Supporting framework structure of butterfly chair and butterfly chair

Abstract

The utility model discloses a supporting framework structure of a butterfly chair and the butterfly chair, which comprises a left front supporting frame, a right front supporting frame, a left rear supporting frame and a right rear supporting frame which are movably connected together, the left front supporting frame, the right front supporting frame, the left rear supporting frame and the right rear supporting frame are configured to be mutually separated and opened to form a use state or mutually stacked and stored in the width direction to form a folding state. The left front supporting frame, the right front supporting frame, the left rear supporting frame and the right rear supporting frame are movably connected, and the left front supporting frame, the right front supporting frame, the left rear supporting frame and the right rear supporting frame are mutually stacked and stored in the width direction in the storage state to form the folding state. And the folding size of the supporting framework structure can be greatly reduced by mutually stacking and storing the four supporting frames in the same direction, so that the supporting framework structure is convenient to carry and place.

Description

Technical Field

[0001] This utility model relates to the field of folding chair technology, specifically to a support frame structure for a butterfly chair and the butterfly chair itself. Background Technology

[0002] Currently, there are relatively few butterfly chairs on the market, and most of them are outdoor butterfly chairs. For example, Chinese document CN210353947U discloses a folding butterfly chair, which has the problems of slightly complicated structure, inconvenient folding, and not small enough size after folding, making it inconvenient to carry and store, resulting in a poor user experience. Further improvements are needed. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a support frame structure for a butterfly chair, which has a compact overall size when folded, making it easy to carry and store.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] A support frame structure for a butterfly chair includes a left front support frame, a right front support frame, a left rear support frame, and a right rear support frame that are movably connected together. The left front support frame, right front support frame, left rear support frame, and right rear support frame are configured to be detachable and open to form a usable state or to be stacked and stored together in the width direction to form a folded state.

[0006] Furthermore, the left front support frame, right front support frame, left rear support frame, and right rear support frame are interconnected by a connecting mechanism. The connecting mechanism has a switchable unfolded state and a closed state. When the connecting mechanism is in the unfolded state, the left front support frame, right front support frame, left rear support frame, and right rear support frame are configured to stack together to form a folded state as the connecting mechanism unfolds. When the connecting mechanism is switched to the closed state, the left front support frame, right front support frame, left rear support frame, and right rear support frame are configured to separate and open to form a usable state as the connecting mechanism closes.

[0007] Furthermore, the left front support frame, right front support frame, left rear support frame, and right rear support frame are in the shape of a "b". The left front support frame, right front support frame, left rear support frame, and right rear support frame have vertical long side and short side respectively, and the left front support frame, right front support frame, left rear support frame, and right rear support frame are all connected to the connecting mechanism through the short side.

[0008] Furthermore, the left front support frame, right front support frame, left rear support frame and right rear support frame are all integrally bent from steel pipes, and the bent ends of the left front support frame, right front support frame, left rear support frame and right rear support frame are respectively fixedly connected to their respective long side by a locking sleeve.

[0009] Furthermore, the left and right rear support frames are respectively provided with vertically arranged left and right rear telescopic rods on their long sides, and after the left and right rear telescopic rods are extended into place, the tops of the left and right rear telescopic rods are higher than the tops of the long sides of the left and right front support frames.

[0010] Furthermore, the top of the long side of the left front support frame and the right front support frame bends outward to form the left front extension and the right front extension, respectively, and the left front extension and the right front extension are set at the same height.

[0011] Furthermore, the connecting mechanism includes two inner joint connectors and two outer joint connectors. The two inner joint connectors and the two outer joint connectors are sequentially and alternately hinged to form a four-segment chain structure. This four-segment chain structure is configured to be laid flat so that the left front support frame, right front support frame, left rear support frame and right rear support frame are stacked and folded together in sequence, or connected end to end to form a square frame so that the left front support frame, right front support frame, left rear support frame and right rear support frame are separated from each other and opened at a preset interval angle.

[0012] Furthermore, the sides of the two inner joint connectors and the two outer joint connectors are fixedly connected to the corresponding short sides of the left front support frame, right front support frame, left rear support frame and right rear support frame by bolts or by welding. The two inner joint connectors are provided with limiting flanges for abutting and limiting cooperation with the outer joint connectors so that the four-segment chain structure can be stably kept in a square shape.

