Folding chair structure

Abstract

Disclosed is a folding chair structure, comprising a middle support (1), foot tubes (2), a seating fixing rod (8) and a seating (9), wherein the foot tubes (2) are inserted into the lower end face of the middle support (1) to form a folding chair base, the seating fixing rod (8) is inserted into the upper end face of the middle support (1), and the seating (9) is mounted on the middle support (1) by means of the seating fixing rod (8). Two foot tubes (2) are arranged on the lower end face of the middle support (1), the two foot tubes (2) are arranged on the same side of the middle support (1), and the other side of the middle support (1) is supported on the ground, so that a stable triangular structure is formed between the foot tubes, the middle support and the ground, which can reduce the number of support tubes used.

Description

A folding chair structure

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number 202323123350.0, filed with the Chinese Patent Office on November 20, 2023, and entitled “A Folding Chair Structure,” the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present disclosure belongs to the technical field of chairs, and in particular relates to a folding chair structure. Background Art

[0004] A folding chair is a lightweight chair that can be folded for storage. It is easy to carry and saves space. It was originally used for military purposes. It is now commonly used in various educational institutions, schools at all levels, public places, hospitals, restaurants, hotels, companies, homes and other places to effectively reduce the occupied space.

[0005] The seat fixing rod and leg tubes of the existing folding chair are fixed on the middle bracket. The middle bracket has a quadrilateral structure. At the same time, four leg tubes need to be set at the lower end of the middle bracket. The middle bracket with a quadrilateral structure has poor stability. It is necessary to ensure that the middle bracket has sufficient strength to increase the stability of the folding chair. Summary of the Invention

[0006] The present disclosure provides a folding chair structure, which can improve the stability of the folding chair during use.

[0007] The embodiments of the present disclosure may be implemented as follows:

[0008] A folding chair structure comprises a middle bracket and a leg tube arranged below the middle bracket, wherein the leg tube is arranged on one side of the middle bracket so as to support the middle bracket obliquely to the ground.

[0009] Optionally, the intermediate support includes cross-arranged support tubes, one end of the support tube is connected to the leg tube, and the other end of the support tube is supported on the ground.

[0010] Optionally, the support tube includes a cross-connector, and the support tube is detachably mounted on the cross-connector.

[0011] Optionally, the support tube includes a support unit tube, and the support unit tube is plugged into the cross-connector.

[0012] Optionally, a connecting elastic rope is provided in the cross-connector, and the bracket unit tube and the leg tube are connected to the cross-connector via the connecting elastic rope.

[0013] Optionally, the intermediate support includes support tubes arranged in a quadrilateral.

[0014] Optionally, the intermediate bracket is provided with a leg tube connector and a support member, the leg tube is installed on the intermediate bracket through the leg tube connector, and the support member is configured to support one side of the intermediate bracket.

[0015] Optionally, the end of the support member is provided with a support head that abuts against the ground.

[0016] Optionally, the leg tube connector is provided with a leg tube connecting hole configured to install the leg tube and a seat seat connecting hole, and a seat seat fixing rod is installed in the seat seat connecting hole.

[0017] Optionally, a seat seat rod connecting rope is provided between the seat seat fixing rod and the seat seat connecting hole.

[0018] Optionally, the hinge seat is provided with a hinge groove, and the bracket unit tube is rotatably installed in the hinge groove.

[0019] Optionally, the support tube is a multi-section spliced ​​structure.

[0020] Optionally, the leg tube connecting part includes an intermediate frame connecting part, a leg tube mounting tube and a seat seat mounting tube, the intermediate frame connecting part is inserted into the end of the bracket tube, the leg tube mounting tube and the seat seat mounting tube are respectively connected to both sides of the intermediate frame connecting part, the leg tube mounting tube is connected to the leg tube, and the seat seat mounting tube is connected to a seat seat fixing rod.

[0021] Optionally, the seat surface fixing rod includes a plurality of fixing rod units, and a plug connector is provided at one end portion of each fixing rod unit, and the plug connector is configured to be plugged with an adjacent fixing rod unit.

