Folding framework and folding chair

Abstract

The utility model discloses a folding framework and a folding chair, the folding framework comprises a first piece, a second piece and a third piece, the first piece comprises a first hinging part and two first overlapping parts, and the two first overlapping parts are respectively connected with two ends of the first hinging part; the second piece comprises a second hinging part and two second overlapping parts, and the two second overlapping parts are connected with the two ends of the second hinging part respectively; the first hinge part and the second hinge part are hinged, the hinge axis extends in the second direction, the first overlapping part and the second overlapping part are located on the two sides of the first hinge part in the third direction, and the first direction, the second direction and the third direction are perpendicular in pairs; the included angle between the connecting line of the two ends of the first hinge part and the connecting line of the two ends of the second hinge part is a first included angle, the included angle between the first overlapping part and the second overlapping part which are located on the same side of the hinge axis in the first direction is a second included angle, and the first included angle is larger than the second included angle. According to the folding framework disclosed by the embodiment of the utility model, the required storage space is reduced, and the utilization rate of the space is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of folding chairs, and more specifically, to a folding frame and a folding chair. Background Art

[0002] In the related art, the structural design of the folding chair is unreasonable, resulting in a large storage space required for the folding chair and low space utilization. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a folding frame, the folding frame has a small storage space and a high utilization rate of the space.

[0004] According to the folding skeleton of the embodiment of the utility model, it includes: a first piece, the first piece includes a first hinge part and two first overlapping parts, the two first overlapping parts are arranged on both sides of the first hinge part along the first direction and are respectively connected to the two ends of the first hinge part; a second piece, the second piece includes a second hinge part and two second overlapping parts, the two second overlapping parts are arranged on both sides of the second hinge part along the first direction and are respectively connected to the two ends of the second hinge part; the first hinge part and the second hinge part are hinged, the hinge axis between the first hinge part and the second hinge part extends along the second direction, the first overlapping part and the second overlapping part located on the same side of the hinge axis along the first direction are located on both sides of the first hinge part along the third direction, and the first direction, the second direction and the third direction are perpendicular to each other; the angle between the connecting line of the two ends of the first hinge part and the connecting line of the two ends of the second hinge part is the first angle, the angle between the first overlapping part and the second overlapping part located on the same side of the hinge axis along the first direction is the second angle, and the first angle is greater than the second angle.

[0005] According to the folding frame of the embodiment of the utility model, the first angle is greater than the second angle, which is conducive to folding the first overlapping part and the second overlapping part more tightly together, reducing the storage space required for the first overlapping part and the second overlapping part in the folded state, and improving the utilization rate of the space.

[0006] In addition, the folding frame according to the above embodiment of the utility model may also have the following additional technical features:

[0007] According to some embodiments of the present invention, the connecting line at both ends of the first hinged part and the first overlapping part are arranged at a first set angle, the connecting line at both ends of the second hinged part and the second overlapping part are arranged at a second set angle, and the first set angle and the second set angle are both greater than 90°.

[0008] According to some embodiments of the utility model, the folding skeleton includes a folding state and an unfolding state, the first piece and the second piece can rotate relative to each other so that the folding skeleton can switch between the folding state and the unfolding state; in the folding state, the first overlapping portion and the second overlapping portion are parallel to each other.

[0009] According to some embodiments of the present invention, in the folded state, the opposite sides of the first overlapping portion and the second overlapping portion located on the same side of the hinge axis in the first direction are parallel to each other; and / or, in the folded state, the opposite sides of the first overlapping portion and the second overlapping portion located on the same side of the hinge axis in the first direction are parallel to each other.

[0010] According to some embodiments of the present invention, in the folded state, surfaces of the first overlapping portion and the second overlapping portion that are located on the same side of the hinge axis in the third direction and are facing away from the hinge axis are coplanar.

[0011] According to some embodiments of the present invention, projections of the first overlapping portion and the second overlapping portion in the third direction at least partially overlap.

