beam 1, the support beam 1 includes a support frame 11 and a support wire assembly 12, the support wire assembly 12 is arranged on the support beam 1, and the support wire assembly 12 encloses several support spaces inside the support frame 11;

[0033] A backrest main body 2, the support frame 11 is arranged on the backrest main body 2, and several protrusions 3 are arranged on the backrest main body 2, and the protrusions 3 are located in the support spaces;

[0034] A pressure plate 4, the pressure plate 4 is arranged on the backrest main body 2 and on the backrest main body 2;

[0035] Wherein, when the pressure plate 4 is not stressed, the pressure plate 4 is in contact with the protrusion 3;

[0036] When the pressure plate 4 is stressed, the pressure plate 4 presses the protrusion 3 to move towards the support wire assembly 12.

[0037] The backrest assembly provided in this embodiment includes a support beam 1, a backrest main body 2, a protrusion 3 and a pressure plate 4. The support beam 1 is an important skeleton structure of the backrest assembly. The support frame 11 is made of high-strength metal alloy material, such as aluminum alloy or titanium alloy. It includes a support frame 11 with a rectangular frame structure and a support wire assembly 12 installed between the support frames 11. The connection between the support wire assembly 12 and the support frame 11 adopts advanced welding, riveting or nesting fastening processes to ensure the firmness and stability of the connection part, and effectively prevent loosening or separation during long-term use or under large pressure.

[0038] The backrest main body 2, as the part directly supporting the user, the support frame 11 is firmly arranged on the backrest main body 2 by means of embedded installation, bolt connection or glue bonding, etc., to ensure that it will not displace or loosen under various use conditions. Several protrusions 3 are arranged on the backrest main body 2, and the protrusions 3 are located in the support spaces.

[0039] The pressing plate 4 is arranged above the backrest main body 2, and the shape of the pressing plate 4 is adapted to that of the backrest main body 2. When the backrest assembly is rotated forward relative to the seat cushion assembly and laid flat to provide a support platform, when the user does not apply force to the pressing plate 4, the pressing plate 4 is in contact with the convex portion 3, and at this time the backrest is in a natural state; when the user applies force relative to the pressing plate, the pressing plate 4 will press down the convex portion 3 and move towards the support wire assembly 12. In this process, the pressing plate 4 will compress the convex portion 3 and the backrest main body 2, and the convex portion 3 and the backrest main body 2 will provide a supporting force to the pressing plate 4. As the pressure increases, the pressing plate 4 will gradually come into contact with the support wire assembly 12, and the support wire assembly 12 will disperse the force on the pressing plate 4 for support, which can achieve stable support for the pressing plate 4, reduce the possibility of damage to the pressing plate 4, and moreover, through the dispersion of the pressure, reduce the discomfort caused by excessive local force when applying force to the pressing plate 4.

[0040] The support wire assembly 12 includes a first support wire 121 and a second support wire 122. The first support wire 121 is horizontally arranged on the support frame 11, and the second support wire 122 is vertically arranged on the support frame 11.

[0041] In this technical solution, the first support wire 121 is horizontally arranged on the support frame 11, and the second support wire 122 is vertically arranged on the support frame 11. This horizontal and vertical interlaced layout effectively enhances the overall support performance of the support wire assembly 12.

[0042] The horizontally arranged first support wire 121 and the vertically arranged second support wire 122 can provide stable supporting forces in the horizontal and vertical directions, effectively resist the pressure applied by the pressing plate 4, and evenly disperse it to the support frame 11, so that the support wire assembly 12 can provide strong support for the pressing plate 4 in all directions and at multiple angles, improving the stability and durability of the backrest assembly, and providing a more comfortable and reliable support experience for the user.

[0043] The side of the convex portion 3 away from the backrest main body 2 protrudes beyond the first support wire 121 and the second support wire 122.

[0044] In this technical solution, the side of the convex portion 3 away from the backrest main body 2 protrudes beyond the first support wire 121 and the second support wire 122. With this setting, on the one hand, when the pressing plate 4 bears pressure, the protruding convex portion 3 can first contact and bear the pressure, dispersing the pressure application point, thereby reducing the direct impact on the backrest main body 2 and the support wire assembly 12. On the other hand, because it protrudes beyond the first support wire 121 and the second support wire 122, the pressure can be more evenly distributed during the transmission process, avoiding local pressure concentration, and further improving the durability and stability of the backrest.

[0045] The backrest main body 2 is fixedly connected or snap-connected to the support beam 1.

[0046] In this technical solution, by fixedly connecting the backrest main body 2 to the support beam 1, the support beam 1 can be prevented from loosening or displacing from the backrest main body 2 during long-term use, providing a stable support structure for the backrest.

[0047] On the other hand, the backrest main body 2 and the support beam 1 can also adopt a snap-connection method. The snap-connection method has the advantages of convenient installation and disassembly, facilitating the quick assembly or disassembly of the backrest when needed, such as for maintenance, component replacement, cleaning, etc.

[0048] By means of fixed connection or snap connection, both the stability and reliability of the connection between the backrest main body 2 and the support beam 1 can be ensured, and the convenience requirements for installation and maintenance in different scenarios can be met.

[0049] A buffer groove 5 is provided in the middle of the convex portion 3.

