Ergonomic dining chair with angle adjustment function

Abstract

The utility model discloses an ergonomic dining chair with an angle adjusting function, which is characterized by comprising a base, a telescopic rod component, a chair seat frame, a chair seat cushion, a back frame, a chair backrest, a chair back connecting mechanism and a swinging reed, the chair seat frame is telescopically mounted above the base through the telescopic rod assembly; the chair seat cushion is detachably mounted on the chair seat frame; the back frame is vertically fixed on the rear side of the chair seat frame; the bottom end of the swinging reed is fixedly mounted on the chair back connecting mechanism; the chair back connecting mechanism is rotatably mounted below the back frame; and the chair backrest is mounted on the swinging reed and can swing back and forth relative to the chair back connecting mechanism. A linkage adjusting mechanism of the telescopic rod assembly and the chair back connecting assembly can meet the sitting posture requirements of people with different heights, the height of the chair seat and the inclination angle of the backrest can be adjusted and adapted, a dynamic function meeting the natural rhythm requirements of a human body is provided, and proper swinging movement can promote blood circulation and improve the long-time sitting comfort.

Description

Technical Field

[0001] This utility model relates to the field of dining chair technology, and in particular to an ergonomic dining chair with adjustable angle. Background Technology

[0002] Traditional dining chairs, as an important part of everyday home life, have long been designed with basic posture requirements in mind, often employing fixed structures with wooden or metal frames. Current technology generally focuses on optimizing aesthetics and basic support performance, lacking in-depth consideration of ergonomic dynamic adaptation. Specifically, mainstream products typically only feature rigid, fixed backrests or very limited height adjustment, failing to offer multi-dimensional adjustments for backrest angle, seat depth, and lumbar support. This static design leads to discomfort such as lumbar spine imbalance and neck and shoulder fatigue for users of different heights and body types during prolonged meals or working from home, especially for children and the elderly. Furthermore, existing dining chairs generally lack dynamic functional modules that conform to the body's natural rhythms, such as a rocking mechanism that accommodates subtle sitting movements. Moderate rocking motion can promote blood circulation and improve comfort during extended sitting. Therefore, further improvements are needed. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an ergonomic dining chair with angle adjustment.

[0004] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: an ergonomic dining chair with angle adjustment, characterized in that it includes: a base, a telescopic rod assembly, a seat frame, a seat cushion, a back frame, a backrest, a backrest connecting mechanism, and a rocking spring.

[0005] The chair frame is telescopically mounted above the base via a telescopic rod assembly; the seat cushion is detachably mounted to the chair frame; the backrest is vertically fixed to the rear side of the chair frame; the bottom end of the rocking spring is fixedly mounted to the backrest connecting mechanism; the backrest connecting mechanism is rotatably mounted below the backrest; the chair back is mounted to the rocking spring and can rock back and forth relative to the backrest connecting mechanism.

[0006] Optionally, the chair back connecting mechanism includes a first connecting seat and a second connecting seat that are rotatably connected; the bottom end of the rocker spring is mounted on the first connecting seat; and the second connecting seat is fixed to the back frame.

[0007] Optionally, the chair back connection mechanism further includes a limiting locking component; the limiting locking component is used to limit the relative position of the first connecting seat and the second connecting seat.

[0008] Optionally, the limiting and locking assembly includes a sliding spline block, a tension spring, and an unlocking block; the first connecting seat and the second connecting seat are provided with a first spline tooth and a second spline tooth, and the first spline tooth and the second spline tooth are separated back and forth along the axial direction; the sliding spline block is slidably mounted on the first spline tooth and can respectively engage the first spline tooth and the second spline tooth.

[0009] The tension spring causes the sliding spline block to return to the position between the first connecting seat and the second connecting seat, and simultaneously engages the first spline tooth and the second spline tooth.

[0010] Pressing the unlocking block allows the sliding spline block to fully engage with the first connecting seat, thus releasing the engagement between the sliding spline block and the second connecting seat.

[0011] Optionally, the backrest connecting mechanism and the rocking spring are provided in two sets, located at both ends of the back frame in the lateral direction.

[0012] Optionally, the chair frame is provided with armrest support rods and armrest plates rotatably mounted on the top of the armrest support rods.

[0013] Optionally, one side of the seat cushion is rotatably connected to the seat frame via a hinge; the side of the seat cushion away from the hinge is provided with a telescopic movable component to allow the seat cushion to rotate relative to the seat frame.

[0014] Optionally, the telescopic movable component is a screw-slider structure.

