Chair with foldable base

Abstract

The utility model provides a chair with a foldable base. The chair comprises a chair body and the base connected to the bottom of the chair body, the base comprises at least two supporting leg sets capable of relatively rotating in the circumferential direction of a vertical axis, and the sizes of the supporting leg sets arranged from top to bottom are sequentially reduced. The at least two supporting leg groups can be switched between a supporting position where the supporting leg groups are unfolded to different directions for supporting and a storage position where the supporting leg groups are rotated to the same direction and are overlapped up and down. The folding chair has the advantages of being simple in structural design, easy and convenient to fold and unfold and small in occupied space after being folded and stored.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of chair with foldable base. BACKGROUND

[0002] Chair is the appliance for people to sit, initially, the chair used by people is mostly fixed shape structure prepared from wood. Foldable chair is widely loved due to small storage space, easy to carry and other characteristics;The existing foldable chair is basically full-body linkage structure, i.e. chair body and base are linked and set, thereby forming synchronous unfolding and storage. However, for the chair with chair body and base unable to be linked and set, the folding structure of chair body and base needs to be designed separately;In prior art, for the foldable storage of base, the structure is relatively complex;Storage operation is inconvenient and the volume is still relatively large after storage. Therefore, the foldable design needs to be carried out for the base of chair. SUMMARY

[0003] Therefore, the utility model provides a kind of chair with foldable base to solve the above problems.

[0004] To achieve the above object, the technical scheme provided by the utility model is as follows:

[0005] A kind of chair with foldable base, including chair body and base connected at the bottom of chair body;Wherein, the base includes at least two support leg groups relatively rotatable along the circumferential direction of a vertical axis, and the size of support leg group arranged from top to bottom is gradually reduced, so that at least two support leg groups can be switched between support position, which is unfolded to different directions to support, and storage position, which is rotated to the same direction and overlaps.

[0006] Further, locking structure is arranged between adjacent two support leg groups, and the relative position is fixed by locking structure when adjacent two support leg groups are in support position or storage position.

[0007] Further, the locking structure includes elastic latch arranged on the first support leg group and pin hole opened on the second support leg group, and when adjacent two support leg groups are unfolded to different directions to support, the elastic latch on the first support leg group is inserted into the pin hole of the second support leg group.

[0008] Further, the elastic latch includes latch, spring and pull ring, the latch is arranged in the first support leg group, the latch has first end towards the second support leg group and second end opposite to the first end, the spring applies elastic force to the first end of the latch, and the second end of the latch is exposed and connected to the pull ring.

[0009] Further, rotation limiting structure is arranged between adjacent two support leg groups to limit the relative rotation angle of adjacent two support leg groups.

[0010] Further, each support leg group comprises a rotating connecting sleeve and two support leg pipes; the two support leg pipes are fixed on opposite sides of the rotating connecting sleeve; the rotating connecting sleeves of the at least two support leg groups are sequentially rotatably sleeved.

[0011] Further, the base further comprises a vertical connecting shaft, the connecting shaft is assembled on the rotating connecting sleeve of the uppermost support leg group; the chair body is rotatably connected on the connecting shaft to realize 360° circumferential rotation.

[0012] Further, the chair body comprises a swing chair frame and a seat cushion; the seat cushion is hung on the swing chair frame and can swing forward and backward relative to the swing chair frame; the swing chair frame is rotatably connected on the connecting shaft to realize 360° circumferential rotation.

[0013] Further, the swing chair frame is a U-shaped support frame, the left and right sides of the seat cushion are provided with a sling, and the left and right sides of the seat cushion are connected to the two top ends of the U-shaped support frame through the slings.

[0014] Further, the U-shaped support frame comprises a U-shaped base and a support rod which is detachably inserted on the two sides of the U-shaped base, the top end of the support rod is fixed with a sling connecting piece; the slings on the left and right sides of the seat cushion are connected to the sling connecting piece.

