Stable-supporting folding chair

By introducing a base plate and connecting rod structure into the folding chair, expanding the support area, and providing a retractable placement board inside the seat plate, the problem of insufficient stability of the folding chair is solved, achieving higher stability and functionality in use while maintaining portability.

CN223335795UActive Publication Date: 2025-09-16YONGKANG TIANDI TOOLS CO LTD
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Patent Information

Application Number
CN202422779643.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-09-16
Estimated Expiration
2034-11-14

AI Technical Summary

Technical Problem

The supporting legs of existing folding chairs have a small contact area with the ground after being unfolded, resulting in insufficient stability. Especially when used on uneven or slippery ground, it is easy to lose balance and even fall.

Method used

A folding chair with stable support is designed. The support area is expanded by connecting the base plate and the connecting rod at the bottom end of the support frame, and the connection stability is improved by the limit block and spring structure. At the same time, a retractable placement plate is set in the seat plate to increase functionality and convenience.

Benefits of technology

The stability and ease of use of the folding chair are improved, additional placement space is provided, and no additional space is taken up when not in use, maintaining portability and storage efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a stably supported folding chair, which comprises a folding chair body, the folding chair body comprises a support frame and a seat plate, the seat plate is connected with the support frame through a rotating rod, the outer side of the bottom end of the support frame is fixedly connected with four mounting seats, the mounting seats are internally provided with connecting blocks, and the connecting blocks are fixedly connected with the support frame. The connecting block is fixedly connected with the first hinge seat, the first hinge seat is hinged with the connecting rod, one end of the connecting rod is hinged with the second hinge seat, and the second hinge seat is fixedly connected with the bottom plate. The bottom plate and the supporting frame can form a stable supporting structure through the connecting rods, the supporting area can be effectively expanded through the bottom plate, the stability of the chair is improved, and the problem that a traditional folding chair is unstable due to the fact that the ground contact area of supporting legs is small is solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of folding chairs, in particular to a folding chair with stable support. Background Art

[0002] A folding chair is a lightweight, portable, and stackable chair. Its design makes it easy to move and saves space. Folding chairs are typically constructed from a steel frame and plastic, making them durable yet relatively lightweight.

[0003] However, in existing technologies, most folding chairs rely on four supporting legs to provide the necessary support. Although this design offers significant advantages in portability and storage efficiency, due to the folding design, the four supporting legs have a relatively small contact area with the ground when unfolded. This small contact area causes the chair's support points to be overly concentrated, thereby reducing its overall stability. This design flaw makes it easy for users to lose their balance when sitting, especially on uneven or slippery surfaces, and they may even fall to the ground, causing physical injury. Currently, no effective solution has been proposed to address the problems in the related art. Utility Model Content

[0004] In view of the problems in the related art, the present invention proposes a folding chair with stable support to overcome the above technical problems existing in the existing related art.

[0005] To this end, the specific technical solutions adopted in this utility model are as follows:

[0006] A folding chair with stable support includes a folding chair body, the folding chair body includes a support frame and a seat plate, the seat plate is connected to the support frame through a rotating rod, a mounting seat is fixedly connected to the outer side of the bottom end of the support frame, and there are four mounting seats. A connecting block is provided inside the mounting seat, and the connecting block is fixedly connected to a first hinge seat. The first hinge seat is hinged to a connecting rod, one end of the connecting rod is hinged to a second hinge seat, and the second hinge seat is fixedly connected to the base plate.

[0007] Furthermore, in order to facilitate the disassembly of the connecting rod and the base plate, limit blocks are provided on both sides of the connecting block, and a limit groove is provided inside the mounting seat. The limit block matches the limit groove, and a groove is provided inside the limit block. A spring is provided inside the groove, and one end of the spring is connected to the limit block, and the other end is connected to the clamping column.

[0008] Furthermore, a card slot is provided on the mounting seat, and the card post matches the card slot.

[0009] Furthermore, in order to increase the function of this folding chair and make it easier for users to place items, two slide grooves are fixed inside the seat plate, and a slider is slidably connected inside the slide groove. The slider is connected to the placement plate. There are two placement plates, and one end of the placement plate passes through the seat plate and is connected to the pull plate. A fixed groove is provided on the seat plate, and the fixed groove matches the pull plate.

[0010] Furthermore, in order to ensure the stability of the pull plate and prevent the pull plate from moving at will, the pull plate is connected to the base plate through a magnet.