[0012] According to some embodiments of the utility model, the first hinged portion is located on a side of the second hinged portion close to the middle of the first piece, wherein the first overlapping portion includes a first part and a second part, the first part includes a first end and a second end, the first end is connected to the first hinged portion, the second end is connected to the second part, and the second end is arranged on a side of the first end away from the middle of the first piece so that the second part and the projection of the second overlapping portion in the third direction at least partially overlap; and / or, the second overlapping portion includes a connected third part and a fourth part, the third part includes a third end and a fourth end, the third end is connected to the second hinged portion, the second end is connected to the fourth part, and the fourth end is arranged on a side of the third end away from the middle of the first piece so that the fourth part and the projection of the first overlapping portion in the third direction at least partially overlap.

[0013] According to some embodiments of the utility model, the folding skeleton includes a folded state and an unfolded state. In the folded state, the side surfaces of the first overlapping portion and the second overlapping portion located on the same side in the second direction are coplanar; and / or, in the folded state, the side surfaces of the first overlapping portion and the second overlapping portion located on the same side in the first direction are coplanar.

[0014] According to some embodiments of the utility model, the first overlapping portion includes a first rod and a second rod, both ends of the first rod are respectively connected to one end of the two second rods, and the other end of the second rod is connected to the first hinged portion; the second overlapping portion includes a third rod and a fourth rod, both ends of the third rod are respectively connected to one end of the two fourth rods, and the other end of the second rod is connected to the second hinged portion; the first member and the second member are both annular frames.

[0015] The folding chair according to the embodiment of the utility model comprises a seat belt and a folding frame according to the embodiment of the utility model, wherein the seat belt is connected between the first piece and the second piece.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 is a schematic structural diagram of a folding chair according to an embodiment of the utility model, wherein the folding chair is in an unfolded state;

[0019] Figure 2 yes Figure 1 Side view of

[0020] Figure 3 A schematic structural diagram of a folding chair according to an embodiment of the utility model, wherein the folding chair is in a folded state;

[0021] Figure 4 yes Figure 3 Side view of

[0022] Figure 5 yes Figure 1 The middle circle shows a partial enlarged view of point A.

[0023] Reference numerals:

[0024] Folding frame 100; seat belt 200; table portion 300; folding chair 400;

[0025] first member 10; first hinged portion 11; first overlapping portion 12; first portion 121; first end 122; second end 123; second portion 124; first rod 125; second rod 126;

[0026] The second member 20; the second hinged portion 21; the second overlapping portion 22; the third rod 225; the fourth rod 226; the hinge axis F1. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "length", "up", "down", "front", "back", "left", "right", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] The folding frame 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0030] Reference Figure 1-Figure 5 As shown, the folding frame 100 according to the embodiment of the present invention may include a first piece 10 and a second piece 20, and the folding frame 100 may be used for a folding chair, a folding table, etc. Figure 1-Figure 5 As shown, the folding chair 400 according to the embodiment of the present invention may include a seat belt 200 and a folding frame 100 according to the embodiment of the present invention, wherein the seat belt 200 is connected between the first piece 10 and the second piece 20 .

[0031] Specifically, the first member 10 includes a first hinged portion 11 and two first overlapping portions 12, the two first overlapping portions 12 are arranged on both sides of the first hinged portion 11 along the first direction and are respectively connected to both ends of the first hinged portion 11. The second member 20 includes a second hinged portion 21 and two second overlapping portions 22, the two second overlapping portions 22 are arranged on both sides of the second hinged portion 21 along the first direction and are respectively connected to both ends of the second hinged portion 21.