[0013] Furthermore, the sides of the two inner joint connectors and the two outer joint connectors are fixedly connected to the corresponding short sides of the left front support frame, right front support frame, left rear support frame and right rear support frame by bolts or by welding. When the four-segment chain structure is closed to form a square frame, the upper horizontal folded part and / or the lower horizontal folded part of the two inner joint connectors abut together to form a self-limiting structure, and the upper horizontal folded part and / or the lower horizontal folded part of the two outer joint connectors abut together to form a self-limiting structure, thereby enabling the four-segment chain structure to stably maintain a square frame shape when closed.

[0014] Furthermore, a foot pad is installed at the bottom of each of the left front support frame, right front support frame, left rear support frame, and right rear support frame.

[0015] Furthermore, each of the left and right front support frames has a fabric connector for fixing the fabric surface on its long side.

[0016] Based on the same inventive concept, this utility model also provides a butterfly chair, including a support fabric and a support frame structure of any of the butterfly chairs described above. When the connecting mechanism is switched to the closed state, the four corners of the support fabric are respectively connected to the top of the left front support frame, the right front support frame, the left rear support frame, and the right rear support frame, so that the support fabric is suspended on the support frame structure formed by the combination of the left front support frame, the right front support frame, the left rear support frame, and the right rear support frame.

[0017] The above technical solution has the following advantages or beneficial effects:

[0018] The supporting frame structure of the butterfly chair described in this utility model, and the butterfly chair itself, feature a connecting mechanism that allows for switchable unfolded and folded states. Since the left front support frame, right front support frame, left rear support frame, and right rear support frame are interconnected via this connecting mechanism, when the connecting mechanism is unfolded, these frames can be stacked side-by-side in sequence. This significantly reduces the folded size of the supporting frame, making it convenient to carry and store, improving user experience, and enhancing the product's market competitiveness. Furthermore, when the connecting mechanism is switched to the folded state, the left front support frame, right front support frame, left rear support frame, and right rear support frame open separately, providing a larger unfolded area and improving user comfort. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the support frame structure of the folding chair in the unfolded state according to Embodiment 1 of this utility model.

[0020] Figure 2 This is a schematic diagram of the supporting frame structure of the folding chair in the folded state according to Embodiment 1 of this utility model.

[0021] Figure 3 This is a three-dimensional structural diagram of the connecting mechanism in the closed state according to Embodiment 1 of this utility model.

[0022] Figure 4 This is a three-dimensional structural diagram of the inner joint connector of the connecting mechanism in Embodiment 1 of this utility model.

[0023] Figure 5 This is a three-dimensional structural diagram of the outer joint connector of the connecting mechanism in Embodiment 1 of this utility model.

[0024] Figure 6 This is a three-dimensional structural diagram of the connecting mechanism in the closed state according to Embodiment 2 of this utility model.

[0025] Figure 7 This is a schematic diagram of the folding chair support frame structure in the folded state according to Embodiment 2 of this utility model.

[0026] Figure 8 This is a schematic diagram of the support frame structure of the folding chair in the unfolded state according to Embodiment 3 of this utility model.

[0027] Label Explanation:

[0028] 1. Left front support frame, 2. Right front support frame, 3. Left rear support frame, 4. Right rear support frame, 5. Connecting mechanism, 6. Locking sleeve, 7. Foot pad, 8. Fabric connector, 11. Left front extension, 21. Right front extension, 31. Left rear telescopic rod, 41. Right rear telescopic rod, 51. Inner joint connector, 52. Outer joint connector, 511. Limiting flange. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Example 1