[0011] Furthermore, in order to facilitate the movement of the pull plate, a notch is provided on the seat plate, and the notch is provided above the pull plate.

[0012] Furthermore, the seat plate is made of plastic.

[0013] The beneficial effects of the utility model are:

[0014] (1) By providing a base plate and connecting rods, the folding chair can be unfolded and used. The base plate can form a stable support structure with the support frame through the connecting rods. The base plate can effectively expand the support area and improve the stability of the chair, avoiding the instability problem caused by the small contact area of ​​the support legs on the ground in traditional folding chairs. When the base plate is not needed, it can be easily removed without affecting the folding characteristics of the chair itself. This not only makes the chair easier to carry and store, but also provides the flexibility to choose whether to use it according to actual needs.

[0015] (2) By providing a placement board, this design allows the user to pull the placement board out from the inside of the seat. This ingenious design provides users with an additional placement space, allowing them to conveniently place items on the placement board. This design not only increases the functionality of the folding chair, but also improves the convenience and comfort of the user. In addition, since the placement board is pulled out from the inside of the seat, it can be folded away when not in use, without taking up additional space or affecting the portability and storage efficiency of the folding chair. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a front view of a folding chair with stable support according to an embodiment of the utility model.

[0018] Figure 2This is a structural diagram of a folding chair with stable support according to an embodiment of the present utility model.

[0019] Figure 3 This is a connection diagram of the first hinged seat of a folding chair with stable support according to an embodiment of the present utility model.

[0020] Figure 4 This is a bottom structural diagram of a folding chair seat plate with stable support according to an embodiment of the present utility model.

[0021] In the picture:

[0022] 1. Folding chair body; 2. Support frame; 3. Seat plate; 4. Rotating rod; 5. Mounting seat; 6. Connecting block; 7. First hinge seat; 8. Connecting rod; 9. Second hinge seat; 10. Bottom plate; 11. Limiting block; 12. Limiting slot; 13. Groove; 14. Spring; 15. Clamping column; 16. Clamping slot; 17. Slide; 18. Slider; 19. Placement plate; 20. Pull plate; 21. Fixing slot; 22. Magnet; 23. Notch. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] According to an embodiment of the present invention, a folding chair with stable support is provided.

[0025] Example 1

[0026] like Figures 1-4As shown, a folding chair with stable support according to an embodiment of the present invention includes a folding chair body 1, which includes a support frame 2 and a seat plate 3. The seat plate 3 is made of plastic material. The seat plate 3 is connected to the support frame 2 through a rotating rod 4, allowing the seat plate 3 to rotate relative to the support frame 2, thereby realizing a folding function. A mounting seat 5 is fixedly connected to the outer side of the bottom end of the support frame 2. There are four mounting seats 5. A connecting block 6 is provided inside the mounting seat 5 of the mounting seat 5. The connecting block 6 is fixedly connected to the first hinge seat 7. The first hinge seat 7 is hinged to the connecting rod 8. One end of the connecting rod 8 is connected to the second hinge The connecting seat 9 is hinged, the second hinged seat 9 is fixedly connected to the base plate 10, limit blocks 11 are provided on both sides of the connecting block 6, and a limit groove 12 is provided inside the mounting seat 5. The limit block 11 matches the limit groove 12. By setting the limit block 11 and the limit groove 12, the connection area between the connecting block 6 and the mounting seat 5 is increased, and the structural stability of the folding chair is improved. A groove 13 is provided inside the limit block 11, and a spring 14 is provided inside the groove 13. One end of the spring 14 is connected to the limit block 11, and the other end is connected to the card column 15. A card slot 16 is provided on the mounting seat 5, and the card column 15 matches the card slot 16. Through the above solution, by connecting the base plate 10 to the outside of the support frame 2 through the connecting rod 8, the base plate 10 can effectively expand the support area, improve the stability of the chair, and avoid the instability problem of the traditional folding chair caused by the small area of ​​the support frame 2 contacting the ground. When the base plate 10 is not needed, the card column 15 can be pressed to retract the card column 15 into the card slot 16, and then the connecting block 6 can be pulled upward to disassemble the connecting block 6, so that the base plate 10 can be disassembled. The disassembly is relatively simple and convenient for the user to operate.

