An adjustable backrest assembly

Abstract

This utility model relates to the field of seating technology, and in particular to an adjustable support backrest assembly, comprising a main body, the main body including a back panel and a support plate, the support plate being connected to the back panel via at least two vertically distributed detachable connection points; by selectively connecting or disconnecting different connection points, the overall support force of the backrest assembly can be changed. This utility model, by providing two vertically distributed detachable connection points between the back panel and the support plate, and by selectively connecting or disconnecting different connection points, changes the overall support force of the backrest assembly, thereby adapting to the different backrest support needs of different people.

Description

Technical Field

[0001] This utility model relates to the field of seat technology, and in particular to an adjustable support backrest assembly. Background Technology

[0002] In the existing technology, in order to better support the back, ergonomic chairs with back support plates have gradually appeared on the market. The support plate is placed against the middle of the backrest to provide individual support for the human spine and better protect the spine.

[0003] However, the fixing method between the support plate and the back panel is constant, and the back support force cannot be adjusted by changing the fixing method, so it cannot adapt to the different back support force needs of different people in a timely manner. Utility Model Content

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a backrest assembly with adjustable support force.

[0005] The technical solution adopted by this utility model to solve the problem is: an adjustable support backrest assembly, including a main body, the main body including a back panel and a support plate, the support plate and the back panel being connected by at least two vertically distributed detachable connection points; by selectively connecting or disconnecting different connection points, the overall support force of the backrest assembly can be changed.

[0006] As a further improvement to the above technical solution, the connection point includes a first connection portion disposed on the support plate and a second connection portion disposed on the back plate, wherein the first connection portion and the second connection portion are detachably connected.

[0007] As a further improvement to the above technical solution, at least one connection point is located near the upper end of the main body, and at least one connection point is located near the middle of the main body.

[0008] As a further improvement to the above technical solution, the upper part of the support plate is attached to the back plate, and a gap is left between the lower part of the support plate and the back plate; the connection point is located at the attachment part between the support plate and the back plate.

[0009] As a further improvement to the above technical solution, the first connecting part and the second connecting part are detachably connected by bolts.

[0010] As a further improvement to the above technical solution, the first connecting part includes a first connecting hole and a nut pre-embedded in the first connecting hole, and the second connecting part includes a second connecting hole; the bolt passes through the second connecting hole and the first connecting hole in sequence, and the stud portion of the bolt is screwed to the nut.

[0011] As a further improvement to the above technical solution, at least two connection points are set on the left and right.

[0012] The beneficial effects of this utility model are: by setting two detachable connection points distributed vertically between the back panel and the support plate, the overall support force of the backrest assembly can be changed by selectively connecting or disconnecting different connection points, thereby adapting to the needs of different people for different backrest support forces in a timely manner. Attached Figure Description

[0013] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is an exploded view of the preferred structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0016] In the figure: 1-support plate, 11-first connecting part, 2-back plate, 21-second connecting part, 3-gap. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0020] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0021] Reference Figures 1 to 2 An adjustable support backrest assembly includes a main body, which includes a back panel 2 and a support plate 1 detachably connected together. A plurality of connection points are provided between the back panel 2 and the support plate 1. Each connection point includes a first connection portion 11 on the support plate 1 and a second connection portion 21 on the back panel 2. The first connection portion 11 and the second connection portion 21 are detachably connected. At least two connection points are arranged one above the other. The upper connection point is located near the upper end of the main body, and the lower connection point is located near the middle of the main body. By setting two detachable connection points at the top and bottom, at least three fixing methods are possible between the back panel 2 and the support plate 1, as follows: First fixing method: the upper connection point is connected, the lower connection point is not connected. In this case, the overall tilting force of the main body is weak, but the upper support force of the main body is strong, supporting the upper back of the user. Second fixing method: the upper connection point is not connected, the lower connection point is connected. In this case, the overall tilting force of the main body is moderate, the upper support force of the main body is moderate, and the upper part of the main body can adapt well to the terrain and conform to the upper back of the user. Third fixing method: the upper connection point is connected, the lower connection point is connected. In this case, the overall tilting force of the main body is strong, suitable for users who need strong back support. Through the above settings, the back panel 2 and the support plate 1 have multiple fixing methods, and the support force (also known as support stiffness) of different fixing methods is different. Therefore, the fixing method can be adjusted to meet the different back support needs of different people.

[0022] In some embodiments, the upper part of the support plate 1 is fitted to the back plate 2, and a gap 3 is left between the lower part of the support plate 1 and the back plate 2; the connection point is located at the fitting portion between the support plate 1 and the back plate 2. This provides considerable deformation space for the lumbar vertebrae in the lower back while supporting the upper back.

[0023] In some embodiments, the first connecting portion 11 and the second connecting portion 21 are detachably connected by bolts.

[0024] In some embodiments, the first connecting portion 11 includes a first connecting hole and a nut pre-embedded in the first connecting hole, and the second connecting portion 21 includes a second connecting hole; the bolt passes through the second connecting hole and the first connecting hole in sequence, and the stud portion of the bolt is screwed to the nut.

[0025] In a preferred embodiment, at least two connection points are arranged horizontally to improve assembly stability. In this embodiment, the two connection points are arranged horizontally, one above the other.

[0026] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A backrest assembly with adjustable support force, comprising a main body, the main body including a back panel (2) and a support plate (1), characterized in that: The support plate (1) and the back plate (2) are connected by at least two detachable connection points distributed vertically; by selectively connecting or disconnecting different connection points, the overall support force of the backrest assembly can be changed.

2. The adjustable support backrest assembly as described in claim 1, characterized in that: The connection point includes a first connection part (11) disposed on the support plate (1) and a second connection part (21) disposed on the back plate (2), and the first connection part (11) and the second connection part (21) are detachably connected.

3. The adjustable support backrest assembly as described in claim 2, characterized in that: At least one connection point is located near the upper end of the main body, and at least one connection point is located near the middle of the main body.

4. The adjustable support backrest assembly as described in claim 3, characterized in that: The upper part of the support plate (1) is attached to the back plate (2), and a gap (3) is left between the lower part of the support plate (1) and the back plate (2); The connection point is located at the fitting part between the support plate (1) and the back plate (2).

5. A backrest assembly with adjustable support force as described in claim 2, characterized in that: The first connecting part (11) and the second connecting part (21) are detachably connected by bolts.

6. The adjustable support backrest assembly as described in claim 5, characterized in that: The first connecting part (11) includes a first connecting hole and a nut pre-embedded in the first connecting hole, and the second connecting part (21) includes a second connecting hole; The bolt passes through the second connecting hole and the first connecting hole in sequence, and the stud portion of the bolt is screwed to the nut.

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