Chair surface structure and folding chair

Abstract

The utility model discloses a seat surface structure and a folding chair, the seat surface structure comprises a seat part, a backrest part and a surrounding edge, one side of the backrest part is connected with the seat part, and the backrest part can overturn around the connecting position of the backrest part and the seat part; the seat part, the backrest part and the surrounding edges on the two sides jointly define a wrapping cavity for containing a human body part, the seat part and the backrest part are each provided with a first folding mark and a second folding mark which intersect, and the seat part and the backrest part can be folded along the first folding marks and the second folding marks. The backrest part is turned over close to / away from the seat part so as to reduce / increase the volume of the wrapping cavity, and when the backrest part and the seat part are mutually overlapped, the two first creases and the two second creases are mutually overlapped. The backrest part is connected with one side of the seat part, so that primary folding opening and closing operation can be realized, secondary folding of the backrest part and the seat part is realized by combining the first folding mark and the second folding mark formed in the backrest part and the seat part, and the volume after folding is effectively reduced.

Description

Technical Field

[0001] This application relates to the technical field of chairs, and in particular to a seat structure and a folding chair. Background Technology

[0002] Folding chairs are commonly used for outdoor camping, fishing, and other activities because of their folding function and ease of storage. Common types of folding chairs include the Moon Chair and the Kermit Chair, both of which have folding storage capabilities. However, their overall size remains relatively large when folded. For hiking and mountaineering enthusiasts, who typically carry only a backpack to reduce weight, existing chairs such as the Moon Chair and Kermit Chair are not suitable for storage in a backpack. Utility Model Content

[0003] To reduce the volume after folding, the primary objective of this application is to provide a chair surface structure.

[0004] The chair surface structure provided in this application adopts the following technical solution:

[0005] A chair seat structure, comprising:

[0006] Seating section,

[0007] A backrest, one side of which is connected to a seat, and the backrest is rotatable around its connection point with the seat; and

[0008] A flexible edging is placed on both sides of the seat and backrest to connect the seat and backrest.

[0009] The seat, backrest, and side edging together form a covered cavity for accommodating the human body. The seat and backrest each have intersecting first and second folds, and both the seat and backrest can be folded along the first and second folds. The backrest flips to move closer to or away from the seat to reduce or increase the volume of the covered cavity, and when the backrest and seat overlap, the two first folds and the two second folds coincide.

[0010] By adopting the above technical solution, the backrest and seat are connected to one side, enabling a flip-opening and closing effect. The edging strengthens the connection between the backrest and seat while limiting their maximum opening angle. Furthermore, when the seat structure is folded, the presence of the first and second creases allows for quick folding along these creases after the backrest and seat are stacked, achieving a three-fold fold. This results in a smaller, more portable size after folding, and the presence of the first and second creases makes each folding and unfolding operation quick and easy.

[0011] Preferably, the first crease and the second crease divide the seat part and the backrest part into multiple filling areas, and each filling area is provided with a filling block with a certain degree of flexibility.

[0012] By adopting the above technical solution, multiple filling blocks are set in the filling area, making the first crease and the second crease more prominent. In addition, the filling blocks with a certain degree of flexibility can provide a certain degree of comfort when people sit on them.

[0013] In order to reduce the volume after folding, a second objective of this application is to provide a folding chair.

[0014] The folding chair provided in this application adopts the following technical solution:

[0015] A folding chair includes the aforementioned seat structure and a support assembly connecting the seat structure. The support assembly includes two support rods arranged at a certain angle, and one end of each support rod is detachably connected to the backrest.

[0016] By adopting the above technical solution, the added support component can provide a certain degree of support and stability when a person sits after the seat structure is unfolded. The support rod in the support component is detachable, which makes it easy to disassemble when folding and reduce the volume after folding.

[0017] Preferably, the support component further includes:

[0018] The adjustment belt is connected at one end to the backrest.

[0019] A restraint sleeve having a first locking hole for engaging a support rod;

[0020] Connecting strap, one end of which connects to the restraint sleeve; and

[0021] Telescopic buckle, wherein the telescopic buckle is respectively connected to the adjusting belt and the connecting belt;

[0022] One end of the connecting strap can slide relative to the telescopic buckle to increase / decrease the horizontal distance from the telescopic buckle to the backrest.

[0023] By adopting the above technical solution, one end of the support rod is connected to the backrest, and the other end is engaged in the restraint sleeve and connected to the telescopic buckle via a connecting strap. The telescopic buckle is in turn connected to the adjustment strap, thereby achieving the connection between the entire support rod and the backrest, limiting the minimum angle between the support rod and the seat, and reducing the safety hazard of the support rod accidentally twisting against the backrest and flipping upwards when a person is sitting. Secondly, the telescopic buckle allows for the adjustment of the length of the adjustable component, thereby adjusting the tilt angle between the support rod and the seat to suit different seating needs.