[0032] Please refer to the appendix. Figure 1 To be continued Figure 5One embodiment of this utility model provides a support frame structure for a butterfly chair, including a left front support frame 1, a right front support frame 2, a left rear support frame 3, and a right rear support frame 4 that are movably connected together. The left front support frame 1, right front support frame 2, left rear support frame 3, and right rear support frame 4 are configured to be detachable and openable for use, or stacked together in the width direction to form a folded state. In this embodiment, because the left front support frame 1, right front support frame 2, left rear support frame 3, and right rear support frame 4 are movably connected, and the left front support frame 1, right front support frame 2, left rear support frame 3, and right rear support frame 4 are stacked together in the width direction to form a folded state, stacking the four support frames in the same direction can greatly reduce the folding size of the support frame structure, making it easier to carry and store. In one preferred embodiment, the left front support frame 1, right front support frame 2, left rear support frame 3, and right rear support frame 4 are interconnected by a connecting mechanism 5. The connecting mechanism 5 has a switchable unfolded state and a closed state. When the connecting mechanism 5 is in the unfolded state, the left front support frame 1, right front support frame 2, left rear support frame 3, and right rear support frame 4 are configured to stack together to form a folded state as the connecting mechanism 5 unfolds. When the connecting mechanism 5 is switched to the closed state, the left front support frame 1, right front support frame 2, left rear support frame 3, and right rear support frame 4 are configured to separate and open to form a usable state as the connecting mechanism 5 closes. It is understandable that in this embodiment, since the connecting mechanism 5 has a switchable unfolded state and a closed state, and the left front support frame 1, right front support frame 2, left rear support frame 3, and right rear support frame 4 are interconnected through the connecting mechanism 5, when the connecting mechanism 5 is unfolded, the left front support frame 1, right front support frame 2, left rear support frame 3, and right rear support frame 4 can be stacked side by side in sequence, greatly reducing the folded size of the support frame, making it convenient to carry and place, improving the user experience, and enhancing the product's market competitiveness. Furthermore, when the connecting mechanism 5 is switched to the closed state, the left front support frame 1, right front support frame 2, left rear support frame 3, and right rear support frame 4 separate and open, with a larger unfolded area, which helps improve the user's riding comfort.

[0033] Please refer to the appendix. Figure 1 To be continued Figure 3In one preferred embodiment, the left front support frame 1, right front support frame 2, left rear support frame 3, and right rear support frame 4 are in a "b" shape. Each of these frames has a long vertical side and a short vertical side, and all are connected to the connecting mechanism 5 via their short sides. In this embodiment, the four "b"-shaped left front support frames 1, right front support frame 2, left rear support frame 3, and right rear support frame 4 are interconnected by the connecting mechanism 5 to form the main body of the support frame. This provides stable and secure support, preventing tilting and significantly improving the stability and comfort of the folding chair.

[0034] Please refer to the appendix. Figure 1 To be continued Figure 3 In one preferred embodiment, the left front support frame 1, right front support frame 2, left rear support frame 3, and right rear support frame 4 are all integrally bent from steel pipes, and the bent ends of the left front support frame 1, right front support frame 2, left rear support frame 3, and right rear support frame 4 are respectively fixedly connected to their respective long sides by a locking sleeve 6. In this embodiment, since the left front support frame 1, right front support frame 2, left rear support frame 3, and right rear support frame 4 are all integrally bent from steel pipes, their manufacturing is convenient and quick. Furthermore, the fixed connection of the bent ends of the left front support frame 1, right front support frame 2, left rear support frame 3, and right rear support frame 4 to their respective long sides by a locking sleeve 6 results in high structural strength for each support frame, which is beneficial for improving the support stability of the folding chair.

[0035] Please refer to the appendix. Figure 1 To be continued Figure 3 In one preferred embodiment, the left rear support frame 3 and the right rear support frame 4 are respectively provided with vertically arranged left rear telescopic rods 31 and 41 on their long sides. After the left rear telescopic rods 31 and 41 are extended into their positions, their top ends are higher than the top ends of the long sides of the left front support frame 1 and the right front support frame 2. In this embodiment, the provision of the left rear telescopic rods 31 and 41 can further improve the overall size of the support frame structure after folding, making it more portable.

[0036] Please refer to the appendix. Figure 1 To be continued Figure 3 In one preferred embodiment, the top of the long side of the left front support frame 1 and the right front support frame 2 bends outward to form a left front extension 11 and a right front extension 21, respectively, and the left front extension 11 and the right front extension 21 are set at the same height.