[0015] Further, the seat cushion comprises a seat cushion part and a backrest part connected to the rear side of the seat cushion part, the left and right sides of the seat cushion are assembled with hard armrests, the slings on the left and right sides of the seat cushion each comprise a first connecting part and a second connecting part, the first connecting part connects the front end of the armrest and the sling connecting piece, the second connecting part connects the rear end of the armrest, the backrest part and the sling connecting piece, the second connecting part has an adjusting mechanism to adjust the included angle between the seat cushion part and the backrest part.

[0016] Further, the second connecting part comprises a first flexible cable, a second flexible cable, a third flexible cable, a first cable winding support and a second cable winding support, the first end of the first flexible cable is connected to the sling connecting piece, and the second end thereof is connected to the first cable winding support; the first end of the second flexible cable is fixedly connected to the first flexible cable, and the second end thereof passes through the second cable winding support and the first cable winding support in sequence and is connected to the backrest part; the second flexible cable is movably connected to the first cable winding support and the second cable winding support; the first end of the third flexible cable is connected to the second cable winding support, and the second end thereof is connected to the rear end of the armrest, so that the second flexible cable, the first cable winding support and the second cable winding support form the adjusting mechanism, and the movement of the second flexible cable relative to the first cable winding support and the second cable winding support realizes the forward and backward rotation of the backrest part relative to the seat cushion part.

[0017] Further, the sling connector has two front and rear connecting ports, and the first flexible rope and the second flexible rope are connected to the two front and rear connecting ports of the sling connector respectively.

[0018] Further, a top end of the support rod is fixedly provided with a support rod base, the support rod base has a protruding positioning convex column, the sling connector is provided with a positioning hole, the positioning hole of the sling connector is sleeved on the positioning convex column of the support rod base to realize positioning assembly, and the sling connector is fixed on the support rod base by a fixing member.

[0019] Further, a rotating shaft with rotation reset is further included, and the chair body is connected to the base through the rotating shaft to be rotatable relative to the base.

[0020] The technical scheme has the following beneficial effects:

[0021] The base comprises at least two support leg groups rotatable relative to each other along a circumferential direction of a vertical shaft, when in use, the at least two support leg groups are unfolded to a support position, thereby supporting at various angles; when being stored, the support leg groups are rotated and folded together, so as to be vertically overlapped in the same direction, i.e. equivalent to the size of only one support leg group; the base has the characteristics of simple structure design, simple folding and unfolding operation, and small occupied space after folding and storing. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 Fig. 1 shows a structure connection schematic diagram of a base and a swing chair frame of the base foldable chair in a use state according to an embodiment;

[0023] Figure 2 Fig. 2 shows a structure connection schematic diagram of a base and a swing chair frame of the base foldable chair in a use state according to an embodiment; Figure 1 Fig. 3 shows a state schematic diagram of the base being folded on the basis of the structure shown in Fig. 1;

[0024] Figure 3 Fig. 4 shows a state schematic diagram of the base and the swing chair frame being folded on the basis of the structure shown in Fig. 2; Figure 1 Fig. 5 shows a state schematic diagram of the base and the swing chair frame being folded on the basis of the structure shown in Fig. 3;

[0025] Figure 4 Fig. 6 shows a partial structure sectional view of the base foldable chair according to an embodiment;

[0026] Figure 5 Fig. 7 shows a partial structure exploded schematic diagram of the swing chair frame according to an embodiment;

[0027] Figure 6 Fig. 8 shows a structure schematic diagram of the base foldable chair according to an embodiment;

[0028] Figure 7Fig. 2 shows a schematic view of the connection structure of the second connecting part in Example 1;

[0029] Figure 8 Fig. 3 shows a schematic view of the first use state of the foldable chair with a base in Example 1;

[0030] Figure 9 Fig. 4 shows a schematic view of the second use state of the foldable chair with a base in Example 1;

[0031] Figure 10 Fig. 5 shows a schematic view of the structure of the foldable chair with a base in Example 2. DETAILED DESCRIPTION

[0032] To further illustrate the embodiments, the utility model provides the accompanying drawings. These accompanying drawings are part of the disclosure of the utility model, which mainly serves to illustrate the embodiments and can be used to explain the operating principle of the embodiments in conjunction with the relevant description of the specification. With reference to these contents, those skilled in the art should be able to understand other possible embodiments and the advantages of the utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0033] In the description of the utility model, the terms "upper", "lower", "left", "right", "front", "back" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, which is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the utility model.