[0024] Preferably, there are two adjustment belts arranged at an angle, with one end of the adjustment belt connected to the other adjustment belt.

[0025] By adopting the above technical solution, the connection strength between the two angled adjustment belts and the backrest and support rod is improved.

[0026] Preferably, the backrest is further provided with a reinforcing area, and a cloth cover is provided on the reinforcing area. The cloth cover and the reinforcing area enclose a second locking hole for the support rod to engage.

[0027] By adopting the above technical solution, when the support rod is connected to the backrest, it can be detachably connected by engaging with the second locking hole. The second locking hole is formed between the fabric cover and the reinforcing area. The setting of the reinforcing area improves the connection strength between the backrest and the support rod.

[0028] Preferably, the support rod includes:

[0029] A first connecting rod, one end of which is connected to the backrest;

[0030] A second connecting rod connects the first connecting rod and the second connecting rod; and

[0031] The third connecting rod, one end of which is engaged in the first locking hole;

[0032] The second connecting rod includes a main body section and extension sections connected to both ends of the main body section. The two extension sections are respectively engaged with the first connecting rod and the third connecting rod.

[0033] By adopting the above technical solution, the support rod is set as a split structure. The two connecting rods are connected to the first and third connecting rods to achieve the assembly and disassembly of the three parts. After the seat structure is folded, the support rod can be disassembled separately, which can further reduce the folding volume of the entire folding chair.

[0034] Preferably, the support assembly includes an elastic rope that passes through the support rod, and the two ends of the elastic rope are respectively connected to a first connecting rod and a third connecting rod.

[0035] By adopting the above technical solution, the elastic rope can always keep the three connecting rods connected, so that folding can be performed without separating the entire support rod from the seat structure.

[0036] Preferably, the first connecting rod and / or the second connecting rod and / or the third connecting rod are telescopic rods.

[0037] By adopting the above technical solution, the angle between the backrest and the seat can be adjusted by adjusting the length of the telescopic rod, thereby increasing the adjustment range.

[0038] Preferably, it also includes a first strap and a second strap on both sides of the backrest, the ends of the first strap and the second strap being connected by snaps.

[0039] By adopting the above technical solution, after the seat structure is folded, the two ends of the first strap and the second strap can be connected to each other to maintain the folded state of the seat structure. At the same time, the support rod can be tied together with the seat structure, and the snap connection method makes the connection operation more convenient.

[0040] In summary, this application includes at least one of the following beneficial technical effects:

[0041] 1. The initial folding and unfolding operation can be achieved by connecting the backrest and the seat on one side. The second folding is achieved by combining the first fold and the second fold formed in the backrest and the seat. In total, the entire seat structure can be folded three times, which effectively reduces the volume after folding. At the same time, the folding and unfolding operation is more convenient due to the presence of the first fold and the second fold.

[0042] 2. By setting up a support component that can be detachably connected to the seat structure, the support stability of the seat structure can be improved. At the same time, the support rod is a split connection structure. Combined with the setting of elastic rope, the support rod can be detached when the seat structure is folded without having to be removed from the seat structure. Finally, the first and second straps can also be used to maintain the folded state. Attached Figure Description

[0043] Figure 1 This is a schematic diagram showing the main seat structure of the folding chair in Embodiment 1;

[0044] Figure 2 This is a schematic diagram showing the main support components of the folding chair in Embodiment 1;

[0045] Figure 3 This is a schematic diagram of the folding chair in the folded state in Example 1;

[0046] Figure 4 This is a schematic diagram of the structure when the support rod is disassembled in Example 1.

[0047] Explanation of reference numerals in the attached drawings: 1. Seat structure; 11. Seat section; 12. Backrest section; 13. Edge band; 14. First crease; 15. Second crease; 2. Support assembly; 21. Support rod; 211. First connecting rod; 212. Second connecting rod; 2121. Main body section; 2122. Extension section; 213. Third connecting rod; 214. Elastic rope; 22. Reinforced area; 23. Fabric cover; 24. Restraint cover; 25. Adjustment strap; 26. Connecting strap; 27. Telescopic buckle; 3. Snap fastener; 4. First strap; 5. Second strap. Detailed Implementation

[0048] The present application will be further described in detail below with reference to the accompanying drawings.

