Center gathering type folding structure and folding chair

Abstract

The utility model provides a center gathering type folding structure and a folding chair, the center gathering type folding structure comprises a center turntable and a plurality of supporting rods, the center turntable is provided with a plurality of limiting inclined holes with the same number as the supporting rods, and the plurality of supporting rods penetrate through the corresponding limiting inclined holes and are hinged with the center turntable; the supporting rods can be switched between the vertical position and the rotating position through the limiting inclined holes, and the supporting rods are perpendicular to the center rotating disc in the vertical position. In the rotating position, the multiple supporting rods abut against the inner walls of the limiting inclined holes and are limited, and the supporting rods are symmetrically distributed about the center of the center axis of the center rotating disc. One end of each sleeve telescopic piece is hinged to the bottom end of one supporting rod, the other end of each sleeve telescopic piece is hinged to the top end of the adjacent supporting rod, and the sleeve telescopic pieces are symmetrically distributed about the center of the center axis of the center rotating disc; the folding chair solves the problem that a folding chair in the prior art cannot give consideration to folding convenience, small storage space and unfolding stability.

Description

Technical Field

[0001] The utility model relates to the technical field of folding furniture, in particular to a center-gathering folding structure and a folding chair. Background Art

[0002] With the accelerated pace of modern life and the increasingly tight living space, people have put forward higher requirements for the flexibility and space utilization efficiency of furniture. Folding structure design is becoming more and more popular in the market and favored by designers because of its advantages such as space saving, easy to carry and store.

[0003] Traditional furniture design often focuses on stability and durability, but with the renewal of design concepts and the advancement of material science, modern furniture design begins to consider more about the versatility and adaptability of furniture. Folding structure design is born in this context. Through clever structural design, it enables furniture to be folded up when not in use, greatly reducing the space occupied.

[0004] In the existing folding structure design, most folding furniture such as chairs and tables usually use simple hinge connections or telescopic rod mechanisms to achieve the folding and unfolding functions. Although these designs meet the needs of space saving to a certain extent, they often have shortcomings in terms of structural stability, load-bearing capacity and ease of use.

[0005] For example, some folding chairs use a simple cross-shaped or I-shaped frame structure, with each supporting leg connected by a hinge to achieve folding. However, this design often has poor stability when fully unfolded, and occupies a large space in the folded state, which is not conducive to carrying and storage. In addition, although some telescopic rod folding structures can save space well, their telescopic mechanism is often more complicated, and the structure is prone to deformation or damage when carrying heavy objects. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a center-gathering folding structure and a folding chair, so as to solve the problem that the folding chair in the prior art cannot take into account the folding convenience, small storage space and unfolding stability.

[0007] In order to solve the above technical problems, the utility model provides a center-gathering folding structure, comprising:

[0008] A central turntable and a plurality of struts, wherein the central turntable is provided with a plurality of limiting inclined holes which are the same in number as the struts, and the plurality of struts pass through the corresponding limiting inclined holes and are hinged to the central turntable, and the limiting inclined holes satisfy the switching of the struts between the vertical position and the rotational position. In the vertical position, the plurality of struts are perpendicular to the central turntable; in the rotational position, the plurality of struts abut against the inner walls of the limiting inclined holes and are limited, and are symmetrically distributed about the central axis of the central turntable;

[0009] A plurality of telescopic sleeve parts, one end of which is hinged to the bottom end of a support rod, and the other end is hinged to the top end of another adjacent support rod, and the plurality of telescopic sleeve parts are symmetrically distributed about the central axis of the central rotating disk;

[0010] When the center-gathering folding structure is unfolded, the support rod is in a rotated position, the telescopic sleeve part is contracted, and can bear the load from the vertical direction; when the center-gathering folding structure is folded, the support rod is in a vertical position, and the telescopic sleeve part is extended for easy storage.

[0011] As a more preferred embodiment, the telescopic sleeve member includes a telescopic sleeve, and the center-gathering folding structure also includes a plurality of foot pads and connecting members, the two ends of the support rod are respectively hinged to the foot pads and the connecting members, and the two ends of the telescopic sleeve are respectively connected to the corresponding foot pads and the connecting members.