[0034] The utility model will be further described in conjunction with the drawings and specific embodiments.

[0035] Example 1

[0036] Referring to Figures 1 to 7 The embodiment provides a foldable chair with a base, which comprises a chair body 100 and a base 10 connected to the bottom of the chair body 100; wherein the base 10 comprises at least two support leg groups 1 which can rotate relative to the circumferential direction of a vertical axis a, and the size of the support leg groups 1 arranged from top to bottom decreases in turn; in this specific embodiment, the number of support leg groups 1 is two, which are an outer support leg group 11 and an inner support leg group 12 located below the outer support leg group 11; the outer support leg group 11 and the inner support leg group 12 are rotatably connected, so as to realize relative rotation along the circumferential direction of a vertical axis a. The at least two support leg groups 1 can be switched between a support position (such as Figure 1 ) in which they are expanded to different directions to support and a storage position (such as Figure 2 and Figure 3 ) in which they are rotated to the same direction and overlap vertically. As in this embodiment,Figure 1 As shown, when the outer support leg group 11 and the inner support leg group 12 are relatively rotated to be perpendicular to each other, the four directions of front, back, left and right are supported by the outer support leg group 11 and the inner support leg group 12, and at this time, it is the support position. When the outer support leg group 11 and the inner support leg group 12 are relatively rotated to the same direction, the inner support leg group 12 is located on the inner side of the outer support leg group 11, and the upper and lower parts are coincident, as shown Figure 2 and Figure 3 As shown, it is equivalent to the size of only one support leg group 1, which is the storage position. It has the characteristics of simple structure design, easy folding and unfolding operation, and small space occupation after folding and storage.

[0037] Specifically, in the embodiment, each support leg group 1 includes a rotating connecting sleeve 2 and two support leg pipes 3; the two support leg pipes 3 are fixed on the opposite sides of the rotating connecting sleeve 2; the end of the support leg pipe 3 is bent downward to form a landing support point; that is, each support leg group 1 has two landing support points; at the same time, in order to ensure better landing support, the end of the support leg pipe 3 is also fixedly assembled with a foot pad 13.

[0038] Further, the fixed assembly mode of the support leg pipe 3 and the rotating connecting sleeve 2 is that the support leg pipe 3 is inserted into the rotating connecting sleeve 2 and fixed by a pin 18.

[0039] The rotating connecting sleeve 2 of the outer support leg group 11 is defined as the first rotating connecting sleeve 111; the rotating connecting sleeve 2 of the inner support leg group 12 is defined as the second rotating connecting sleeve 121; the second rotating connecting sleeve 121 is rotatably sleeved on the first rotating connecting sleeve 111, so that the outer support leg group 11 and the inner support leg group 12 can be relatively rotatably arranged.

[0040] Locking structure 14 is arranged between adjacent two support leg groups 1, that is, locking structure 14 is arranged between the outer support leg group 11 and the inner support leg group 12, and when the outer support leg group 11 and the inner support leg group 12 are in the support position or the storage position, the relative position is fixed by the locking structure 14. When supporting, prevent the two support leg groups 1 from relatively rotating to cause unstable support; when storing, ensure that the two support leg groups 1 will not rotate relatively.