[0022] Compared with the prior art, the advantages of the embodiments of the present disclosure include, for example:

[0023] (1) By arranging a leg tube on one side of the middle bracket, a stable triangular structure is formed between the leg tube, the middle bracket and the ground, thereby ensuring the stability of the folding chair base formed by the leg tube and the middle bracket, thereby improving the stability of the folding chair structure.

[0024] (2) By setting up the inclined middle bracket, the number of legs used can be reduced, thereby reducing the production cost of the folding chair structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0026] FIG1 is a schematic diagram of a folding chair structure provided in an embodiment of the present disclosure.

[0027] FIG2 is a schematic structural diagram of an embodiment of the present disclosure with the chair seat hidden.

[0028] FIG3 is a schematic structural diagram of a leg tube connector provided in an embodiment of the present disclosure.

[0029] FIG4 is a schematic structural diagram of a support member provided in an embodiment of the present disclosure.

[0030] FIG5 is a schematic diagram of the folding chair structure provided in an embodiment of the present disclosure after folding.

[0031] FIG6 is a schematic diagram of the structure of the embodiment of the present disclosure with the seat surface hidden, and this figure shows a schematic diagram of the middle bracket being a quadrilateral structure.

[0032] FIG7 is a schematic diagram of the structure of the embodiment of the present disclosure with the seat hidden, and the figure shows a schematic diagram of the middle bracket in a triangular structure.

[0033] FIG8 is a schematic structural diagram of an intermediate bracket provided in an embodiment of the present disclosure;

[0034] FIG9 is a schematic diagram of the position of the rotating shaft provided in an embodiment of the present disclosure.

[0035] Figure markings: intermediate bracket 1, slot 1-1, leg tube 2, bracket tube 3, bracket unit tube 3-1, intermediate connector 3-2, cross connector 4, slot 4-1, connecting elastic rope 5, leg tube connector 6, leg tube connecting hole 6-1, seat surface connecting hole 6-2, intermediate frame connecting part 6-3, leg tube mounting tube 6-4, seat surface mounting tube 6-5, support member 7, support head 7-1, support member main body 7-2, seat surface connecting tube 7-3, plug hole 7-4, seat surface fixing rod 8, fixing rod unit 8-1, plug connector 8-2, seat surface 9, hinge seat 10, hinge slot 10-1, rotating shaft 11. DETAILED DESCRIPTION

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, but not all of them. Generally, the components of the embodiments of the present disclosure described and shown in the drawings herein can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present disclosure provided in the accompanying drawings is not intended to limit the scope of the present disclosure as claimed, but merely represents selected embodiments of the present disclosure. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present disclosure without creative effort shall fall within the scope of protection of the present disclosure.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0039] In the description of the present disclosure, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the invented product is usually placed when used. It is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0040] In addition, the terms "first", "second", "third", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0041] Furthermore, the use of terms such as "horizontal," "vertical," and "overhanging" does not necessarily imply that the component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0042] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on the specific circumstances.

[0043] It should be noted that, in the absence of conflict, the features in the embodiments of the present disclosure may be combined with each other.

[0044] The present disclosure is further described below with reference to the accompanying drawings.

[0045] A folding chair structure includes an intermediate bracket 1, a leg tube 2, a seat fixing rod 8 and a seat 9. The leg tube 2 is inserted into the lower end surface of the intermediate bracket 1 to form a folding chair base. The seat fixing rod 8 is inserted into the upper end surface of the intermediate bracket 1. The seat 9 is installed on the intermediate bracket 1 through the seat fixing rod 8.

[0046] Two leg tubes 2 are arranged on the lower end surface of the intermediate bracket 1. The two leg tubes 2 are arranged on the same side of the intermediate bracket 1, and the other side of the intermediate bracket 1 is supported on the ground, so that a stable triangular structure is formed between the leg tubes 2, the intermediate bracket 1 and the ground, ensuring the stability of the folding chair base formed by the leg tubes 2 and the intermediate bracket 1, thereby improving the stability of the folding chair structure in use; and through the arrangement of the inclined intermediate bracket 1 in this embodiment, the number of leg tubes 2 used can be reduced, thereby reducing the production cost of the folding chair structure.