[0012] As a more preferred embodiment, the telescopic sleeve comprises an inner tube and an outer tube, one end of the outer tube is slidably sleeved on one end of the inner tube, and the contraction and extension of the telescopic sleeve are achieved by sliding between the inner tube and the outer tube.

[0013] As a more preferred manner, the outer tube is longer than the inner tube. When the center-gathering folding structure is unfolded, the inner tube can be completely retracted in the outer tube, and the outer tube can better bear the load.

[0014] As a more preferred method, the center gathering type folding structure includes four support rods and four telescopic sleeve parts. The center turntable is provided with four corresponding limiting inclined holes. When the center gathering type folding structure is unfolded, the four telescopic sleeve parts are arranged vertically, which can better bear the load in the vertical direction.

[0015] As a more preferred manner, two ends of the telescopic sleeve are fixedly connected to the foot pad and the connecting piece respectively.

[0016] As a more preferred method, the center gathering type folding structure includes four support rods and two telescopic sleeve parts. The center turntable is provided with four corresponding limiting inclined holes. When the center gathering type folding structure is unfolded, the two telescopic sleeve parts are arranged vertically, which can better bear the load in the vertical direction.

[0017] As a more preferred embodiment, the center gathering folding structure includes three support rods and three telescopic sleeve parts. Three corresponding limiting inclined holes are arranged on the center turntable. When the center gathering folding structure is unfolded, the three telescopic sleeve parts are symmetrically arranged at a certain angle around the central axis of the center turntable, which is simpler in structure.

[0018] As a more preferred manner, both ends of the telescopic sleeve are respectively hinged to the foot pad and the connecting piece to solve the problem of a certain angle deflection between the telescopic sleeve and the foot pad and the connecting piece during the unfolding and folding process.

[0019] In order to solve the above problems, the utility model also provides a center-gathering folding chair, comprising:

[0020] The above-mentioned center-gathering folding structure;

[0021] A flexible bearing seat cushion is respectively connected to the top ends of the plurality of support rods. When the center gathering type folding structure is unfolded, the flexible bearing seat cushion is spread out by the support rods to meet the needs of riding; when the center gathering type folding structure is folded, the flexible bearing seat cushion is folded to meet the needs of storage.

[0022] As a more preferred embodiment, the center-gathering folding chair also includes a backrest, which includes two back support rods and a flexible load-bearing backrest mounted on the two back support rods. When the center-gathering folding structure is unfolded, the back support rods are arranged on the center-gathering folding structure to ensure that the user's back can be supported when sitting; when the center-gathering folding structure is folded, the back support rods are removed and stored side by side with the center-gathering folding structure.

[0023] As described above, the center gathering type folding structure and the folding chair of the utility model have the following beneficial effects: when the center gathering type folding structure is in use, the support rod is rotated to a vertical position, the center gathering type folding structure is folded, and the telescopic sleeve part is extended. In this state, the center gathering type folding structure is more convenient to store; when the support rod is rotated to a rotation position, the center gathering type folding structure is unfolded, and the telescopic sleeve part is retracted. In this state, the center gathering type folding structure is more convenient to bear loads, has a stable structure, and is very suitable as a support for furniture such as chairs or tables;

[0024] When the center-gathering folding chair of the utility model is in use, the center-gathering folding structure is unfolded, the flexible bearing seat cushion is propped up by the support rod, and the user can sit on the flexible bearing seat cushion; when the center-gathering folding chair of the utility model is stored, the center-gathering folding structure is folded, and the flexible bearing seat cushion is also folded therein, so as to meet the storage requirements, and the folded structures are tightly together, which is very compact and requires very little storage space; at the same time, since the entire unfolding and storing process does not require the addition or reduction of any connecting components, and is completely obtained by deforming the existing connecting structure, it has great convenience; further, when the center-gathering folding chair is carrying a load in the vertical direction, a complete support rod is used to provide support, instead of the existing folding structure using folded and assembled rods for support, so that its bearing capacity is greatly improved;

[0025] To sum up, the center-gathering folding structure and folding chair of the utility model achieve the advantages of structural stability, small storage space and convenient folding through their stable structure after unfolding, compact spatial layout after folding and storage, and deformation process without adding or reducing connecting components. It solves the problem that folding chairs in the prior art cannot take into account the convenience of folding, small storage space and unfolding stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It shows an exploded schematic diagram of the center-gathering folding structure of the present invention and the folding chair when it is unfolded;

[0027] Figure 2 It is a schematic diagram showing the structure of the central turntable of the central gathering folding structure of the utility model;

[0028] Figure 3 It shows the center gathering folding structure of the utility model and the schematic diagram of the structure when the folding chair is stored;

[0029] Figure 4 It shows another embodiment of the center-gathering folding structure of the present invention.

