Multi-functional linked dining chair

Abstract

The utility model relates to chair technical field, especially multi -functional linkage dining chair, including two side frames of opposite setting and the seat plate connected in its, the side frame includes the first support column and second support column of relatively rotatable, the first support column upper end is inclined to the front, and the upper portion detachably connected has the back, and with the end portion of back jointly define one horizontal handrail structure located the seat plate top, the second support column is configured as when rotating, linkage the seat plate synchronous overturn, and in dining chair unfolded state, the upper end of second support column is inclined to the inside, to with first support column cooperation provides the support, the utility model has the advantages of the detachable design of back, let user can according to actual demand flexible adjustment dining chair's use mode, whether is as ordinary dining chair use, or take off back as temporary seat, all extremely convenient.

Description

Technical Field

[0001] This utility model relates to the field of chair technology, and in particular to a multifunctional interconnected dining chair. Background Technology

[0002] In modern home life, foldable dining chairs (especially children's chairs) have become widely used due to space-saving and easy-to-move considerations. However, existing folding chair designs usually focus on achieving basic "sitting" and "folding" functions, making many compromises in user experience. A significant drawback is that most of them lack armrests. Chairs without armrests present the following problems: First, users lack support when sitting or getting up, which is inconvenient and unsafe for children, the elderly, or people with mobility impairments; second, armless seats reduce comfort and a sense of enclosure; finally, from an aesthetic and sophistication standpoint, armless folding chairs often appear rudimentary and cannot compare to the comfortable lounge chairs commonly found in cafes and restaurants. Utility Model Content

[0003] Therefore, in view of the above problems, this utility model proposes a multi-functional linkage dining chair.

[0004] To solve the above-mentioned technical problems, the solution adopted by this utility model is as follows: A multi-functional interconnected dining chair includes two oppositely arranged side frames and a seat board connected therebetween. The side frame includes a first support column and a second support column that can rotate relative to each other; The upper end of the first support column is inclined forward, and a backrest is detachably connected to its upper part. Together with the end of the backrest, it defines a horizontal armrest structure located above the seat plate. The second support column is configured to rotate synchronously with the seat plate when rotating, and when the chair is unfolded, the upper end of the second support column tilts inward to provide support in conjunction with the first support column.

[0005] As a further improvement of this utility model, a sliding groove is provided on the first support column along its length direction, and a slider is fixedly provided at the top of the second support column, the slider being slidably embedded in the sliding groove; The first support column and the second support column are provided with connecting rods at their lower parts, and the two ends of the connecting rods are respectively hinged to the first support column and the second support column.

[0006] As a further improvement of this utility model, a first support rod is provided between the first support columns on both sides, and a second support rod is provided between the second support columns on both sides. The bottom surface of the seat plate is hinged to the first support rod and the second support rod respectively, so that the seat plate can be flipped in conjunction with the second support column when it rotates.

[0007] As a further improvement of this utility model, it also includes a positioning device for locking the slider when the dining chair is in the unfolded or folded state; The positioning device includes a mounting groove formed on the slider, an elastic element disposed in the mounting groove, and a floating block pushed by the elastic element and partially extending out of the mounting groove; On the wall of the sliding groove, at least two positioning grooves that cooperate with the floating block are spaced apart along its length.

[0008] As a further improvement of this utility model, the positioning groove is an arc-shaped groove, and the end of the floating block is formed into a spherical end or an arc-shaped end that is adapted to the arc-shaped groove.

[0009] As a further improvement of this utility model, a dovetail groove is formed at the upper end of the first support column along its length direction, and a dovetail tenon matching the dovetail groove is provided at the corresponding end of the backrest. The backrest is installed by inserting the dovetail tenon from the top of the first support column into the dovetail groove.

[0010] As a further improvement of this utility model, the backrest is an arc-shaped backrest with a horizontal upper surface and an inclined end at the front end that is adapted to the first support column.