[0015] The beneficial effects of this utility model are as follows: The linkage adjustment mechanism between the telescopic rod assembly and the backrest connection assembly can adapt to the sitting posture needs of people of different heights, and adjust the seat height and backrest tilt angle accordingly; and the spring-type rocking mechanism, through its non-linear elastic deformation characteristics, provides a certain degree of freedom for tilting forward and backward while maintaining a forward-facing reset support effect. This not only meets the physiological needs of the human body's micro-movements while sitting, but also effectively conforms to and supports the human back. While maintaining the basic functions of the dining chair, it provides dynamic functions that meet the needs of the human body's natural rhythm. The forward and backward rocking mechanism for micro-movements while sitting, with moderate rocking motion, can promote blood circulation and improve the comfort of prolonged sitting.

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1This is a structural schematic diagram of the ergonomic dining chair of this utility model;

[0019] Figure 2 This is a schematic diagram of the backrest connection mechanism and rocking spring of this utility model;

[0020] Figure 3 A cross-sectional view of the chair back connecting mechanism and the rocking spring of this utility model.

[0021] Explanation of key component symbols:

[0022] 10. Base; 20. Telescopic rod assembly; 30. Seat frame; 31. Hinge seat; 32. Telescopic movable assembly; 40. Seat cushion; 50. Backrest frame; 60. Backrest; 70. Backrest connecting mechanism; 71. First connecting seat; 711. First spline tooth; 72. Second connecting seat; 721. Second spline tooth; 73. Limit locking assembly; 731. Sliding spline block; 732. Tension spring; 733. Unlocking block; 80. Rocking spring; 90. Armrest support rod; 91. Armrest board. Detailed Implementation

[0023] 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 the 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.

[0024] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0025] 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.

[0026] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. 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.

[0027] Example

[0028] Reference Figures 1 to 3 The present invention proposes an ergonomic dining chair with angle adjustment, characterized in that it includes: a base 10, a telescopic rod assembly 20, a seat frame 30, a seat cushion 40, a back frame 50, a backrest 60, a backrest connecting mechanism 70, and a rocking spring 80.

[0029] The seat frame 30 is telescopically mounted above the base 10 via the telescopic rod assembly 20; the seat cushion 40 is detachably mounted on the seat frame 30; the backrest 50 is vertically fixed to the rear side of the seat frame 30; the bottom end of the rocking spring 80 is fixedly mounted on the backrest connecting mechanism 70; the backrest connecting mechanism 70 is rotatably mounted below the backrest 50; the backrest 60 is mounted on the rocking spring 80 and can rock back and forth relative to the backrest connecting mechanism 70.

[0030] In this invention, the linkage adjustment mechanism between the telescopic rod assembly 20 and the backrest connection assembly can adapt to the sitting posture needs of people of different heights, adjusting the seat height and backrest angle. Furthermore, the spring-type rocking mechanism, through its non-linear elastic deformation characteristics, provides a certain degree of freedom for forward and backward tilting while maintaining a forward-facing restoring support effect. This not only meets the physiological needs of the human body's micro-movements while sitting, but also effectively supports the human back. While maintaining the basic functions of the dining chair, it provides dynamic functions that meet the needs of the human body's natural rhythm. The forward and backward rocking mechanism for micro-movements in sitting posture, with moderate rocking motion, can promote blood circulation and improve the comfort of prolonged sitting.

[0031] In this embodiment, the backrest connection mechanism 70 includes a first connecting seat 71 and a second connecting seat 72 that are rotatably connected; the bottom end of the rocker spring 80 is mounted on the first connecting seat 71; and the second connecting seat 72 is fixed to the backrest frame 50. Through the staggered assembly design of the first connecting seat 71 and the second connecting seat 72, two-stage torque compensation is formed during the backrest adjustment process, which ensures both ease of adjustment and avoids displacement caused by accidental touch.

[0032] Specifically, the backrest connection mechanism 70 also includes a limiting locking assembly 73; the limiting locking assembly 73 is used to limit the relative position of the first connecting seat 71 and the second connecting seat 72. By limiting the relative position of the first connecting seat 71 and the second connecting seat 72, the limiting locking assembly 73 allows the front backrest to rock back and forth in a static angle state, thereby achieving angle adjustment in the static angle state and providing a rocking support effect for the rocking spring 80, which can be either more rigid or more flexible.

[0033] In this embodiment, the limiting and locking assembly 73 includes a sliding spline block 731, a tension spring 732, and an unlocking block 733; the first connecting seat 71 and the second connecting seat 72 are provided with a first spline tooth 711 and a second spline tooth 721, which are separated axially; the sliding spline block 731 is slidably mounted on the first spline tooth 711 and can respectively engage the first spline tooth 711 and the second spline tooth 721; the tension spring 732 resets the sliding spline block 731 between the first connecting seat 71 and the second connecting seat 72, and simultaneously engages the first spline tooth 711 and the second spline tooth 721; pressing the unlocking block 733 can cause the sliding spline block 731 to completely sink into the first connecting seat 71, releasing the engagement connection between the sliding spline block 731 and the second connecting seat 72.