[0030] Component number description

[0031] 1 Center turntable

[0032] 11 Limiting inclined hole

[0033] 2 poles

[0034] 3 Telescopic sleeve

[0035] 31 Telescopic sleeve

[0036] 311 Inner tube

[0037] 312 outer tube

[0038] 4 Foot pads

[0039] 41 Anti-slip structure

[0040] 5 Connectors

[0041] 51 Insertion slot

[0042] 6 Back support rod DETAILED DESCRIPTION

[0043] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0044] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in this utility model, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that can be produced by the utility model and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the utility model. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is limited only by the claims of the published patents. The terms used here are only for describing specific embodiments and are not intended to limit this application. Spatial related terms, such as "upper", "lower", "left", "right", "below", "below", "lower", "above", "upper", etc., can be used in the text to facilitate the description of the relationship between an element or feature shown in the figure and another element or feature.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "hold" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless there is an indication to the contrary in the context. It should be further understood that the terms "comprise", "include" indicate the presence of the described features, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence or addition of one or more other features, operations, elements, components, items, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Exceptions to this definition will only occur when the combination of elements, functions or operations is inherently mutually exclusive in some way.

[0047] like Figure 1 as well as Figure 3 As shown, the utility model provides a center-gathering folding structure, comprising:

[0048] A central turntable 1 and a plurality of struts 2, wherein the central turntable 1 is provided with a plurality of limiting inclined holes 11 which are the same in number as the struts 2, and the plurality of struts 2 pass through the corresponding limiting inclined holes 11 and are hinged to the central turntable 1, and the limiting inclined holes 11 satisfy the switching of the struts 2 between the vertical position and the rotational position. In the vertical position, the plurality of struts 2 are perpendicular to the central turntable 1; in the rotational position, the plurality of struts 2 abut against the inner walls of the limiting inclined holes 11 and are limited, and are symmetrically distributed about the central axis of the central turntable 1;

[0049] A plurality of telescopic sleeve members 3, one end of each telescopic sleeve member 3 is hinged to the bottom end of a support rod 2, and the other end is hinged to the top end of another adjacent support rod 2, and the plurality of telescopic sleeve members 3 are symmetrically distributed about the central axis of the central turntable 1;

[0050] When the center-gathering folding structure is unfolded, the support rod 2 is in a rotated position, the telescopic sleeve part 3 is contracted, and can bear the load from the vertical direction; when the center-gathering folding structure is folded, the support rod 2 is in a vertical position, and the telescopic sleeve part 3 is extended for easy storage.

[0051] In order to better introduce the center-gathering folding structure of the utility model, it is now explained in combination with the following specific applications: when the center-gathering folding structure is in use, the support rod 2 is rotated to a vertical position, the center-gathering folding structure is folded, and the telescopic sleeve part 3 is extended. In this state, the center-gathering folding structure is more convenient to store; the support rod 2 is rotated to a rotation position, the center-gathering folding structure is unfolded, and the telescopic sleeve part 3 is contracted. In this state, the center-gathering folding structure is more convenient to bear loads, has a stable structure, and is very suitable as a support for furniture such as chairs or tables.

[0052] In this embodiment, if Figure 1 As shown, the telescopic sleeve member 3 includes a telescopic sleeve 31, and the central gathering folding structure also includes a plurality of foot pads 4 and connecting members 5. The two ends of the support rod 2 are respectively hinged to the foot pads 4 and the connecting members 5, and the two ends of the telescopic sleeve 31 are respectively connected to the corresponding foot pads 4 and the connecting members 5.