[0041] With Figure 4The locking structure 14 is described in detail taking the support position in the figure as an example (the structure in the storage position is the same). The locking structure 14 comprises an elastic latch 145 arranged on the first support leg group 1 (in this embodiment, the outer support leg group 11) and a pin hole 144 opened on the second support leg group 1 (in this embodiment, the inner support leg group 12); when the two adjacent support leg groups 1 (i.e. the outer support leg group 11 and the inner support leg group 12) are unfolded to different directions for support, the elastic latch 145 on the outer support leg group 11 is inserted into the pin hole 144 of the inner support leg group 12; thus, the relative fixation of the outer support leg group 11 and the inner support leg group 12 can be achieved.

[0042] Further, the elastic latch 145 comprises a latch piece 141, a spring 142 and a pull ring 143; the latch piece 141 is arranged in the first support leg group 1, specifically in the first rotary connecting sleeve 111; the latch piece 141 has a first end directed to the inner support leg group 12 (i.e. downward) and a second end opposite to the first end; the spring 142 applies a spring force to the first end of the latch piece 141; the second end of the latch piece 141 is exposed and connected to the pull ring 143; when the outer support leg group 11 and the inner support leg group 12 are in the support position, the pin hole 144 of the inner support leg group 12 is aligned with the first end of the latch piece 141; the latch piece 141 moves downward under the action of the spring 142 and is inserted into the pin hole 144; thus, the relative position of the outer support leg group 11 and the inner support leg group 12 is locked. When it is needed to unlock, the pull ring 143 is pulled upward to make the latch piece 141 disengage from the pin hole 144.

[0043] The bottom of the first rotary connecting sleeve 111 of the outer support leg group 11 is also provided with a mounting hole for the latch piece 141 and the spring 142; meanwhile, the mounting hole is equipped with a lock pin cover 15 for limiting the latch piece 141 and the spring 142 from coming out.

[0044] Specifically, the number of the pin holes 144 is at least two; when the outer support leg group 11 and the inner support leg group 12 are in the support position and the storage position, the latch piece 141 can be inserted into one of the pin holes 144 to achieve fixation.

[0045] The above locking structure 14 is one of the preferred solutions in this embodiment; of course, in other embodiments, the structure of the locking structure 14 is not limited to this, and other ways can also be adopted, such as exchanging the positions of the elastic latch 145 and the pin hole 144; or using other fixing ways such as buckles.

[0046] The outer support leg group 11 and the inner support leg group 12 also have a rotation limiting structure 17 therebetween to limit the relative rotation angle of the two, and in this embodiment, the maximum rotation angle of the outer support leg group 11 and the inner support leg group 12 is 90°, which is limited by the rotation limiting structure 17 when the outer support leg group 11 and the inner support leg group 12 are relatively rotated 90° from the storage position of being overlapped from top to bottom to the support position, and is also limited by the rotation limiting structure 17 when the outer support leg group 11 and the inner support leg group 12 are relatively rotated 90° from the support position to the storage position. In this way, the outer support leg group 11 and the inner support leg group 12 are prevented from being excessively rotated, and at the same time, the two positions can be switched more conveniently, that is, when the outer support leg group 11 and the inner support leg group 12 are relatively rotated to be limited by the rotation limiting structure 17, it can be determined that the switching is in place.

[0047] Further, the rotation limiting structure 17 includes a limiting slot hole 171 opened on the first rotation connecting sleeve 111 and a limiting pin 172 fixed on the second rotation connecting sleeve 121, the limiting pin 172 is movably inserted into the limiting slot hole 171 to realize the rotation limiting of the outer support leg group 11 and the inner support leg group 12, which is simple in structure and easy to realize.

[0048] The base 10 further includes a vertically arranged connecting shaft 16, which is assembled on the rotation connecting sleeve 2 (i.e. the first rotation connecting sleeve 111 of the outer support leg group 11) of the uppermost support leg group 1; specifically, the central axis of the connecting shaft 16 is the vertical axis a mentioned above; the chair body 100 is rotatably connected to the connecting shaft 16 to realize a circumferential 360° rotation, so as to realize the function of circumferential rotation of the chair body 100.