[0047] In this embodiment, the intermediate bracket 1 includes a cross-arranged bracket tube 3, one end of the bracket tube 3 is connected to the leg tube 2, and the other end of the bracket tube 3 is supported on the ground. The cross-arranged bracket tube 3 facilitates the formation of multiple triangular structures between the bracket tubes 3, thereby improving the stability of the intermediate bracket 1.

[0048] In order to facilitate the connection of the bracket tube 3, an intermediate connector 3-2 is installed at the intersection of the intermediate bracket 1, and the bracket tube 3 is transitionally connected through the intermediate connector 3-2. In this embodiment, the intermediate connector 3-2 is a cross connector 4, and the bracket tube 3 is detachably plugged into the cross connector 4. When folding the folding chair, the bracket tube 3 and the cross connector 4 are separated, thereby further reducing the storage space of the intermediate bracket 1.

[0049] The support tube 3 includes a support unit tube 3-1. Four slots 4-1 configured to install the support unit tube 3-1 are provided on the cross connector 4. The support unit tube 3-1 is inserted into the cross connector 4 through the slots 4-1, and every two support unit tubes 3-1 located on the same straight line form a support tube 3.

[0050] In this embodiment, the support tube 3 is divided into multiple sections and connected together, so that the folded volume of the middle support 1 can be further reduced, thereby improving the portability of the folding chair structure.

[0051] A connecting elastic rope 5 is provided in the folding chair structure, and at least one of the leg tube 2, the seat fixing rod 8 and the intermediate bracket 1 is connected with the connecting elastic rope 5, so that the leg tube 2 and / or the seat fixing rod 8 and / or the intermediate bracket 1 are connected through the connecting elastic rope 5. The connecting elastic rope 5 provides a certain guiding effect on the installation of the various components of the folding chair structure, and at the same time facilitates the connection of the various components of the folding chair, thereby further improving the portability of the folding chair structure.

[0052] Specifically, eight connecting elastic ropes 5 are provided in the folding chair structure, two ends of which are respectively connected to the leg tube connector 6 and the support member 7 connected to the end of the bracket unit tube 3-1, two of which are arranged in the leg tube 2 and configured to connect the bottom of the leg tube 2 to the leg tube connector 6, and four of which are arranged in the seat surface fixing rod 8 and configured to connect the top of the seat surface fixing rod 8 to the leg tube connector 6 or the support member 7.

[0053] It is worth noting that the connecting elastic ropes 5 can also be of other numbers, which can connect at least one or at least two of the leg tube 2, the seat fixing rod 8 and the intermediate bracket 1. There is no limitation on the specific number of the connecting elastic ropes 8.

[0054] The intermediate bracket 1 is provided with a leg tube connector 6 and a support member 7, which are respectively arranged at both ends of the bracket tube 3. The leg tube 2 is installed on the intermediate bracket 1 through the leg tube connector 6, and the support member 7 is configured to support one side of the intermediate bracket 1.

[0055] The leg tube connector 6 includes an intermediate frame connecting part 6-3, a leg tube mounting tube 6-4 and a seat surface mounting tube 6-5. The intermediate frame connecting part 6-3 is inserted into the end of the bracket tube 3. The leg tube mounting tube 6-4 and the seat surface mounting tube 6-5 are respectively connected to the two sides of the intermediate frame connecting part 6-3. A leg tube connecting hole 6-1 is provided in the leg tube mounting tube 6-4. The leg tube 2 is connected to the leg tube connector 6 through the leg tube connecting hole 6-1. A seat surface connecting hole 6-2 is provided in the seat surface mounting tube 6-5. The seat surface fixing rod 8 is connected to the leg tube connector 6 through the seat surface connecting hole 6-2. A connecting elastic rope 5 is provided in the seat surface connecting hole 6-2. The connecting elastic rope 5 is connected to the seat surface fixing rod 8, thereby providing a certain guiding effect on the assembly of the seat surface fixing rod 8.