[0011] As a further improvement of this utility model, a plate is detachably provided at the front end of the horizontal handrail structure.

[0012] As a further improvement of this utility model, a connecting groove is provided at the upper end of the first support column, and a mounting boss that can be embedded in the connecting groove is provided on the lower end face of the plate.

[0013] As a further improvement of this utility model, the elastic element is a compression spring.

[0014] The beneficial effects of this utility model are as follows: The backrest is detachable, and the side frame and seat are foldable. The detachable backrest design allows users to flexibly adjust the usage mode of the dining chair according to actual needs, whether used as a regular dining chair or as a temporary seat after removing the backrest. The foldable side frame and seat reduce the space occupied by the dining chair when not in use, making it easier to store and organize in homes or commercial spaces. In addition, this design also makes the dining chair more space-saving during transportation, reducing logistics costs and improving transportation efficiency. Attached Figure Description

[0015] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of this utility model, wherein: Figure 1This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure when folded according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the backrest disassembly in an embodiment of this utility model; Figure 4 This is a schematic diagram of the sliding groove structure of the first support column in an embodiment of this utility model.

[0016] The following are the labels in the diagram: 1. Seat plate; 2. First support column; 3. Second support column; 4. Backrest; 5. Sliding groove; 6. Sliding block; 7. Connecting rod; 8. Rotating groove; 9. First support rod; 10. Second support rod; 11. Mounting groove; 12. Elastic element; 13. Floating block; 14. Positioning groove; 15. Dovetail groove; 16. Dovetail tenon; 17. Dinner plate; 18. Mounting boss; 19. Connecting groove. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0018] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0019] refer to Figures 1 to 4 The present invention discloses the following embodiments: A multi-functional linked dining chair includes two opposing side frames and a seat 1 connected therebetween. Each side frame includes a first support column 2 and a second support column 3 that can rotate relative to each other. The upper end of the first support column 2 is tilted forward, and a backrest 4 is detachably connected to its upper part, defining a horizontal armrest structure above the seat 1 together with the end of the backrest 4. When the dining chair is unfolded, the forward tilt of the upper end of the first support column 2 and its connection with the end of the backrest 4 to define the horizontal armrest structure provide stable armrest support, facilitating user seating and improving safety and comfort. The second support column 3 is configured to rotate synchronously with the seat 1. Simultaneously, the second support column 3 can rotate synchronously with the seat 1, enabling the dining chair to fold. In the unfolded state, the upper end of the second support column 3 tilts inward to provide support in conjunction with the first support column 2. Specifically, due to… When the dining chair is unfolded, the upper end of the first support column 2 tilts forward, requiring the upper end of the second support column 3 to tilt inward. This balances the torque generated by the forward tilt of the first support column 2, ensuring the overall stability of the dining chair and preventing it from tilting forward. Simultaneously, the two support columns, one forward and one inward, form a more stable triangular support structure, enhancing the stability of the dining chair and effectively preventing wobbling during use. In this embodiment, the backrest 4 is detachable, and the side frames and seat 1 are foldable. The detachable backrest 4 allows users to flexibly adjust the chair's usage mode according to actual needs, whether used as a regular dining chair or as a temporary seat. The foldable side frames and seat 1 reduce the space occupied by the chair when not in use, facilitating storage and organization in homes or commercial spaces. Furthermore, this design saves space during transportation, reduces logistics costs, and improves transportation efficiency.Specifically, in this embodiment, a sliding groove 5 is formed along the length of the first support column 2, and a slider 6 is fixedly provided on the side wall of the top end of the second support column 3. The slider 6 has a cylindrical structure and is slidably embedded in the sliding groove 5 and can rotate within the sliding groove 5. A connecting rod 7 is provided at the lower part of both the first support column 2 and the second support column 3, and the two ends of the connecting rod 7 are respectively hinged to the first support column 2 and the second support column 3. In addition, as shown in the figure, the first support column 2 is also provided with a rotating groove 8 for the second support column 3 to rotate, which is more convenient. The first support column 2 has a rotating groove 8 along its length, and a sliding groove 5 is formed at the bottom of the rotating groove 8, extending along the length of the first support column 2. The slider 6 is located in the sliding groove 5, and the second support column 3 is movably disposed in the rotating groove 8, so that the first support column 2 will not interfere with the rotation of the second support column 3. Through the above structure, the second support column 3 can rotate relative to the first support column 2, thereby realizing the folding function. Moreover, through the cooperation of the sliding groove 5 and the slider 6, the folding and unfolding actions are smoother and more stable.