[0053] In this embodiment, if Figure 1 as well as Figure 3 As shown, the telescopic sleeve 31 includes an inner tube 311 and an outer tube 312 , one end of the outer tube 312 is slidably mounted on one end of the inner tube 311 , and the contraction and extension of the telescopic sleeve 3 are achieved by sliding between the inner tube 311 and the outer tube 312 .

[0054] In this embodiment, if Figure 1 as well as Figure 3 As shown, the outer tube 312 is longer than the inner tube 311. When the center-gathering folding structure is unfolded, the inner tube 311 can be completely retracted in the outer tube 312, and the outer tube 312 can better bear the load.

[0055] In this embodiment, if Figure 1 As shown, the center gathering type folding structure includes four support rods 2 and four telescopic sleeve parts 3. The center turntable 1 is provided with four corresponding limiting inclined holes 11. When the center gathering type folding structure is unfolded, the four telescopic sleeve parts 3 are arranged vertically, which can better bear the load in the vertical direction. Further, in this embodiment, as Figure 1As shown, the two ends of the telescopic sleeve 31 are fixedly connected to the foot pad 4 and the connecting piece 5 respectively; more specifically, the outer tubes 312 of two of the telescopic sleeves 31 are fixedly connected to the foot pad 4, and the inner tubes 311 are connected to the connecting piece 5, and the outer tubes 312 of the other two telescopic sleeves 31 are fixedly connected to the connecting piece 5, and the inner tubes 311 are connected to the foot pad 4. Because the diameter of the outer tube 312 is larger than that of the inner tube 311, when the same end of the outer tube 312 is connected to the connecting piece 5 or the foot pad 4, when the central gathering type folding structure is stored, the outer tubes 312 with larger diameters are stored together, which increases the integrated Volume, and now this symmetrical layout results in that each end of the storage structure includes two outer tubes 312 and two inner tubes 311, which further saves storage space; as another embodiment, the central gathering type folding structure can also include four struts 2 and two telescopic sleeve parts 3, and the central turntable 1 is provided with four corresponding limiting inclined holes 11. When the central gathering type folding structure is unfolded, the two telescopic sleeve parts 3 are arranged vertically, which can better bear the load in the vertical direction. More specifically, when the strut 2 is in the rotation position, the two telescopic sleeve parts 3 are arranged vertically on one side of the strut 2, see Figure 4 .

[0056] Similarly, as another embodiment, the center gathering type folding structure can also include three support rods 2 and three telescopic sleeve parts 3. The center turntable 1 is provided with three corresponding limiting inclined holes 11. When the center gathering type folding structure is unfolded, the three telescopic sleeve parts 3 are symmetrically arranged at a certain angle around the central axis of the center turntable 1, and the structure is simpler; the two ends of the telescopic sleeve 31 are respectively hinged to the foot pad 4 and the connecting part 5 to meet the problem that a certain angle deflection will occur between the telescopic sleeve 31 and the foot pad 4 and the connecting part 5 during the unfolding and storage process.

[0057] In order to solve the above problems, Figure 1 as well as Figure 3 As shown, the utility model also provides a center-gathering folding chair, comprising:

[0058] The above-mentioned center-gathering folding structure;

[0059] A flexible load-bearing seat cushion is respectively connected to the top ends of the plurality of support rods 2. When the center-gathering folding structure is unfolded, the flexible load-bearing seat cushion is opened by the support rods 2 to meet the needs of riding; when the center-gathering folding structure is folded, the flexible load-bearing seat cushion is folded to meet the storage needs.

[0060] In order to better introduce the center-gathering folding chair of the utility model, it is now explained in combination with the following specific applications: when the center-gathering folding chair of the utility model is in use, the center-gathering folding structure is unfolded, the flexible load-bearing seat cushion is propped open by the support rod 2, and the user can sit on the flexible load-bearing seat cushion; when the center-gathering folding chair of the utility model is stored, the center-gathering folding structure is folded, and the flexible load-bearing seat cushion is also folded inside it, meeting the storage requirements, and the folded structures are tightly together, which is very compact, and the space required for storage is very small; at the same time, due to the entire unfolding and storage process, there is no need to add or reduce any connecting components, and the center-gathering folding structure is completely stored. It is obtained by deforming the existing connecting structure and has great convenience; further, when the center-gathering folding chair bears a load in the vertical direction, a complete support rod 2 is used to provide support, instead of the existing folding structure using folded and assembled rods for support, and its bearing capacity is greatly improved; it can be seen that the center-gathering folding structure and folding chair of the utility model, through its stable structure after unfolding, compact space layout after folding and storage, and deformation process without adding or reducing connecting components, achieve the advantages of structural stability, small storage space and convenient folding, etc., and solve the problem that the folding chair in the prior art cannot take into account the convenience of folding, small storage space and unfolding stability.