[0050] In this technical solution, by providing a buffer groove 5 in the middle of the convex portion 3, the elasticity and deformation ability of the convex portion 3 can be increased. When the pressing plate 4 is subjected to pressure, the buffer groove 5 can provide space for the compression and deformation of the convex portion 3, thereby effectively absorbing and buffering the pressure and improving the support ability for the pressing plate 4.

[0051] In addition, the buffer groove 5 can also adjust the force distribution of the convex portion 3, making the pressure more evenly distributed over the entire convex portion 3, avoiding excessive local stress, and further improving the comfort and durability of use.

[0052] The backrest main body 2 is an elastic plate made of polyurethane foam material.

[0053] In this technical solution, the polyurethane foam material has excellent elasticity and softness, enabling the backrest main body 2 to better adapt to the shape of the user's back and providing a fitting and comfortable support. Its good resilience can quickly return to its original state after bearing pressure, maintaining the shape and support effect of the backrest.

[0054] In addition, the polyurethane foam material also has certain air permeability and moisture absorption, which can provide a more comfortable use experience and reduce the stuffy and humid feeling during long-term leaning.

[0055] The pressing plate 4 is a rigid PP plate.

[0056] In this technical solution, the rigid PP plate has good strength and rigidity, which can effectively bear the pressure and transmit it to the convex portion 3 and the support wire assembly 12, ensuring the stability of the backrest structure and realizing the support for the user.

[0057] At the same time, the PP material has good corrosion resistance and wear resistance, and can maintain good performance during long-term use without being easily damaged.

[0058] In addition, the cost of the rigid PP board is relatively low, which helps to reduce the production cost of the backrest assembly and improve the cost performance of the product.

[0059] It also includes a pillow body 6, and the pillow body 6 includes a pillow main body 61 and a connecting rod 62. The pillow main body 61 is connected to the support frame 11 through the connecting rod 62.

[0060] Refer to in combination Figures 6-7 As shown, in the second aspect of this embodiment, a seat is provided, which includes a seat cushion assembly 7 and the backrest assembly in any of the above embodiments. The backrest assembly is rotatably arranged on the seat cushion assembly 7.

[0061] In this technical solution, the seat includes a seat cushion assembly 7 and the backrest assembly in any of the above embodiments, and can achieve the same technical effects, which will not be elaborated here. The backrest assembly is rotatably connected to the seat cushion assembly 7. Therefore, the backrest assembly can be placed above the seat cushion assembly 7 by rotation, so that a platform for lying or sitting can be formed above the pressing plate 4 of the backrest assembly, which is convenient for use.

[0062] In the third aspect of this embodiment, an automobile is provided, which includes a vehicle body and the seat in the above embodiment. The seat is arranged on the vehicle body and can achieve the same technical effects, which will not be elaborated here.

[0063] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0064] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] In the present utility model, unless otherwise clearly defined and limited, when a first feature is "on" or "under" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, when a first feature is "above", "over" or "on top of" a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or it merely means that the horizontal height of the first feature is higher than that of the second feature. When a first feature is "under", "below" or "beneath" a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or it merely means that the horizontal height of the first feature is lower than that of the second feature.

[0066] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0067] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present utility model.

Claims

1. A backrest assembly, characterized in that, Comprising: A support beam (1), the support beam (1) includes a support frame (11) and a support wire assembly (12), the support wire assembly (12) is arranged on the support beam (1), and the support wire assembly (12) encloses several support spaces inside the support frame (11); A backrest main body (2), the support frame (11) is arranged on the backrest main body (2), and several protrusions (3) are arranged on the backrest main body (2), and the protrusions (3) are located in the support spaces; A pressing plate (4), the pressing plate (4) is arranged on the backrest main body (2) and on the backrest main body (2); Wherein, when the pressing plate (4) is not stressed, the pressing plate (4) is in contact with the protrusion (3); When the pressing plate (4) is stressed, the pressing plate (4) presses the protrusion (3) to move towards the support wire assembly (12).

2. The backrest assembly according to claim 1, wherein, The support wire assembly (12) includes a first support wire (121) and a second support wire (122), the first support wire (121) is arranged horizontally on the support frame (11), and the second support wire (122) is arranged vertically on the support frame (11).

3. The backrest assembly according to claim 2, characterized in that, One side of the protrusion (3) away from the backrest main body (2) protrudes from the first support wire (121) and the second support wire (122).

4. The backrest assembly according to claim 3, wherein, The backrest main body (2) is fixedly connected or clamped to the support beam (1).

5. The backrest assembly according to claim 4, wherein A buffer groove (5) is formed in the middle of the protrusion (3).

6. The backrest assembly according to claim 5, characterized in that, The backrest main body (2) is an elastic plate, which is made of polyurethane foam material.

7. The backrest assembly according to claim 6, wherein, The backrest main body (2) and the pressing plate (4) are made of hard PP plates.

8. The backrest assembly according to claim 7, characterized in that, It further includes a pillow body (6), the pillow body (6) includes a pillow main body (61) and a connecting rod (62), and the pillow main body (61) is connected to the support frame (11) through the connecting rod (62).

9. A seat, characterized in that, Comprising a seat cushion assembly (7) and a backrest assembly as described in any one of claims 1-8, and the backrest assembly is rotatably arranged on the seat cushion assembly (7).

10. A vehicle, characterized in that, Comprising a vehicle body and a seat as described in claim 9, and the seat is arranged on the vehicle body.

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