[0034] In this embodiment, the staggered meshing design of the sliding spline block 731 and the double spline teeth ensures a stable connection with multiple contact teeth in the locked state. By pressing the unlocking block 733, the limiting fixation of the first connecting seat 71 and the second connecting seat 72 can be released, thereby rotating the second connecting seat 72 and changing the relative position and static angle of the first connecting seat 71 and the second connecting seat 72 to adjust the rocking support effect of the rocking spring 80 to be more rigid or more flexible.

[0035] In this embodiment, two sets of backrest connecting mechanisms 70 and rocking springs 80 are provided, located at both ends of the backrest frame 50 in the lateral direction. The symmetrical layout of the double sets of rocking mechanisms improves the lateral bending stiffness. It is specifically adapted to the rocking habits of users of different body types, reducing the center offset of the chair back 60.

[0036] In this embodiment, the chair frame 30 is provided with an armrest support rod 90 and an armrest plate 91 rotatably mounted on the top of the armrest support rod 90. The armrest plate 91 has a built-in damper in its rotation mechanism, supporting stepless multi-angle rotation. The ergonomic curved surface design increases the contact area of ​​the forearm and results in more uniform pressure distribution at the elbow.

[0037] In this embodiment, one side of the seat cushion 40 is rotatably connected to the seat frame 30 via a hinge seat 31; a telescopic movable component 32 is provided on the side of the seat cushion 40 away from the hinge seat 31, so that the seat cushion 40 can rotate relative to the seat frame 30 to achieve front and back adjustment of the seat cushion 40.

[0038] In this embodiment, the telescopic movable component 32 is a screw-slider structure. By rotating the screw, the slider mounted on the seat cushion 40 can be moved up and down.

[0039] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. An ergonomic dining chair with adjustable angle, characterized in that, include: The base (10), telescopic rod assembly (20), chair frame (30), chair cushion (40), back frame (50), chair back (60), chair back connecting mechanism (70) and rocking spring (80); The chair frame (30) is telescopically mounted above the base (10) via a telescopic rod assembly (20); the chair cushion (40) is detachably mounted on the chair frame (30); the back frame (50) is vertically fixed to the rear side of the chair frame (30); the bottom end of the rocking spring (80) is fixedly mounted on the backrest connecting mechanism (70); the backrest connecting mechanism (70) is rotatably mounted below the back frame (50); the chair back (60) is mounted on the rocking spring (80) and can rock back and forth relative to the backrest connecting mechanism (70).

2. The ergonomic dining chair with angle adjustment according to claim 1, characterized in that: The chair back connecting mechanism (70) includes a first connecting seat (71) and a second connecting seat (72) that are rotatably connected; the bottom end of the rocking spring (80) is installed on the first connecting seat (71); and the second connecting seat (72) is fixed to the back frame (50).

3. The ergonomic dining chair with angle adjustment according to claim 2, characterized in that: The chair back connection mechanism (70) further includes a limiting locking component (73); the limiting locking component (73) is used to limit the relative positions of the first connecting seat (71) and the second connecting seat (72).

4. The ergonomic dining chair with angle adjustment according to claim 3, characterized in that: The limiting and locking assembly (73) includes a sliding spline block (731), a tension spring (732), and an unlocking block (733); the first connecting seat (71) and the second connecting seat (72) are provided with a first spline tooth (711) and a second spline tooth (721), and the first spline tooth (711) and the second spline tooth (721) are separated back and forth along the axial direction; the sliding spline block (731) is slidably installed on the first spline tooth (711) and can respectively mesh with the first spline tooth (711) and the second spline tooth (721); The tension spring (732) causes the sliding spline block (731) to return to the position between the first connecting seat (71) and the second connecting seat (72), and simultaneously engages the first spline tooth (711) and the second spline tooth (721). Pressing the unlocking block (733) allows the sliding spline block (731) to be completely inserted into the first connecting seat (71), thereby releasing the engagement connection between the sliding spline block (731) and the second connecting seat (72).

5. The ergonomic dining chair with angle adjustment according to claim 1, characterized in that: The backrest connecting mechanism (70) and the rocking spring (80) are provided in two sets, located at the two lateral ends of the back frame (50).

6. The ergonomic dining chair with angle adjustment according to claim 1, characterized in that: The chair frame (30) is provided with an armrest support rod (90) and an armrest plate (91) rotatably mounted on the top of the armrest support rod (90).

7. The ergonomic dining chair with angle adjustment according to claim 1, characterized in that: One side of the seat cushion (40) is rotatably connected to the seat frame (30) via a hinge seat (31); a telescopic movable component (32) is provided on the side of the seat cushion (40) away from the hinge seat (31) so that the seat cushion (40) can rotate relative to the seat frame (30).

8. The ergonomic dining chair with angle adjustment according to claim 7, characterized in that: The telescopic movable component (32) is a screw-slider structure.

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