[0032] The first hinged portion 11 and the second hinged portion 21 are hinged, and a hinge axis F1 between the first hinged portion 11 and the second hinged portion 21 extends along the second direction. The first overlapping portion 12 and the second overlapping portion 22 located on the same side of the hinge axis F1 along the first direction are located on both sides of the first hinged portion 11 along the third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

[0033] The angle between the two end lines of the first hinge part 11 and the two end lines of the second hinge part 21 is the first angle a, and the angle between the first overlapping part 12 and the second overlapping part 22 located on the same side of the hinge axis F1 along the first direction is the second angle b. The first angle a is greater than the second angle b.

[0034] The connection between the seat belt 200 and the first piece 10 can be a retractable connection, a screw connection, etc., and the connection between the seat belt 200 and the second piece 20 can be a retractable connection, a screw connection, etc. The seat belt 200 is connected between the first piece 10 and the second piece 20, so that the user can sit on the seat belt 200, thereby realizing the support function of the folding chair 400 for the user.

[0035] The first hinge part 11 and the second hinge part 21 are arranged along the second direction and the hinge axis F1 extends along the second direction, the two first overlapping parts 12 are arranged on both sides of the first hinge part 11 along the first direction, the two second overlapping parts 22 are arranged on both sides of the second hinge part 21 along the first direction, the first overlapping part 12 and the second overlapping part 22 located on the same side of the hinge axis F1 along the first direction are located on both sides of the first hinge part 11 along the third direction, so that the first overlapping part 12 and the second overlapping part 22 can be folded in the third direction to realize the unfolding or folding of the folding skeleton 100.

[0036] The second direction is the arrangement direction of the first hinged portion 11 and the second hinged portion 22, the third direction is the arrangement direction of the first overlapping portion 12 and the second overlapping portion 22, and the first direction is a direction perpendicular to the second direction and perpendicular to the third direction. Figure 1 As shown, the first direction is the up-down direction, the second direction is the front-back direction, and the third direction is the left-right direction. In this application, the description of the directions such as up-down, front-back, left-right, etc. is only based on the directions marked in the drawings, and is not a limitation on the directions used by the folding frame 100.

[0037] The first hinged portion 11 may be one, two or more, and both ends of each first hinged portion 11 are connected to the two first overlapping portions 12. The second hinged portion 21 may be one, two or more, and both ends of each second hinged portion 21 are connected to the two second overlapping portions 22. For example, in some embodiments, Figure 2 As shown, there are two first hinged parts 11 and two second hinged parts 21, and the two first hinged parts 11 are connected to the two first overlapping parts 12, so that the connection between the two first overlapping parts 12 is more secure, and the two second hinged parts 21 are connected to the two second overlapping parts 22, so that the connection between the two second overlapping parts 22 is more secure, and the folding skeleton 100 is not easy to shake and the support is more stable.

[0038] The two-end connecting line of the first hinged part 11 refers to the connecting line of the two ends of the first hinged part 11 connected to the two first overlapping parts 12, and the two-end connecting line of the second hinged part 21 refers to the connecting line of the two ends of the second hinged part 21 connected to the two second overlapping parts 22. Figure 2 As shown, the connecting lines at both ends of the first hinged part 11 and the connecting lines at both ends of the second hinged part 21 are shown as dotted lines in the figure, the angle between the connecting lines at both ends of the first hinged part 11 and the connecting lines at both ends of the second hinged part 21 is the first angle a, and the angle between the first overlapping part 12 and the second overlapping part 22 located on the upper side of the hinge axis F1 is the second angle b.

[0039] The first hinged portion 11 and the second hinged portion 12 are hinged, which is conducive to the staggered folding of the first overlapping portion 12 and the second overlapping portion 22, so that the folding between the first overlapping portion 12 and the second overlapping portion 22 is tight. Here, the folding of the first overlapping portion 12 and the second overlapping portion 22 can be that the first overlapping portion 12 and the second overlapping portion 22 partially abut along the third direction (for example Figure 3 As shown), the first overlapping portion 12 and the second overlapping portion 22 are partially abutted along the second direction, etc.