[0049] Specifically, the above embodiment takes two support leg groups 1 as an example to detail the part of the base 10 of the present application, and of course, in other embodiments, the number of support leg groups 1 can also be three or more, as long as the size of the support leg groups 1 arranged from top to bottom decreases successively, so that at least two support leg groups 1 can be switched between the support position of being unfolded to different directions for support and the storage position of being rotated to the same direction and being overlapped from top to bottom.

[0050] In this embodiment, the chair is a swing chair, the chair body 100 includes a swing chair frame 20 and a seat cushion 30; the seat cushion 30 is hung on the swing chair frame 20 and can swing forward and backward relative to the swing chair frame 20; the swing chair frame 20 is rotatably connected to the connecting shaft 16 to realize a circumferential 360° rotation. Of course, in other embodiments, the chair can also be an office chair, etc.

[0051] Further, the swing chair frame 20 is a U-shaped support frame 4, and the left and right sides of the seat cushion 30 are provided with a sling 37, and the two sides of the sling 37 are connected to the two top ends of the U-shaped support frame 4, respectively.

[0052] The U-shaped support frame 4 is used to install the seat cushion 30 to form the function of the swing chair, and on the other hand, the U-shaped support frame 4 is similar to a plane structure, when the base 10 is in the storage position, the U-shaped support frame 4 can be in the same plane as the base 10, greatly reducing the thickness size, and the storage space is small.

[0053] The U-shaped support frame 4 includes a U-shaped base 21 and a support rod 22 which is detachably inserted into the two sides of the U-shaped base 21, so that the support rod 22 and the U-shaped base 21 can also be disassembled, reducing the height size after storage, and further reducing the storage space. Further, as shown in the drawings, the two support rods 22 after disassembly can be placed at the U-shaped base 21. Figure 3

[0054] The top end of the support rod 22 is fixed with a sling connecting piece 24, and the left and right sides of the sling 37 of the seat cushion 30 are connected to the sling connecting piece 24, realizing the installation of the seat cushion 30.

[0055] Specifically, in the embodiment, the seat cushion 30 includes a seat cushion part 31 and a backrest part 32 connected to the rear side of the seat cushion part 31, and the left and right sides of the seat cushion 31 are equipped with hard armrests 33, and the left and right sides of the seat cushion 30 The sling 37 includes a first connecting part 34 and a second connecting part 35, the first connecting part 34 connects the front end of the armrest 33 and the sling connecting piece 24, and the second connecting part 35 connects the rear end of the armrest 33, the backrest part 32 and the sling connecting piece 24, and the second connecting part 35 has an adjusting mechanism 36 to adjust the included angle between the seat cushion part 31 and the backrest part 32. As shown in the adjusting mechanism 36 and the posture adjustment of the user, the backrest part 32 rotates forward and backward relative to the seat cushion part 31, so as to realize the angle adjustment between the backrest part 32 and the seat cushion part 31; as shown in the drawings, the included angle between the backrest part 32 and the seat cushion part 31 is about 90°, which can be normally seated; as shown in the drawings, the included angle between the backrest part 32 and the seat cushion part 31 is greater than the angle shown in the drawings, which can make the user sit back. Figure 8 Figure 9 Figure 8

[0056] ​​​​Specifically, in the embodiment, the first connecting part 34 is a flexible cable, specifically a fabric-made belt, and the cable is inelastic or slightly elastic, that is, when the user uses the hanging chair to make the cushion part 31 bear a force, the first connecting part 34 will not stretch or the stretching amount is very small, and the cushion part 31 will not be displaced too much due to the stretching of the first connecting part 34, wherein the small amount of stretching of the first connecting part 34 means that the displacement of the cushion part 31 caused thereby can be ignored.