[0020] A first support rod 9 is provided between the first support columns 2 on both sides, and a second support rod 10 is provided between the second support columns 3 on both sides. The bottom surface of the seat plate 1 is hinged to the first support rod 9 and the second support rod 10 respectively, so that the seat plate 1 flips when the second support column 3 rotates, that is, the seat plate 1 is mounted on the first support rod 9 and the second support rod 10. By hinged to the bottom surface of the seat plate 1 by the first support rod 9 and the second support rod 10, the linkage between the seat plate 1 and the second support column 3 is realized, so that the seat plate 1 can automatically flip when folded, thereby saving operation steps. In addition, the first support rod 9 can also limit the distance between the first support columns 2 on both sides. Specifically, the two ends of the first support rod 9 are rotatably connected to the first support columns 2 on both sides respectively. The second support rod 10 can limit the second support columns 3 on both sides. Specifically, the two ends of the second support rod 10 are rotatably connected to the second support columns 3 on both sides respectively, so that the ends of the second support columns 3 always cooperate with the rotation grooves 8 of the first support columns 2.

[0021] In both folded and unfolded states, the slider 6 needs to be fixedly positioned within the sliding groove 5 to prevent the chair from moving or folding accidentally, thus ensuring safe use. Therefore, a positioning device is also included to lock the slider 6 when the chair is unfolded or folded. The positioning device includes a mounting groove 11 on the slider 6, an elastic element 12 (a compression spring pre-compressed within the mounting groove 11) disposed within the mounting groove 11, and a floating block 13 that is pushed by the elastic element 12 and partially extends out of the mounting groove 11. At least two positioning grooves 14, which cooperate with the floating block 13, are spaced apart along the length of the sliding groove 5. By pushing the floating block 13 with the positioning groove 14 through the elastic element 12, the slider 6 is locked when unfolded or folded, thereby restricting further slippage of the slider 6 (the upper end of the second support column 3).

[0022] The positioning groove 14 is an arc-shaped groove, and the end of the floating block 13 is formed into a spherical end or an arc-shaped end that is adapted to the arc-shaped groove; this allows the floating block 13 to enter the positioning groove 14 more smoothly, thereby improving the user's feel during operation and enhancing the overall user experience.

[0023] The upper end of the first support column 2 has a dovetail groove 15 along its length. The corresponding end of the backrest 4 is provided with a dovetail tenon 16 that matches the dovetail groove 15. The backrest 4 is installed by inserting the dovetail tenon 16 from the top of the first support column 2 into the dovetail groove 15. The design of the dovetail groove 15 and the dovetail tenon 16 enables the quick installation and disassembly of the backrest 4. The connection is stable and not easy to loosen. This connection method does not require screws or tools, which reduces manufacturing and maintenance costs, and at the same time makes it convenient for users to clean or replace the backrest 4.

[0024] The backrest 4 is an arc-shaped backrest 4 with a horizontal upper surface and an inclined end at the front end that is adapted to the first support column 2. The arc-shaped backrest 4 can better fit the curve of the human back and provide a more comfortable leaning experience. Its horizontal upper surface makes it convenient for users to place some small items, such as mobile phones and books. The inclined end at the front end is adapted to the first support column 2, which not only enhances the stability of the connection between the backrest 4 and the first support column 2, but also makes the overall structure more coordinated and beautiful.