[0040] The first angle a is always greater than the second angle b, which is beneficial to reducing the storage space required after the first overlapping portion 12 and the second overlapping portion 22 are folded, so as to store more folding frames 100 in a space of a certain size, improve the utilization of space, and reduce the transportation cost required for transporting multiple folding frames 100. For example, in some embodiments, Figure 2-Figure 3 As shown, the first angle a is greater than the second angle b, the first overlapping portion 12 and the second overlapping portion 22 can provide stable support in the unfolded state, and the first overlapping portion 12 and the second overlapping portion 22 are folded tightly in the folded state, and the required storage space is small.

[0041] According to the folding frame 100 of the embodiment of the utility model, the first angle a is greater than the second angle b, which is conducive to folding the first overlapping part 12 and the second overlapping part 22 more tightly together, reducing the storage space required for the first overlapping part 12 and the second overlapping part 22 in the folded state, and improving the utilization rate of the space.

[0042] Since the folding frame 100 according to the embodiment of the utility model has the above-mentioned beneficial technical effects, the folding chair 400 according to the embodiment of the utility model makes the first angle a greater than the second angle b, which is beneficial for the first overlapping part 12 and the second overlapping part 22 to be folded together more tightly, reducing the storage space required for the first overlapping part 12 and the second overlapping part 22 in the folded state, and improving the utilization rate of the space.

[0043] In some embodiments, Figure 1-Figure 4As shown, the folding chair 400 includes a table portion 300, which is conducive to meeting the needs of users, and the table portion 300 is foldable for easy storage.

[0044] In some embodiments of the present invention, Figure 2-Figure 3 As shown, the line connecting the two ends of the first hinged portion 11 is arranged at a first set angle c with the first overlapping portion 12, and the line connecting the two ends of the second hinged portion 21 is arranged at a second set angle d with the second overlapping portion 22. The first set angle c and the second set angle d are both greater than 90°, which is beneficial to reduce the rotational interference between the first overlapping portion 12 and the second overlapping portion 22, increase the rotatable range of the first overlapping portion 12 and the second overlapping portion 22, and further reduce the storage space required after the first overlapping portion 12 and the second overlapping portion 22 are folded.

[0045] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the folding frame 100 includes a folded state and an unfolded state, and the first piece 10 and the second piece 20 can rotate relative to each other so that the folding frame 100 can switch between the folded state and the unfolded state. In the folded state, the first overlapping portion 12 and the second overlapping portion 22 are parallel to each other. The folding frame 100 is in the unfolded state and combined with the seat belt 200 to facilitate supporting the user. The folding frame 100 is in the folded state for easy storage, and the first overlapping portion 12 and the second overlapping portion 22 are parallel to each other in the folded state, which is conducive to realizing the flat folding of the first overlapping portion 12 and the second overlapping portion 22, further reducing the occupied space of the first overlapping portion 12 and the second overlapping portion 22 after folding, facilitating storage and reducing the required storage space.

[0046] For example, in some embodiments, Figure 3-Figure 4 As shown, in the folded state, the opposite sides of the first overlapping portion 12 and the second overlapping portion 22 located on the same side of the hinge axis F1 in the first direction are parallel to each other, so that the opposite sides of the first overlapping portion 12 and the second overlapping portion 22 in the folding skeleton 100 are more closely abutted, which facilitates the storage of the folding skeleton 100 and helps to reduce the storage space required for a single folding skeleton 100.

[0047] In some embodiments, Figure 3-Figure 4 As shown, in the folded state, the opposite sides of the first overlapping portion 12 and the second overlapping portion 22 located on the same side of the hinge axis F1 in the first direction are parallel to each other, so that when multiple folding skeletons 100 are stacked together along the third direction, the gap between adjacent folding skeletons 100 is smaller, and the adjacent folding skeletons 100 are more closely abutted, and the multiple folding skeletons 100 can be folded together more tightly, which is convenient for storing the multiple folding skeletons 100 and helps to reduce the storage space required for the multiple folding skeletons 100.