[0056] In this embodiment, in order to further improve the portability of the folding chair structure, the seat fixing rod 8 includes a plurality of fixing rod units 8-1, and a plug connector 8-2 is provided at one end of the fixing rod unit 8-1. The plug connector 8-2 is configured to be plugged into the adjacent fixing rod unit 8-1, and the connecting elastic rope 5 is set through each fixing rod unit 8-1 to provide a certain degree of guidance for the installation of each fixing rod unit 8-1.

[0057] The support member 7 includes a support head 7-1, a support body 7-2 and a seat surface connecting tube 7-3. The support body 7-2 is inserted into the end of the bracket tube 3. The support head 7-1 is fixedly connected to the outer end of the support body 7-2. The support head 7-1 is in contact with the ground. The seat surface connecting tube 7-3 is fixed to one side of the support body 7-2. The seat surface fixing rod 8 is connected to the support member 7 through the seat surface connecting tube 7-3.

[0058] Optionally, the intermediate bracket 1 can include bracket tubes 3 arranged in a triangular or quadrilateral shape. In order to facilitate the bracket tubes 3 to be enclosed into a triangular or quadrilateral structure, two slots 1-1 are provided on the leg tube connector 6 and the support member 7, and adjacent bracket tubes 3 are connected through the leg tube connector 6 or the support member 7.

[0059] In this embodiment, the intermediate frame connecting portion 6-3 is L-shaped, and the support member main body 7-2 is triangular or L-shaped, so as to form an intermediate bracket 1 with a triangular or quadrilateral structure, wherein a plug hole 7-4 is provided on the support member main body 7-2, and the seat surface connecting tube 7-3 in the first embodiment is replaced by the plug hole 7-4, and the seat surface fixing rod 8 is directly fixed on the support member main body 7-2.

[0060] Please refer to Figure 8. Optionally, the intermediate connecting member 3-2 can also be a hinge seat 10, which has four hinge grooves 10-1. The four bracket unit tubes 3-1 are installed in the hinge grooves 10-1 by rotating the pin shaft, and the intermediate bracket 1 is folded by rotating the four bracket unit tubes 3-1.

[0061] In this embodiment, the opening of the hinge groove 10-1 is set downward. When the user sits on the folding chair structure, a downward force is generated on the middle bracket 1, thereby ensuring that the middle bracket 1 and the four bracket unit tubes 3-1 are in an expanded state.

[0062] Optionally, the bracket tube 3 is a longer pipe, and the bracket tubes 3 are arranged crosswise. The intermediate connecting piece 3-2 adopts a rotating shaft 11, and the rotating shaft 11 is arranged at the intersection of the bracket tubes 3. The two bracket tubes 3 are directly connected by the rotating shaft 11. When folded, the bracket tube 3 rotates with the rotating shaft 11 as the rotation center until the bracket tubes 3 are spliced ​​together.

[0063] Specifically, referring to FIG. 9 , the two support unit tubes 3 - 1 may be staggered, and a rotation shaft 11 may be provided at the intersection of the two support unit tubes 3 - 1 , so that the rotational cooperation of the two support unit tubes 3 - 1 can be achieved through the rotation shaft 11 .

[0064] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present disclosure. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments shown herein, but is to be construed in the widest possible manner consistent with the principles and novel features disclosed herein.

[0065] Although this article uses more terms corresponding to the figure marks in the figures, it does not exclude the possibility of using other terms; these terms are used only to more conveniently describe and explain the essence of the present disclosure; interpreting them as any additional restrictions is contrary to the spirit of the present disclosure. Industrial Applicability

[0066] A folding chair structure is provided with a leg tube on one side of an intermediate support, so that a stable triangular structure is formed between the leg tube, the intermediate support and the ground, thereby ensuring the stability of the folding chair base formed by the leg tube and the intermediate support, thereby improving the use stability of the folding chair structure; and by providing an oblique intermediate support, the number of leg tubes used can be reduced, thereby reducing the production cost of the folding chair structure.