[0049] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example 1

[0051] Figure 1 The structure of a folding chair is shown, including a seat structure 1 and a connected support component 2. The seat structure 1 is generally L-shaped and includes a seat part 11, a backrest part 12, and two side panels 13. The seat part 11 and the backrest part 12 are connected on one side so that they can be flipped relative to each other. The two side panels 13 are respectively placed on both sides of the seat part 11 and the backrest part 12 and are used to connect the seat part 11 and the backrest part 12. In the unfolded state, that is, when the backrest part 12 and the seat part 11 are at a certain angle, the two side panels 13, together with the backrest part 12 and the seat part 11, form a covered cavity for accommodating the buttocks area. The side panels 13 are made of a flexible fabric. Meanwhile, in the unfolded state, when the side 13 is tightened, the backrest 12 and the seat 11 are at their maximum angle, and the volume of the covering cavity is at its maximum. As the backrest 12 flips towards the seat 11, the volume of the covering cavity gradually decreases, and the backrest 12 can fit against the seat 11. When they fit together, the two side 13 can bend towards each other and be sandwiched between the backrest 12 and the seat 11.

[0052] Furthermore, both the backrest 12 and the seat 11 are provided with a first crease 14 and a second crease 15. The first crease 14 and the second crease 15 intersect. In this embodiment, the second crease 15 is symmetrically distributed with respect to the first crease 14. Of course, the second crease 15 can also be straight like the first crease 14. In this embodiment, the two second creases 15 are respectively at a certain angle to the first crease 14. This allows the sides of the backrest 12 and the seat 11 to retract inward when the entire seat structure 1 is folded along the second crease 15, which facilitates subsequent rapid unfolding.

[0053] The backrest 12 and the seat 11 are divided into multiple filling areas by the first crease 14 and the second crease 15. Filling blocks are provided in the filling areas. The filling blocks are made of flexible materials, such as foam, silicone, or cotton, to provide comfort when sitting.

[0054] Combination Figure 2 The support assembly 2 includes two support rods 21 with a certain included angle. One end of the two support rods 21 is connected to the backrest 12 and the connection point is located on both sides of the upper edge of the backrest 12. The end of the two support rods 21 away from the backrest 12 is connected to a restraining sleeve 24. The restraining sleeve 24 has a first locking hole for the support rod 21 to be locked. One end of the two restraining sleeves 24 is connected, so that the two support rods 21 present a triangular support state.

[0055] The support assembly 2 also includes an adjustment strap 25 connected to the backrest 12 at one end and a telescopic buckle 27 connected to the adjustment strap 25. The adjustment strap 25 has two straps and the ends are connected to both sides of the lower edge of the backrest 12. One end of one adjustment strap 25 is connected to the other adjustment strap 25, and the free section of the other adjustment strap 25 is connected to the telescopic buckle 27. The telescopic buckle 27 is a common back strap telescopic buckle 27. The horizontal distance between the telescopic buckle 27 and the backrest 12 can be adjusted by pulling the adjustment strap 25.

[0056] One end of each of the two restraint sleeves 24 is also connected to a connecting strap 26, which is connected to a telescopic buckle 27. Thus, when the adjustment strap 25 is pulled, the tilt angle between the support rod 21 and the seat part 11 can be adjusted, thereby adjusting the angle between the backrest part 12 and the seat part 11, which is suitable for different people and different sitting postures.

[0057] Combination Figure 3 and Figure 4 The support rod 21 is detachably connected to the backrest 12. Specifically, the backrest 12 is provided with a reinforcing area 22 on both sides of the upper edge. The reinforcing area 22 is a piece of fabric connected to the backrest 12 by sewing. A fabric cover 23 is also provided in the reinforcing area 22. The fabric cover 23 is also sewn so that the fabric cover 23 and the reinforcing area 22 form a second locking hole. The end of the support rod 21 is locked in the second locking hole.

[0058] In this embodiment, the support rod 21 is a centrally located rod and is a split type, including a first connecting rod 211, a second connecting rod 212, and a third connecting rod 213 that are detachably connected to each other. The second connecting rod 212 includes a main body section 2121 and extension sections 2122 connecting both ends of the main body section 2121. The extension sections 2122 and the main body section 2121 are in a stepped shaft configuration, and the two extension sections 2122 are respectively engaged with the first connecting rod 211 and the third connecting rod 213.

[0059] An elastic rope 214 is also threaded through the support rod 21. The two ends of the elastic rope 214 are fixed to the first connecting rod 211 and the second connecting rod 212 respectively, so that the first connecting rod 211, the second connecting rod 212 and the third connecting rod 213 are kept in a non-separated state through the elastic rope 214.

[0060] When folding this chair, the backrest 12 first flips towards the seat 11, causing them to fit together. At this point, the two first creases 14 and two second creases 15 of the backrest 12 and seat 11 coincide. Subsequently, the backrest 12 and seat 11 simultaneously flip along the overlapping second creases 15, and finally fold completely along the first crease. During the folding process, the support rod 21 is pre-segmented, and due to the presence of the elastic rope 214, the entire support rod 21 does not need to be separated from the seat structure 1.