[0061] In this embodiment, the center-gathering folding chair of this embodiment is placed on the ground, the foot pad 4 is in contact with the ground, and an anti-slip structure 41 is also provided at the bottom of the foot pad 4; further, the flexible load-bearing seat cushion is connected to the corresponding connecting member 5 to achieve connection with the center-gathering folding structure.

[0062] In this embodiment, if Figure 1 As shown, the center-gathering folding chair also includes a backrest, which includes two back support rods 6 and a flexible load-bearing backrest mounted on the two back support rods 6. When the center-gathering folding structure is unfolded, the back support rods 6 are arranged on the center-gathering folding structure to meet the needs of the user's back being supported when sitting; when the center-gathering folding structure is folded, the back support rods 6 are removed and stored side by side with the center-gathering folding structure.

[0063] Furthermore, in this embodiment, if Figure 1 As shown, a pipe insertion groove 51 adapted to the back support rod 6 is reserved at the top of the connecting member 5 of the center-gathering folding structure, and the backrest can be conveniently installed by inserting the back support rod 6 into the pipe insertion groove 51.

[0064] Furthermore, in this embodiment, the flexible load-bearing seat cushion and the flexible load-bearing backrest can be made of wear-resistant canvas or Oxford cloth to further improve the texture and service life.

[0065] In summary, the center-gathering folding structure and folding chair of the present invention have the following advantages:

[0066] 1. Structural stability: The support rod 2 is hinged to the central turntable 1 through the limiting inclined hole 11, and can be switched between a vertical position and a rotational position, thereby ensuring the stability of the structure when in use.

[0067] 2. Space saving: The design of the support rod 2 and the telescopic sleeve member 3 makes the folding structure compact in size when stored, which is convenient for storage and carrying.

[0068] 3. Easy to operate: The rotation of the support rod 2 and the telescopic movement of the telescopic sleeve 3 are simple and intuitive, and the user can easily perform folding and unfolding operations.

[0069] 4. Strong load-bearing capacity: The design that the outer tube 312 is longer than the inner tube 311 enables the structure to better bear the load when unfolded, and is suitable for furniture such as chairs or tables.

[0070] 5. Symmetrical layout: The symmetrical layout of the telescopic sleeve member 3 is not only beautiful, but also helps to save storage space and improve space utilization efficiency.

[0071] 6. Strong adaptability: The structural design can adapt to different numbers of struts 2, such as three or four, providing flexible design solutions to meet different application requirements.

[0072] 7. Integrated design: The entire folding and unfolding process does not require the addition or reduction of any connecting components, and is achieved through the deformation of the existing structure, which improves the convenience of use.

[0073] 8. Versatility: Combined with the load-bearing structure, this structure can not only be used as a chair, but can also be adjusted to other furniture such as tables as needed, increasing the use scenarios of the product.

[0074] 9. Comfort and support: The backrest design provides additional comfort and support, enhancing the user experience.

[0075] 10. Easy to install and disassemble: The installation of the backrest is achieved through the insertion groove 51, which simplifies the installation process and allows users to assemble and disassemble quickly and easily.

[0076] 11. Anti-slip design: The anti-slip structure 41 at the bottom of the foot pad 4 ensures the stability and safety of the furniture during use.

[0077] 12. Compact storage: The folded structure is compact and occupies little space, making it convenient for users to store it when not in use.