[0037] Please refer to the appendix. Figure 3 To be continued Figure 5In one preferred embodiment, the connecting mechanism 5 includes two inner joint connectors 51 and two outer joint connectors 52. The two inner joint connectors 51 and the two outer joint connectors 52 are sequentially and alternately hinged (i.e., inner, outer, inner, outer alternately connected or outer, inner, outer, inner alternately connected) to form a four-segment chain structure. This four-segment chain structure is configured to be able to be laid flat so that the left front support frame 1, right front support frame 2, left rear support frame 3, and right rear support frame 4 can be stacked together, or the ends can be connected and closed to form a square frame so that the left front support frame 1, right front support frame 2, left rear support frame 3, and right rear support frame 4 can be separated from each other and opened at a preset interval angle. In this embodiment, preferably, when the chain structure is connected and closed to form a square frame, the left front support frame 1, right front support frame 2, left rear support frame 3, and right rear support frame 4 are separated from each other, and adjacent support frames are opened at a 90° interval.

[0038] Please refer to the appendix. Figure 3 To be continued Figure 5 In one preferred embodiment, the sides of the two inner joint connectors 51 and the two outer joint connectors 52 are fixedly connected to the corresponding short sides of the left front support frame 1, right front support frame 2, left rear support frame 3 and right rear support frame 4 by bolts or by welding. The two inner joint connectors 51 are provided with limiting flanges 511 for abutting and limiting cooperation with the outer joint connectors 52 so that the four-segment chain structure can be stably kept in a square shape.

[0039] Please refer to the appendix. Figure 1 In one preferred embodiment, a foot pad 7 is installed at the bottom of the left front support frame 1, the right front support frame 2, the left rear support frame 3 and the right rear support frame 4 respectively.

[0040] Please refer to the appendix. Figure 1 To be continued Figure 5 An embodiment of this utility model also provides a butterfly chair, including a support fabric and a support frame structure of the butterfly chair described above. When the connecting mechanism 5 is switched to the closed state, the four corners of the support fabric are respectively connected to the top of the left front support frame 1, the right front support frame 2, the left rear support frame 3 and the right rear support frame 4, so that the support fabric is suspended on the support frame structure formed by the combination of the left front support frame 1, the right front support frame 2, the left rear support frame 3 and the right rear support frame 4.

[0041] Example 2

[0042] Please refer to the appendix. Figure 6 and attached Figure 7The difference between this embodiment and Embodiment 1 lies in the specific structure of the connecting mechanism 5. Specifically, in this embodiment, the sides of the two inner joint connectors 51 and the two outer joint connectors 52 of the connecting mechanism 5 are fixedly connected to the corresponding short sides of the left front support frame 1, right front support frame 2, left rear support frame 3 and right rear support frame 4 by bolts or by welding. When the four-segment chain structure is closed to form a square frame, the upper horizontal folded portion and / or lower horizontal folded portion of the two inner joint connectors 51 abut together to form a self-limiting structure, and the upper horizontal folded portion and / or lower horizontal folded portion of the two outer joint connectors 52 abut together to form a self-limiting structure, thereby enabling the four-segment chain structure to stably maintain a square frame shape when closed.

[0043] Example 3

[0044] Please refer to the appendix. Figure 8 The difference between this embodiment and embodiment one is that a fabric connector 8 for fixing the fabric is provided at the upper part of the long side of the left front support frame 1 and the right front support frame 2. Preferably, the fabric connector 8 is a hook structure.

[0045] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model. Therefore, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A supporting frame structure for a butterfly chair, characterized in that: The device includes a left front support frame (1), a right front support frame (2), a left rear support frame (3), and a right rear support frame (4) that are movably connected together. The left front support frame (1), the right front support frame (2), the left rear support frame (3), and the right rear support frame (4) are configured to be detachable and open to form a use state or stacked together in the width direction to form a folded state.

2. The supporting frame structure of the butterfly chair according to claim 1, characterized in that: The left front support frame (1), right front support frame (2), left rear support frame (3) and right rear support frame (4) are connected to each other by a connecting mechanism (5). The connecting mechanism (5) has a switchable unfolded state and a closed state. When the connecting mechanism (5) is in the unfolded state, the left front support frame (1), right front support frame (2), left rear support frame (3) and right rear support frame (4) are configured to stack together to form a folded state as the connecting mechanism (5) unfolds. When the connecting mechanism (5) is switched to the closed state, the left front support frame (1), right front support frame (2), left rear support frame (3) and right rear support frame (4) are configured to separate and open to form a usable state as the connecting mechanism (5) closes.