[0048] In some embodiments, Figure 3-Figure 4As shown, in the folded state, the opposite sides of the first overlapping portion 12 and the second overlapping portion 22 located on the same side of the hinge axis F1 in the first direction are parallel to each other, and the opposite sides are parallel to each other, which facilitates the storage of a single folding skeleton 100 and multiple folding skeletons 100.

[0049] In some embodiments of the present invention, Figure 3-Figure 4 As shown, in the folded state, the surfaces of the first overlapping portion 12 and the second overlapping portion 22 located on the same side of the hinge axis F1 in the third direction facing away from the hinge axis F1 are coplanar, so that the outer surface of the folding skeleton 100 in the folded state is smoother, which is beneficial to reduce the storage space required for a single folding skeleton 100 in the third direction and improve the utilization of space.

[0050] For example, in some embodiments, Figure 4 As shown, the left surfaces of the first overlapping part 12 and the second overlapping part 22 arranged along the up-down direction on the left side of the hinge axis F1 are coplanar, and the right surfaces of the first overlapping part 12 and the second overlapping part 22 arranged along the up-down direction on the right side of the hinge axis F1 are coplanar, so that the outer surfaces of the left and right sides of the folding skeleton 100 are smoother and the occupied space in the left-right direction is small.

[0051] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the projections of the first overlapping portion 12 and the second overlapping portion 22 in the third direction at least partially overlap, so that the first overlapping portion 12 and the second overlapping portion 22 are at least partially on the same plane. During the folding process, the first overlapping portion 12 is not easy to move into the second overlapping portion 22, and the second overlapping portion 22 is not easy to move into the first overlapping portion 12, which is convenient for supporting the user along the same plane, reducing the possibility of the user slipping on the folding chair 400, and providing better support stability.

[0052] For example, in some embodiments, Figure 1 , Figure 3 and Figure 5 As shown, the first hinged portion 11 is located on the side of the second hinged portion 21 close to the middle of the first piece 10. The first overlapping portion 12 includes a first portion 121 and a second portion 124, the first portion 121 includes a first end 122 and a second end 123, the first end 122 is connected to the first hinged portion 11, the second end 123 is connected to the second portion 124, and the second end 123 is arranged on the side of the first end 122 away from the middle of the first piece 10 so that the projection of the second portion 124 and the second overlapping portion 22 in the third direction at least partially overlap, which is conducive to making at least the parts of the first overlapping portion 12 and the second overlapping portion 22 away from the middle of the first piece 10 on the same plane, so that the folding frame 100 is supported on the ground along the same plane, and the folding frame 100 supports the user along the same plane, and the support stability of the folding frame 100 is good.

[0053] In some embodiments, Figure 1 and Figure 5 As shown, the second end 123 of the first part 121 protrudes outward along the second direction relative to the first end 122, which is beneficial to increase the size of the second part 124 along the second direction, making it easier to install more seat belts 200 between the first piece 10 and the second piece 20, and providing better support stability for the user.

[0054] In some embodiments, the first hinged portion 11 is located on a side of the second hinged portion 21 close to the middle of the first piece 10. The second overlapping portion 22 includes a third portion and a fourth portion connected to each other, the third portion includes a third end and a fourth end, the third end is connected to the second hinged portion 21, the second end 123 is connected to the fourth portion, and the fourth end is located on a side of the third end away from the middle of the first piece 10 so that the fourth portion and the projection of the first overlapping portion 12 in the third direction at least partially overlap, which is conducive to making at least the part of the first overlapping portion 12 and the second overlapping portion 22 away from the middle of the first piece 10 on the same plane, the support stability of the folding skeleton 100 is better, and the structural design of the folding skeleton 100 is more flexible.

[0055] In some embodiments, the fourth end of the third part protrudes outward along the second direction relative to the third end, which is beneficial to increase the size of the fourth part along the second direction, facilitates the installation of more seat belts 200 between the first piece 10 and the second piece 20, and provides better support stability for the user.