[0061] To improve stability after folding, a first strap 4 and a second strap 5 are provided on both sides of the backrest 12. After folding, the ends of the first strap 4 and the second strap 5 are connected to each other to maintain the folded state of the entire seat structure 1. At the same time, for ease of operation, the first strap 4 and the second strap 5 are connected by snaps 3. Moreover, when stabilizing the seat structure 1, the first strap 4 and the second strap 5 can simultaneously bind the third connecting rod 213 to the seat structure 1, so that the entire folding chair can maintain its folded state without separating the support rod 21. The folded chair is block-shaped and can be easily stored in a backpack. Example 2

[0062] A folding chair differs from Embodiment 1 in that the first connecting rod 211 and / or the second connecting rod 212 and / or the third connecting rod 213 are telescopic rods. In this embodiment, the angle between the backrest 12 and the seat 11 can be adjusted by adjusting the telescopic rods without pulling the adjustment strap 25. Of course, the angle adjustment range can be increased by combining the pulling of the adjustment strap 25. Example 3

[0063] A folding chair differs from Embodiment 1 in that the support rod 21 is a single piece, and the elastic rope 214 is omitted. The single-piece support rod 21 has better structural strength.

[0064] It should be noted that in Embodiments 1 to 3, the support rod 21 is a metal rod, specifically made of any one of Kevlar fiber, basalt fiber, carbon fiber and glass fiber, which ensures rigidity while also being lightweight.

[0065] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A chair seat structure, characterized in that, include: Seating section (11). A backrest (12), one side of which is connected to a seat (11), and the backrest (12) is rotatable around its connection point with the seat (11); and A flexible edging (13) is placed on both sides of the seat part (11) and the backrest part (12) to connect the seat part (11) and the backrest part (12). The seat part (11), the backrest part (12) and the side edging (13) together form a covered cavity for accommodating the human body. The seat part (11) and the backrest part (12) each have intersecting first fold (14) and second fold (15). The seat part (11) and the backrest part (12) can be folded along the first fold (14) and the second fold (15). The backrest part (12) flips up / down from the seat part (11) to reduce / increase the volume of the covered cavity. When the backrest part (12) and the seat part (11) overlap each other, the two first folds (14) and the two second folds (15) coincide with each other.

2. The chair seat structure according to claim 1, characterized in that, The first crease (14) and the second crease (15) separate the seat part (11) and the backrest part (12) into multiple filling areas, and a filling block with a certain degree of flexibility is provided in the filling area.

3. A folding chair, characterized in that, Includes a seat structure (1) as described in claim 1 or 2 and a support assembly (2) connecting the seat structure (1), the support assembly (2) including two support rods (21) arranged at a certain angle, one end of the support rods (21) being detachably connected to the backrest (12).

4. A folding chair according to claim 3, characterized in that, The support component (2) also includes: Adjustment belt (25), one end of which is connected to the backrest (12); The restraint sleeve (24) has a first locking hole for engaging the support rod (21); Connecting strap (26), one end connected to restraint sleeve (24); and Telescopic buckle (27), the telescopic buckle (27) is connected to the adjusting belt (25) and the connecting belt (26) respectively; One end of the connecting strap (26) can slide relative to the telescopic buckle (27) to increase / decrease the horizontal distance from the telescopic buckle (27) to the backrest (12).

5. A folding chair according to claim 4, characterized in that, The adjustment belts (25) are provided in two and are at an angle, wherein the end of one adjustment belt (25) is connected to the other adjustment belt (25).

6. A folding chair according to claim 3, characterized in that, The backrest (12) is also provided with a reinforcing area (22), and a cloth cover (23) is provided on the reinforcing area (22). The cloth cover (23) and the reinforcing area (22) enclose to form a second locking hole for the support rod (21) to engage.

7. A folding chair according to claim 4, characterized in that, The support rod (21) includes: First connecting rod (211), one end of the first connecting rod (211) is connected to the backrest (12); The second connecting rod (212) connects the first connecting rod (211) and the second connecting rod (212); and The third connecting rod (213) has one end engaged in the first locking hole; The second connecting rod (212) includes a main body section (2121) and extension sections (2122) connected to both ends of the main body section (2121). The two extension sections (2122) are respectively engaged with the first connecting rod (211) and the third connecting rod (213).

8. A folding chair according to claim 7, characterized in that, The support assembly (2) includes an elastic rope (214), which is threaded through the support rod (21), and the two ends of the elastic rope (214) are respectively connected to the first connecting rod (211) and the third connecting rod (213).

9. A folding chair according to claim 7, characterized in that, The first connecting rod (211) and / or the second connecting rod (212) and / or the third connecting rod (213) are telescopic rods.

10. A folding chair according to claim 3, characterized in that, It also includes a first strap (4) and a second strap (5) located on both sides of the backrest (12), the ends of the first strap (4) and the second strap (5) being connected by snaps (3).

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