3. The supporting frame structure of the butterfly chair according to claim 2, characterized in that: The left front support frame (1), right front support frame (2), left rear support frame (3) and right rear support frame (4) are in the shape of "b". The left front support frame (1), right front support frame (2), left rear support frame (3) and right rear support frame (4) have vertical long side and short side respectively. The left front support frame (1), right front support frame (2), left rear support frame (3) and right rear support frame (4) are all connected to the connecting mechanism (5) through the short side. The left front support frame (1), right front support frame (2), left rear support frame (3) and right rear support frame (4) are all formed by bending steel pipes in one piece. The bent ends of the left front support frame (1), right front support frame (2), left rear support frame (3) and right rear support frame (4) are fixedly connected to their respective long side through a locking sleeve (6).

4. The supporting frame structure of the butterfly chair according to claim 3, characterized in that: The left rear support frame (3) and the right rear support frame (4) are respectively provided with vertically arranged left rear telescopic rod (31) and right rear telescopic rod (41) on their long sides. After the left rear telescopic rod (31) and the right rear telescopic rod (41) are extended into place, the top of the left rear telescopic rod (31) and the right rear telescopic rod (41) is higher than the top of the long side of the left front support frame (1) and the right front support frame (2).

5. The supporting frame structure of the butterfly chair according to claim 3, characterized in that: The top of the long side of the left front support frame (1) and the right front support frame (2) bend outward to form the left front extension (11) and the right front extension (21), respectively, and the left front extension (11) and the right front extension (21) are set at the same height.

6. The supporting frame structure of the butterfly chair according to claim 3, characterized in that: The connecting mechanism (5) includes two inner joint connectors (51) and two outer joint connectors (52). The two inner joint connectors (51) and the two outer joint connectors (52) are sequentially and alternately hinged to form a four-segment chain structure. The four-segment chain structure is configured to be laid flat so that the left front support frame (1), right front support frame (2), left rear support frame (3) and right rear support frame (4) can be stacked and folded together in sequence, or the ends can be connected and folded together to form a square frame so that the left front support frame (1), right front support frame (2), left rear support frame (3) and right rear support frame (4) can be separated from each other and opened at a preset interval angle.

7. The supporting frame structure of the butterfly chair according to claim 6, characterized in that: The sides of the two inner joint connectors (51) and the two outer joint connectors (52) are fixedly connected to the corresponding short sides of the left front support frame (1), right front support frame (2), left rear support frame (3) and right rear support frame (4) by bolts or by welding. The two inner joint connectors (51) are provided with limiting flanges (511) for abutting and limiting with the outer joint connectors (52) so that the four-segment chain structure can be stably kept in a square shape.

8. The supporting frame structure of the butterfly chair according to claim 6, characterized in that: The sides of the two inner joint connectors (51) and the two outer joint connectors (52) are fixedly connected to the corresponding short sides of the left front support frame (1), right front support frame (2), left rear support frame (3) and right rear support frame (4) by bolts or by welding. When the four-segment chain structure is connected end to end to form a square frame, the upper horizontal folded part and / or the lower horizontal folded part of the two inner joint connectors (51) abut together to form a self-limiting structure, and the upper horizontal folded part and / or the lower horizontal folded part of the two outer joint connectors (52) abut together to form a self-limiting structure, thereby enabling the four-segment chain structure to stably maintain a square frame shape when closed.

9. The supporting frame structure of the butterfly chair according to claim 3, characterized in that: Each of the left front support frame (1) and the right front support frame (2) has a fabric connector (8) for fixing the fabric.

10. A butterfly chair, characterized in that: The support fabric includes a support frame structure for the butterfly chair as described in any one of claims 1 to 9. When the connecting mechanism (5) is switched to the closed state, the four corners of the support fabric are respectively connected to the top of the left front support frame (1), the right front support frame (2), the left rear support frame (3), and the right rear support frame (4), so that the support fabric is suspended on the support frame structure formed by the combination of the left front support frame (1), the right front support frame (2), the left rear support frame (3), and the right rear support frame (4).

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