[0057] More specifically, in the embodiment, the second connecting part 35 includes a first flexible cable 351, a second flexible cable 352, a third flexible cable 353, and a first cable pulley 354 and a second cable pulley 355, the first end of the first flexible cable 351 is connected to the suspension cable connecting part 24, and the second end thereof is connected to the first cable pulley 354; the first end of the second flexible cable 352 is fixedly connected to the first flexible cable 351, and the second end thereof is connected to the backrest part 32 after sequentially passing through the second cable pulley 355 and the first cable pulley 354; and the second flexible cable 352 forms a relative motion connection with the first cable pulley 354 and the second cable pulley 355; the first end of the third flexible cable 353 is connected to the second cable pulley 355, and the second end thereof is connected to the rear end of the armrest 33, so that the second flexible cable 352, the first cable pulley 354, and the second cable pulley 355 form the adjusting mechanism 36, and the movement of the second flexible cable 362 relative to the first cable pulley 351 and the second cable pulley 355 drives the backrest part 32 to rotate relative to the cushion part 31.

[0058] The structure of the adjusting mechanism 36 is similar to that of a pulley block, the first cable pulley 354 corresponds to a fixed pulley, the second cable pulley 355 corresponds to a movable pulley, and the displacement of the end of the second flexible cable 352 is realized through the relative motion of the two pulleys, that is, the relative rotation of the cushion part 31 and the backrest part 32, so as to realize angle adjustment. In the example, the first cable pulley 354 and the second cable pulley 355 are both rectangular metal rings, and the second flexible cable 352 is a flat belt, and the second flexible cable 352 forms a relative sliding connection with the first cable pulley 354 and the second cable pulley 355, respectively. In other embodiments, the first cable pulley 354 and the second cable pulley 355 can also be pulleys, and the second flexible cable 352 is a rope, and the second flexible cable 352 forms a relative rolling connection with the first cable pulley 354 and the second cable pulley 355, respectively, at this time, the first flexible cable 351 is connected to the center of the first cable pulley 354 (pulley), and the third flexible cable 353 is connected to the center of the second cable pulley 355 (pulley).

[0059] In addition to adopting a pulley-like structure as described in this embodiment, the adjusting mechanism 36 can also be formed of an elastic flexible cable. The second flexible cable 352 is a highly elastic flexible cable, while the first flexible cable 351 and the third flexible cable 353 can be non-elastic or slightly elastic flexible cables. Furthermore, the first cable support 354 and the second cable support 355 can be omitted. Compared to the adjusting mechanism of the pulley-like structure described in the above embodiments, the structure using elastic flexible cables is simpler. However, elastic flexible cables are prone to permanent deformation after long-term use. In contrast, each flexible cable in this embodiment can be non-elastic or have negligible slight elasticity, making it less prone to permanent deformation after long-term use, or the amount of permanent deformation is negligible.

[0060] Specifically, the sling connector 24 has two connection ports 241 at the front and rear. The first flexible cable 351 of the first connection part 34 and the second connection part 35 are respectively connected to the two connection ports 241 at the front and rear of the sling connector 24; they do not affect each other.

[0061] The top end of the support rod 22 is fixedly fitted with a support rod base 23. The support rod base 23 has a protruding positioning post 231. The sling connector 24 has a positioning hole 242. The positioning hole 242 of the sling connector 24 is sleeved on the positioning post 231 of the support rod base 23 to achieve positioning assembly. It also includes a fixing member 25, such as a bolt, which fixes the sling connector 24 to the support rod base 23. This achieves a stable connection of the sling connector 24. Of course, in other embodiments, the support rod base 23 and the sling connector 24 can also be an integrally connected structure, thus eliminating the need for separate assembly.