[0027] like Figures 1-4 As shown, two slide grooves 17 are fixed inside the seat plate 3. Slide blocks 18 are slidably connected inside the slide grooves 17. Slide blocks 18 are connected to a placement plate 19. There are two placement plates 19. One end of the placement plate 19 passes through the seat plate 3 and is connected to the pull plate 20. The seat plate 3 is provided with a fixing groove 21, which matches the pull plate 20. The pull plate 20 is connected to the seat plate 3 via a magnet 22, allowing the pull plate 20 to fit into the fixing groove 21. In addition, the pull plate 20 is connected to the seat plate 3 via a magnet 22, ensuring that the placement plate 19 can be firmly fixed under the seat plate 3 when not in use without taking up additional space. The seat plate 3 is provided with a notch 23, which is located above the pull plate 20. The provision of the notch 23 allows the user to easily pull the pull plate 20 when needed, thereby extending the placement plate 19 from the seat plate 3 for use. Through the above scheme, the retractable function of the placement plate 19 is realized. When it is necessary to place things on the placement plate 19, the pulling plate 20 can be pulled through the notch 23, so that the placement plate 19 can be pulled out, which can provide additional placement space when needed and can be completely stored in the seat plate 3 when not in use, without affecting the portability and aesthetics of the chair.

[0028] In summary, thanks to the above-mentioned technical solutions of the present invention, by providing the base plate 10 and connecting rods 8, the base plate 10 forms a stable support structure with the support frame 2 through the connecting rods 8 when the folding chair is unfolded for use. This effectively expands the support area and improves the chair's stability, avoiding the instability associated with the limited ground contact area of ​​the support legs in conventional folding chairs. Furthermore, when the base plate 10 is no longer needed, it can be easily removed without affecting the chair's folding properties. This not only makes the chair easier to carry and store, but also provides the flexibility of whether to use it or not based on actual needs. Furthermore, the provision of a storage plate 19 allows the user to pull it out from within the seat 3. This ingenious design provides additional storage space for users to conveniently place items on the storage plate 19, enhancing the folding chair's functionality while also improving user convenience and comfort. Furthermore, since the storage plate 19 is pulled out from within the seat 3, it can be folded away when not in use, eliminating the need for additional space and compromising the chair's portability and storage efficiency.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A folding chair with stable support, characterized in that: The folding chair comprises a folding chair body (1), wherein the folding chair body (1) comprises a support frame (2) and a seat plate (3), wherein the seat plate (3) is connected to the support frame (2) via a rotating rod (4), wherein a mounting seat (5) is fixedly connected to the outer side of the bottom end of the support frame (2), wherein the number of the mounting seats (5) is four, wherein a connecting block (6) is provided inside the mounting seat (5), wherein the connecting block (6) is fixedly connected to a first hinge seat (7), wherein the first hinge seat (7) is hinged to a connecting rod (8), wherein one end of the connecting rod (8) is hinged to a second hinge seat (9), and wherein the second hinge seat (9) is fixedly connected to a bottom plate (10).

2. A folding chair with stable support according to claim 1, characterized in that: Limit blocks (11) are provided on both sides of the connecting block (6), a limit groove (12) is provided inside the mounting seat (5), the limit block (11) matches the limit groove (12), a groove (13) is provided inside the limit block (11), a spring (14) is provided inside the groove (13), one end of the spring (14) is connected to the limit block (11), and the other end is connected to the clamping column (15).

3. A folding chair with stable support according to claim 2, characterized in that: The mounting seat (5) is provided with a card slot (16), and the card column (15) matches the card slot (16).

4. The folding chair with stable support according to claim 1, characterized in that: Two slide grooves (17) are fixed inside the seat plate (3), and a slider (18) is slidably connected inside the slide groove (17). The slider (18) is connected to a placement plate (19). There are two placement plates (19). One end of the placement plate (19) passes through the seat plate (3) and is connected to a pull plate (20). A fixing groove (21) is provided on the seat plate (3), and the fixing groove (21) matches the pull plate (20).

5. A folding chair with stable support according to claim 4, characterized in that: The pull plate (20) is connected to the seat plate (3) via a magnet (22).

6. The folding chair with stable support according to claim 4, characterized in that: The seat plate (3) is provided with a notch (23), and the notch (23) is provided above the pull plate (20).

7. The folding chair with stable support according to claim 1, characterized in that: The material of the seat plate (3) is plastic.