[0078] Therefore, the utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0079] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A center-gathering folding structure, characterized in that: include: A central turntable (1) and a plurality of support rods (2), wherein the central turntable (1) is provided with a plurality of limiting inclined holes (11), and the plurality of support rods (2) pass through corresponding limiting inclined holes (11) and are hinged to the central turntable (1), and the limiting inclined holes (11) satisfy the switching of the support rods (2) between a vertical position and a rotational position. In the vertical position, the plurality of support rods (2) are perpendicular to the central turntable (1); in the rotational position, the plurality of support rods (2) abut against the inner walls of the limiting inclined holes (11) and are limited, and are distributed along the center of the central axis of the central turntable (1); A plurality of telescopic sleeve parts (3), one end of the telescopic sleeve parts (3) being hinged to the bottom end of a support rod (2), and the other end being hinged to the top end of another adjacent support rod (2), and the plurality of telescopic sleeve parts (3) being distributed along the center of the central axis of the central rotating disk (1); When the center-gathering folding structure is unfolded, the support rod (2) is in a rotational position, the telescopic sleeve member (3) is contracted, and can bear the load from the vertical direction; when the center-gathering folding structure is folded, the support rod (2) is in a vertical position, and the telescopic sleeve member (3) is extended, so as to facilitate storage.

2. The center-gathering folding structure according to claim 1, characterized in that: The number of the limiting inclined holes is the same as that of the support rod (2).

3. The center-gathering folding structure according to claim 1, characterized in that: The plurality of support rods (2) are symmetrically distributed about the central axis of the central turntable (1).

4. The center-gathering folding structure according to claim 1, characterized in that: The telescopic sleeve member (3) comprises a telescopic sleeve (31), and the central gathering type folding structure further comprises a plurality of foot pads (4) and a connecting member (5), the two ends of the support rod (2) are respectively hinged to the foot pad (4) and the connecting member (5), and the two ends of the telescopic sleeve (31) are respectively connected to the corresponding foot pad (4) and the connecting member (5).

5. The center-gathering folding structure according to claim 4, characterized in that: The telescopic sleeve (31) comprises an inner tube (311) and an outer tube (312); one end of the outer tube (312) is slidably sleeved on one end of the inner tube (311); and the contraction and extension of the telescopic sleeve member (3) are achieved through sliding between the inner tube (311) and the outer tube (312).

6. The center-gathering folding structure according to claim 4, characterized in that: The center-gathering folding structure comprises four support rods (2) and four telescopic sleeve parts (3), and the center turntable (1) is provided with four corresponding limiting inclined holes (11). When the center-gathering folding structure is unfolded, the four telescopic sleeve parts (3) are arranged vertically, so as to better bear the load in the vertical direction.

7. The center-gathering folding structure according to claim 4, characterized in that: The center-gathering folding structure comprises four support rods (2) and two telescopic sleeve parts (3). The center turntable (1) is provided with four corresponding inclined limiting holes (11). When the center-gathering folding structure is unfolded, the two telescopic sleeve parts (3) are arranged vertically, so as to better bear the load in the vertical direction.

8. The center-gathering folding structure according to claim 4, characterized in that: The center-gathering folding structure comprises three support rods (2) and three telescopic sleeve parts (3). The center turntable (1) is provided with three corresponding limiting inclined holes (11). When the center-gathering folding structure is unfolded, the three telescopic sleeve parts (3) are symmetrically arranged at a certain angle around the central axis of the center turntable (1), which makes the structure simpler.

9. A center-gathering folding chair, characterized in that: include: The center-gathering folding structure according to any one of claims 1 to 8; A flexible bearing seat cushion is respectively connected to the top ends of the plurality of support rods (2); when the center gathering type folding structure is unfolded, the flexible bearing seat cushion is spread open by the support rods (2) to meet the needs of riding; when the center gathering type folding structure is folded, the flexible bearing seat cushion is folded to meet the needs of storage.

10. The center-gathering folding chair according to claim 9, characterized in that: The center-gathering folding chair also includes a backrest, which includes two back support rods (6) and a flexible load-bearing backrest sleeved on the two back support rods (6). When the center-gathering folding structure is unfolded, the back support rods (6) are arranged on the center-gathering folding structure to support the back of the user when sitting; when the center-gathering folding structure is folded, the back support rods (6) are removed and stored side by side with the center-gathering folding structure.

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