Claims

1. A folding chair structure, comprising an intermediate support (1) and a leg tube (2) arranged below the intermediate support (1), characterized in that: The leg tube (2) is arranged on one side of the middle bracket (1) so that the middle bracket (1) is supported obliquely to the ground.

2. A folding chair structure according to claim 1, characterized in that: The intermediate support (1) comprises support tubes (3) arranged crosswise, one end of the support tube (3) is connected to the leg tube (2), and the other end of the support tube (3) is supported on the ground.

3. A folding chair structure according to claim 2, characterized in that: The support tube (3) comprises an intermediate connecting piece (3-2) and at least two support unit tubes (3-1), and the intermediate connecting piece (3-2) is connected to the at least two support unit tubes (3-1).

4. A folding chair structure according to claim 3, characterized in that: The intermediate connecting piece (3-2) is a cross connecting piece (4), and the bracket unit tube (3-1) is detachably plugged into the cross connecting piece (4).

5. The folding chair structure according to claim 3, characterized in that: The two support unit tubes (3-1) are hinged via a rotating shaft (11) or a hinge seat (10).

6. A folding chair structure according to claim 5, characterized in that: The hinge seat (10) is provided with a hinge groove (10-1), and the bracket unit pipe (3-1) is rotatably installed in the hinge groove (10-1).

7. The folding chair structure according to claim 1, characterized in that: The folding chair structure also includes a seat surface fixing rod (8) and a connecting elastic rope (5), and at least one of the leg tube (2), the seat surface fixing rod (8) and the intermediate bracket (1) is connected to the connecting elastic rope (5), so that the leg tube (2) and / or the seat surface fixing rod (8) and / or the intermediate bracket (1) are connected via the connecting elastic rope (5).

8. The folding chair structure according to claim 1, characterized in that: The intermediate support (1) comprises support tubes (3) arranged in a quadrilateral or a triangle.

9. A folding chair structure according to claim 8, characterized in that: The support tube (3) is a multi-section spliced ​​structure.

10. The folding chair structure according to claim 1, characterized in that: The intermediate support (1) is provided with a leg tube connector (6) and a support member (7); the leg tube (2) is mounted on the intermediate support (1) via the leg tube connector (6); and the support member (7) is configured to support one side of the intermediate support (1).

11. A folding chair structure according to claim 10, characterized in that: The support member (7) comprises a support member body (7-2) and a seat surface connection tube (7-3) connected to the support member body (7-2); a support head (7-1) abutting against the ground is provided at the end of the support member (7); and a seat surface fixing rod (8) is installed in the seat surface connection tube (7-3).

12. The folding chair structure according to claim 10, characterized in that: The leg tube connecting member (6) is provided with a leg tube connecting hole (6-1) and a seat surface connecting hole (6-2); the leg tube connecting hole (6-1) is configured to install the leg tube (2); and a seat surface fixing rod (8) is installed in the seat surface connecting hole (6-2).

13. The folding chair structure according to claim 10, characterized in that: The leg tube connecting member (6) comprises an intermediate frame connecting portion (6-3), a leg tube mounting tube (6-4) and a seat surface mounting tube (6-5); the intermediate frame connecting portion (63) is plugged into the end of the bracket tube (3); the leg tube mounting tube (6-4) and the seat surface mounting tube (6-5) are respectively connected to the two sides of the intermediate frame connecting portion (6-3); the leg tube mounting tube (6-4) is connected to the leg tube (2); and the seat surface mounting tube (6-5) is connected to a seat surface fixing rod (8).

14. A folding chair structure according to claim 12 or 13, characterized in that: The seat surface fixing rod (8) comprises a plurality of fixing rod units (8-1), one end of each fixing rod unit (8-1) is provided with a plug connector (8-2), and the plug connector (8-2) is configured to be plugged with an adjacent fixing rod unit (8-1).

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