[0056] In some embodiments where the first overlapping portion 12 and the second overlapping portion 22 are parallel to each other, such as Figure 3-Figure 4 As shown, the folding skeleton 100 includes a folded state and an unfolded state. In the folded state, the sides of the first overlapping portion 12 and the second overlapping portion 22 located on the same side in the second direction are coplanar, so that the surface of the folding skeleton 100 close to the outside in the second direction in the folded state is flatter, so that when multiple folding skeletons 100 are stacked together along the second direction, the outer surfaces of adjacent folding skeletons 100 abut more closely, which is beneficial to reduce the storage space required for multiple folding skeletons 100 in the second direction and improve the utilization of space.

[0057] It should be noted that the side surfaces of the first overlapping portion 12 and the second overlapping portion 22 on the same side in the second direction may be completely coplanar or partially coplanar, and the present invention does not limit this. Figure 5 As shown, the first overlapping portion 12 includes a first portion 121 and a second portion 124 connected to each other, the second overlapping portion 22 and the front side of the first portion 121 are arranged spaced apart, and the front side of the second overlapping portion 22 and the second portion 124 are coplanar.

[0058] In some embodiments, Figure 3-Figure 4As shown, in the folded state, the side surfaces of the first overlapping portion 12 and the second overlapping portion 22 located on the same side in the first direction are coplanar, so that the surface of the folding skeleton 100 close to the outside in the first direction in the folded state is flatter, so that when multiple folding skeletons 100 are stacked together along the first direction, the outer surfaces of adjacent folding skeletons 100 abut more closely, which is beneficial to reduce the storage space required for multiple folding skeletons 100 in the first direction and improve the utilization rate of space.

[0059] In some embodiments of the present invention, Figure 1 As shown, the first overlapping portion 12 includes a first rod 125 and a second rod 126, the two ends of the first rod 125 are respectively connected to one end of the two second rods 126, and the other end of the second rod 126 is connected to the first hinged portion 11. The second overlapping portion 22 includes a third rod 225 and a fourth rod 226, the two ends of the third rod 225 are respectively connected to one end of the two fourth rods 226, and the other end of the second rod 126 is connected to the second hinged portion 21. The first member 10 and the second member 20 are both annular frames.

[0060] The first rod 125 and the second rod 126 can be an integral part, which is not easy to separate or fall apart. The first rod 125 and the second rod 126 can also be separate parts, which is easy to assemble and replace. The third rod 225 and the fourth rod 226 are the same.

[0061] The two ends of the first rod 125 are respectively connected to one end of the two second rods 126, and the two ends of the third rod 225 are respectively connected to one end of the two fourth rods 226, so that the two ends of the first rod 125 will not exceed the ends of the second rod 126, and the two ends of the third rod 225 will not exceed the ends of the fourth rod 226, which is convenient for stacking multiple folding skeletons 100 along the extension direction of the first rod 125, and reducing the gap between adjacent folding skeletons 100, so as to stack more folding skeletons 100 in a space of a certain size, reduce the accommodation space required for stacking multiple folding skeletons 100, and improve the utilization rate of space. For example, in some embodiments, such as Figure 1 As shown, it is convenient to stack more folding frames 100 along the front-to-back direction.

[0062] The first member 10 and the second member 20 are configured as an annular frame, which is beneficial to improving the stability of the folding frame 100. For example, in some embodiments, Figure 1 As shown, the first piece 10 includes two first hinged parts 11 and two first overlapping parts 12 and is configured as an annular frame, and the second piece 20 includes two second hinged parts 21 and two second overlapping parts 22 and is configured as an annular frame, so that the folding frame 100 is not prone to problems such as falling apart and has better stability.

[0063] Other structures and operations of the folding frame 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0064] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected 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.