[0062] Example 2

[0063] This embodiment provides a chair with a foldable base, which has a structure largely the same as that of Embodiment 1, except that: Figure 10 As shown, in this embodiment, the chair body 100 is connected to the base 10 via a rotating shaft 19 with rotational reset, enabling the chair body 100 to rotate relative to the base 10 and perform rotational reset; this is equivalent to replacing the connecting shaft 16 in Embodiment 1 with the rotating shaft 19 with rotational reset in this embodiment. Specifically, the structure of the rotating shaft 19 with rotational reset is existing technology, such as the rotational reset functional component disclosed in CN215502067U. This configuration allows the chair body 100 to rotate 10 relative to the base while simultaneously performing automatic rotational reset; for example, when there is no external force, the seat cushion 30 of the chair body 100 faces forward. After the user sits on it, an external force is applied to rotate the chair body 100 to the left or right relative to the base 10. When the external force is removed, the chair body 100 automatically rotates back to the forward position under the reset force of the rotating shaft 19.

[0064] Although the utility model is specifically shown and introduced in combination with the preferred embodiments, it should be understood by those skilled in the art that various changes can be made to the utility model in form and details without departing from the spirit and scope of the utility model defined in the appended claims, and all of them are within the protection scope of the utility model.

Claims

1. A chair with a foldable base, comprising a seat and a base connected to the bottom of the seat; characterized in that: The base comprises at least two support leg groups rotatable relative to each other along a circumferential direction of a vertical axis, and the sizes of the support leg groups arranged from top to bottom are gradually reduced, so that the at least two support leg groups can be switched between a support position in which the support leg groups are spread in different directions for support and a storage position in which the support leg groups are rotated to the same direction and overlap with each other from top to bottom.

2. The seat according to claim 1, wherein: Locking structures are arranged between adjacent two support leg groups, and the relative positions of the adjacent two support leg groups are fixed by the locking structures when the adjacent two support leg groups are in the support position or the storage position.

3. The seat according to claim 2, wherein: The locking structures comprise elastic plugs arranged on the first support leg group and pin holes arranged on the second support leg group, and the elastic plugs on the first support leg group are inserted into the pin holes on the second support leg group when the adjacent two support leg groups are spread in different directions for support.

4. The seat of claim 3 wherein: The elastic plug comprises a plug, a spring and a pull ring, the plug is arranged in the first support leg group, the plug has a first end directed to the second support leg group and a second end opposite to the first end, the spring applies an elastic force to the plug directed to the first end, and the second end of the plug is exposed and connected to the pull ring.

5. The seat of claim 1 wherein: Rotation limiting structures are arranged between adjacent two support leg groups to limit the relative rotation angle of the adjacent two support leg groups.

6. The seat of claim 1 wherein: Each support leg group comprises a rotating connecting sleeve and two support leg pipes, the two support leg pipes are fixed on opposite sides of the rotating connecting sleeve, and the rotating connecting sleeves of the at least two support leg groups are rotatably sleeved.

7. The seat of claim 6 wherein: The base further comprises a vertical connecting shaft, the connecting shaft is assembled on the rotating connecting sleeve of the uppermost support leg group, and the chair body is rotatably connected to the connecting shaft to realize 360° rotation in the circumferential direction.

8. The seat according to claim 7, wherein: The chair body comprises a swing chair frame and a seat cushion, the seat cushion is suspended on the swing chair frame and can swing forward and backward relative to the swing chair frame, and the swing chair frame is rotatably connected to the connecting shaft to realize 360° rotation in the circumferential direction.

9. The seat of claim 8 wherein: The swing chair frame is a U-shaped support frame, and the seat cushion is provided with two hanging ropes on the left and right sides and connected to the two top ends of the U-shaped support frame through the two hanging ropes. The U-shaped support frame comprises a U-shaped base and two support rods which are detachably inserted into the two sides of the U-shaped base, the top end of each support rod is fixed with a hanging rope connecting piece, and the two hanging ropes on the left and right sides of the seat cushion are connected to the hanging rope connecting pieces.

10. The seat of claim 1 wherein: A rotating shaft with rotation reset is further provided, and the chair body is connected to the base through the rotating shaft to be rotatable relative to the base.

Images