[0025] The front end of the horizontal handrail structure is detachably equipped with a plate 17. Specifically, the upper end of the first support column 2 is provided with a connecting groove 19, and the lower end face of the plate 17 is provided with a mounting boss 18 that can be embedded in the connecting groove 19. The plate 17 is stably connected to the first support column 2 by embedding the mounting boss 18 into the connecting groove 19. This detachable design allows users to remove the plate 17 when it is not in use to save space or meet other usage needs. When the plate 17 is needed, simply align the mounting boss 18 with the connecting groove 19 and embed it to quickly complete the installation. The operation is simple and the connection is reliable, and it is not easy for it to shake or fall off. This provides convenience for users to place food, tableware, etc. when leaning against the horizontal handrail structure.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-functional interconnected dining chair, comprising two opposing side frames and a seat plate (1) connected therebetween, characterized in that: The side frame includes a first support column (2) and a second support column (3) that can rotate relative to each other; The upper end of the first support column (2) is inclined forward, and a backrest (4) is detachably connected to its upper part. Together with the end of the backrest (4), it defines a horizontal armrest structure located above the seat plate (1). The second support column (3) is configured to rotate synchronously with the seat plate (1) when rotating, and in the unfolded state of the dining chair, the upper end of the second support column (3) is tilted inward to provide support in conjunction with the first support column (2).

2. The multi-functional interconnected dining chair according to claim 1, characterized in that: A sliding groove (5) is provided on the first support column (2) along its length direction, and a slider (6) is fixedly provided at the top of the second support column (3), and the slider (6) is slidably embedded in the sliding groove (5); The first support column (2) and the second support column (3) are provided with connecting rods (7) at their lower parts, and the two ends of the connecting rods (7) are respectively hinged to the first support column (2) and the second support column (3).

3. The multi-functional interconnected dining chair according to claim 1 or 2, characterized in that: A first support rod (9) is provided between the first support columns (2) on both sides, and a second support rod (10) is provided between the second support columns (3) on both sides. The bottom surface of the seat plate (1) is hinged to the first support rod (9) and the second support rod (10) respectively, so that the seat plate (1) will flip when the second support column (3) rotates.

4. The multi-functional interconnected dining chair according to claim 2, characterized in that: It also includes a positioning device for locking the slider (6) when the dining chair is in the unfolded and / or folded state; The positioning device includes a mounting groove (11) opened on the slider (6), an elastic element (12) disposed in the mounting groove (11), and a floating block (13) pushed by the elastic element (12) and partially extending out of the mounting groove (11); On the wall of the sliding groove (5), at least two positioning grooves (14) that cooperate with the floating block (13) are provided at intervals along its length.

5. The multi-functional interconnected dining chair according to claim 4, characterized in that: The positioning groove (14) is an arc-shaped groove, and the end of the floating block (13) is formed as a spherical end or an arc-shaped end that is adapted to the arc-shaped groove.

6. The multifunctional interconnected dining chair according to claim 1, characterized in that: The upper end of the first support column (2) is provided with a dovetail groove (15) along its length direction. The corresponding end of the backrest (4) is provided with a dovetail tenon (16) that matches the dovetail groove (15). The backrest (4) is installed by inserting the dovetail tenon (16) from the top of the first support column (2) into the dovetail groove (15).

7. The multifunctional interconnected dining chair according to claim 6, characterized in that: The backrest (4) is an arc-shaped backrest (4), with its upper surface being horizontal and its front end having an inclined end adapted to the first support column (2).

8. The multifunctional interconnected dining chair according to claim 1, characterized in that: A plate (17) can be detachably installed at the front end of the horizontal handrail structure.

9. The multifunctional interconnected dining chair according to claim 8, characterized in that: The first support column (2) has a connecting groove (19) at its upper end, and the lower end face of the plate (17) is provided with a mounting boss (18) that can be embedded in the connecting groove (19).

10. The multifunctional interconnected dining chair according to claim 4, characterized in that: The elastic element (12) is a compression spring.

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