[0065] In the description of this specification, the description with reference to the terms "embodiment", "specific embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0066] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A folding frame, characterized in that: include: A first piece, the first piece comprising a first hinged portion and two first overlapping portions, the two first overlapping portions being arranged at two sides of the first hinged portion along a first direction and respectively connected to two ends of the first hinged portion; A second piece, the second piece comprising a second hinged portion and two second overlapping portions, the two second overlapping portions being arranged at two sides of the second hinged portion along the first direction and respectively connected to two ends of the second hinged portion; The first hinged portion and the second hinged portion are hinged, a hinge axis between the first hinged portion and the second hinged portion extends along a second direction, the first overlapped portion and the second overlapped portion located on the same side of the hinge axis along the first direction are located on both sides of the first hinged portion along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other; The angle between the two end lines of the first hinged part and the two end lines of the second hinged part is the first angle, and the angle between the first overlapping part and the second overlapping part located on the same side of the hinge axis along the first direction is the second angle, and the first angle is greater than the second angle.

2. The folding frame according to claim 1, characterized in that: The connecting line at both ends of the first hinged portion and the first overlapping portion are arranged at a first set angle, the connecting line at both ends of the second hinged portion and the second overlapping portion are arranged at a second set angle, and both the first set angle and the second set angle are greater than 90°.

3. The folding frame according to claim 1, characterized in that: The folding frame includes a folding state and an unfolding state, and the first piece and the second piece can rotate relative to each other so that the folding frame can switch between the folding state and the unfolding state; In the folded state, the first folded portion and the second folded portion are parallel to each other.

4. The folding frame according to claim 3, characterized in that: In the folded state, the opposite sides of the first overlapping portion and the second overlapping portion located on the same side of the hinge axis in the first direction are parallel to each other; and / or, in the folded state, the opposite sides of the first overlapping portion and the second overlapping portion located on the same side of the hinge axis in the first direction are parallel to each other.

5. The folding frame according to claim 3, characterized in that: In the folded state, surfaces of the first overlapping portion and the second overlapping portion that are located on the same side of the hinge axis in the third direction and face away from the hinge axis are coplanar.

6. The folding frame according to claim 1, characterized in that: Projections of the first overlapping portion and the second overlapping portion in the third direction at least partially overlap.

7. The folding frame according to claim 6, characterized in that: The first hinged portion is located on a side of the second hinged portion close to the middle of the first piece, wherein the first overlapping portion includes a first part and a second part, the first part includes a first end and a second end, the first end is connected to the first hinged portion, the second end is connected to the second part, and the second end is arranged on a side of the first end away from the middle of the first piece so that the second part and the projection of the second overlapping portion in the third direction at least partially overlap; and / or, the second overlapping portion includes a connected third part and a fourth part, the third part includes a third end and a fourth end, the third end is connected to the second hinged portion, the second end is connected to the fourth part, and the fourth end is arranged on a side of the third end away from the middle of the first piece so that the fourth part and the projection of the first overlapping portion in the third direction at least partially overlap.

8. The folding frame according to claim 1, characterized in that: The folding frame includes a folded state and an unfolded state, in which in the folded state, the side surfaces of the first overlapping portion and the second overlapping portion located on the same side in the second direction are coplanar; And / or, in the folded state, the side surfaces of the first overlapping portion and the second overlapping portion located on the same side in the first direction are coplanar.

9. The folding frame according to any one of claims 1 to 8, characterized in that: The first overlapping portion includes a first rod and a second rod, both ends of the first rod are respectively connected to one end of the two second rods, and the other end of the second rod is connected to the first hinged portion. The second overlapping portion includes a third rod and a fourth rod, both ends of the third rod are respectively connected to one end of the two fourth rods, and the other end of the second rod is connected to the second hinged portion. The first member and the second member are both annular frames.

10. A folding chair, characterized in that: It comprises a seat belt and the folding frame according to any one of claims 1 to 9, wherein the seat belt is connected between the first piece and the second piece.

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